{"title":"Full Thread Hex Bolts (DIN 933) - Duplex(2205) Stainless Steel","description":"\u003ch1\u003eFull Thread Hex Bolts (DIN 933 \/ GB 5783) — Duplex 2205 Stainless Steel\u003c\/h1\u003e\n\n\u003cp\u003eFULLERKREG DIN 933 \/ GB 5783 full thread hex bolts in Duplex 2205 stainless steel (UNS S31803 \/ S32205) represent a step beyond conventional austenitic stainless steel fasteners. The duplex microstructure — a balanced combination of austenite and ferrite phases — delivers approximately \u003cstrong\u003etwice the yield strength of standard 300-series stainless steel\u003c\/strong\u003e (A2\/A4), combined with outstanding resistance to chloride stress corrosion cracking, pitting, and crevice corrosion. Finished with whitened passivation for maximum surface protection. Compliant with DIN 933, GB 5783, and ISO 4017 standards.\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eProduct Highlights\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e FULLERKREG\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandards:\u003c\/strong\u003e DIN 933 \/ GB 5783 \/ ISO 4017\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Duplex 2205 Stainless Steel (UNS S31803 \/ S32205 \/ 1.4462)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMicrostructure:\u003c\/strong\u003e Duplex (Austenite + Ferrite, approx. 50\/50)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Type:\u003c\/strong\u003e Full Thread (Fully Threaded Shank)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSurface Treatment:\u003c\/strong\u003e Whitened \u0026amp; Passivated (酸洗钝化)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHead Type:\u003c\/strong\u003e Hexagon (Hex Head)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSize Range:\u003c\/strong\u003e M6 – M36 (custom sizes available)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread:\u003c\/strong\u003e Metric coarse thread per ISO 261 \/ DIN 13\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eKey Advantage:\u003c\/strong\u003e ~2× yield strength of A2\/A4 + superior stress corrosion cracking resistance\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eWhy Choose FULLERKREG DIN 933 Duplex 2205 Hex Bolts?\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e✅ \u003cstrong\u003eTwice the yield strength of 300-series stainless\u003c\/strong\u003e — Yield strength ≥ 80 ksi (552 MPa) vs. ~210–450 MPa for A2\/A4 grades\u003c\/li\u003e\n  \u003cli\u003e✅ \u003cstrong\u003eSuperior chloride stress corrosion cracking (SCC) resistance\u003c\/strong\u003e — the critical failure mode of austenitic stainless in hot chloride environments\u003c\/li\u003e\n  \u003cli\u003e✅ \u003cstrong\u003eExcellent pitting \u0026amp; crevice corrosion resistance\u003c\/strong\u003e — PREN (Pitting Resistance Equivalent Number) ≥ 35, significantly higher than A4\/316\u003c\/li\u003e\n  \u003cli\u003e✅ \u003cstrong\u003eHigh fatigue strength\u003c\/strong\u003e — duplex microstructure provides superior fatigue resistance under cyclic loading\u003c\/li\u003e\n  \u003cli\u003e✅ \u003cstrong\u003eGood sulfide stress corrosion resistance\u003c\/strong\u003e — suitable for sour gas and H₂S-containing environments\u003c\/li\u003e\n  \u003cli\u003e✅ \u003cstrong\u003eLow thermal expansion\u003c\/strong\u003e — approximately half that of austenitic stainless, reducing thermal stress in bolted joints\u003c\/li\u003e\n  \u003cli\u003e✅ \u003cstrong\u003eHigh energy absorption\u003c\/strong\u003e — excellent toughness for impact and dynamic load applications\u003c\/li\u003e\n  \u003cli\u003e✅ \u003cstrong\u003eFull thread design\u003c\/strong\u003e — maximum thread engagement; ideal for through-bolting and variable grip-length applications\u003c\/li\u003e\n  \u003cli\u003e✅ \u003cstrong\u003eWholesale \u0026amp; bulk supply\u003c\/strong\u003e — available for offshore, chemical, and industrial distributors and OEMs\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eDuplex 2205 vs. Standard Stainless Steel — Performance Comparison\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth\u003eProperty\u003c\/th\u003e\n      \u003cth\u003eA2 (SUS304)\u003c\/th\u003e\n      \u003cth\u003eA4 (SUS316)\u003c\/th\u003e\n      \u003cth\u003eDuplex 2205 — This Product\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003eTensile Strength (UTS)\u003c\/td\u003e\n\u003ctd\u003e≥ 500–800 MPa\u003c\/td\u003e\n\u003ctd\u003e≥ 500–800 MPa\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e≥ 758–903 MPa (110–131 ksi) ✅\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eYield Strength (0.2% offset)\u003c\/td\u003e\n\u003ctd\u003e210–600 MPa\u003c\/td\u003e\n\u003ctd\u003e210–600 MPa\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e≥ 483–669 MPa (70–97 ksi) ✅\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eElongation\u003c\/td\u003e\n\u003ctd\u003e8–40%\u003c\/td\u003e\n\u003ctd\u003e8–40%\u003c\/td\u003e\n\u003ctd\u003e25% ✅\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eMolybdenum (Mo)\u003c\/td\u003e\n\u003ctd\u003eNone\u003c\/td\u003e\n\u003ctd\u003e2.0–2.5%\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e3.0–3.5% ✅\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eChromium (Cr)\u003c\/td\u003e\n\u003ctd\u003e17–19.5%\u003c\/td\u003e\n\u003ctd\u003e16.5–18.5%\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e22.0–23.0% ✅\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003ePREN (Pitting Resistance)\u003c\/td\u003e\n\u003ctd\u003e~18–20\u003c\/td\u003e\n\u003ctd\u003e~24–26\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e≥ 35 ✅\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eChloride SCC Resistance\u003c\/td\u003e\n\u003ctd\u003ePoor\u003c\/td\u003e\n\u003ctd\u003eModerate\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eExcellent ✅\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eSulfide SCC Resistance\u003c\/td\u003e\n\u003ctd\u003ePoor\u003c\/td\u003e\n\u003ctd\u003eModerate\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eGood ✅\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eFatigue Strength\u003c\/td\u003e\n\u003ctd\u003eStandard\u003c\/td\u003e\n\u003ctd\u003eStandard\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eSuperior ✅\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eThermal Expansion\u003c\/td\u003e\n\u003ctd\u003e~17 × 10⁻⁶\/°C\u003c\/td\u003e\n\u003ctd\u003e~17 × 10⁻⁶\/°C\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e~13 × 10⁻⁶\/°C (lower) ✅\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eMicrostructure\u003c\/td\u003e\n\u003ctd\u003eAustenitic\u003c\/td\u003e\n\u003ctd\u003eAustenitic\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eDuplex (Austenite + Ferrite) ✅\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eMagnetic\u003c\/td\u003e\n\u003ctd\u003eNon-magnetic\u003c\/td\u003e\n\u003ctd\u003eNon-magnetic\u003c\/td\u003e\n\u003ctd\u003eSlightly magnetic (ferrite phase)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eMechanical Properties — Duplex 2205 (Room Temperature)\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth\u003eProperty\u003c\/th\u003e\n      \u003cth\u003eValue\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003eUltimate Tensile Strength (UTS)\u003c\/td\u003e\n\u003ctd\u003e113–131 ksi (779–903 MPa) at room temperature\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eYield Strength at 0.2% Offset\u003c\/td\u003e\n\u003ctd\u003e70–97 ksi (483–669 MPa) at room temperature\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eElongation (%)\u003c\/td\u003e\n\u003ctd\u003e25%\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eUsable Temperature Limit\u003c\/td\u003e\n\u003ctd\u003e570°F \/ 300°C (continuous)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eHardness (typical)\u003c\/td\u003e\n\u003ctd\u003e≤ 310 HB \/ ≤ 32 HRC\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eTensile Properties at Elevated Temperatures\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth\u003eTemperature (°F)\u003c\/th\u003e\n      \u003cth\u003eUltimate Tensile (ksi)\u003c\/th\u003e\n      \u003cth\u003eYield Strength at 0.2% Offset (ksi)\u003c\/th\u003e\n      \u003cth\u003eElongation (%)\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003eRoom Temp.\u003c\/td\u003e\n\u003ctd\u003e113–131\u003c\/td\u003e\n\u003ctd\u003e70–97\u003c\/td\u003e\n\u003ctd\u003e25\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e400\u003c\/td\u003e\n\u003ctd\u003e93–106\u003c\/td\u003e\n\u003ctd\u003e51–75\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e600\u003c\/td\u003e\n\u003ctd\u003e94\u003c\/td\u003e\n\u003ctd\u003e56\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e700\u003c\/td\u003e\n\u003ctd\u003e93\u003c\/td\u003e\n\u003ctd\u003e54\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cem\u003e* Data from standard material specifications. Actual values may vary by heat and product form. For elevated temperature applications above 300°C (570°F), consult a materials engineer as duplex steels may experience embrittlement.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eChemical Composition — Duplex 2205 (UNS S31803 \/ S32205)\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth\u003eElement\u003c\/th\u003e\n      \u003cth\u003eFe\u003c\/th\u003e\n      \u003cth\u003eCr (%)\u003c\/th\u003e\n      \u003cth\u003eNi (%)\u003c\/th\u003e\n      \u003cth\u003eMo (%)\u003c\/th\u003e\n      \u003cth\u003eMn (%)\u003c\/th\u003e\n      \u003cth\u003eSi (%)\u003c\/th\u003e\n      \u003cth\u003eN (%)\u003c\/th\u003e\n      \u003cth\u003eP (%)\u003c\/th\u003e\n      \u003cth\u003eC (%)\u003c\/th\u003e\n      \u003cth\u003eS (%)\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003eMin %\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003ctd\u003e22.0\u003c\/td\u003e\n\u003ctd\u003e4.5\u003c\/td\u003e\n\u003ctd\u003e3.0\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eMax %\u003c\/td\u003e\n\u003ctd\u003eBal.\u003c\/td\u003e\n\u003ctd\u003e23.0\u003c\/td\u003e\n\u003ctd\u003e6.5\u003c\/td\u003e\n\u003ctd\u003e3.5\u003c\/td\u003e\n\u003ctd\u003e2.0\u003c\/td\u003e\n\u003ctd\u003e1.0\u003c\/td\u003e\n\u003ctd\u003e0.2\u003c\/td\u003e\n\u003ctd\u003e0.030\u003c\/td\u003e\n\u003ctd\u003e0.03\u003c\/td\u003e\n\u003ctd\u003e0.02\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cem\u003eNitrogen (N) is a key alloying element in Duplex 2205, acting as a strong austenite stabilizer and significantly enhancing pitting corrosion resistance and strength. The high Chromium (22–23%) and Molybdenum (3.0–3.5%) content, combined with Nitrogen, gives Duplex 2205 its PREN ≥ 35 — far exceeding standard A4\/316 stainless steel (PREN ~24–26).\u003c\/em\u003e\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eApplicable Standards \u0026amp; Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth\u003eStandard\u003c\/th\u003e\n      \u003cth\u003eDescription\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003eUNS S31803 \/ S32205\u003c\/td\u003e\n\u003ctd\u003eDuplex 2205 stainless steel — primary material designation\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eW. Nr. \/ EN 1.4462\u003c\/td\u003e\n\u003ctd\u003eEuropean material number for Duplex 2205\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eWerkstoff 1.4462 Duplex\u003c\/td\u003e\n\u003ctd\u003eGerman material designation\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eASTM A 182\u003c\/td\u003e\n\u003ctd\u003eForged or rolled alloy and stainless steel pipe flanges, fittings, and valves\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eASTM A 240\u003c\/td\u003e\n\u003ctd\u003eChromium and chromium-nickel stainless steel plate, sheet, and strip\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eASTM A 276 Condition A \/ S\u003c\/td\u003e\n\u003ctd\u003eStainless steel bars and shapes\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eASTM A 479\u003c\/td\u003e\n\u003ctd\u003eStainless steel bars and shapes for use in boilers and pressure vessels\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eASTM A 790\u003c\/td\u003e\n\u003ctd\u003eSeamless and welded ferritic\/austenitic stainless steel pipe\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eASME SA 182 \/ SA 240 \/ SA 479 \/ SA 789\u003c\/td\u003e\n\u003ctd\u003eASME equivalents of ASTM standards\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eNACE MR0175 \/ ISO 15156\u003c\/td\u003e\n\u003ctd\u003eSour service (H₂S) material requirements\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eNORSOK MDS D45 Grade F51\u003c\/td\u003e\n\u003ctd\u003eNorwegian offshore standard for Duplex 2205\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eDIN 933 \/ ISO 4017 \/ GB 5783\u003c\/td\u003e\n\u003ctd\u003eFull thread hexagon head bolt dimensional standard\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eDimensional Specifications — DIN 933 \/ ISO 4017 Full Thread Hex Bolts\u003c\/h2\u003e\n\u003cp\u003eAll dimensions in millimeters (mm). Data per DIN 933 \/ ISO 4017 standard.\u003c\/p\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth\u003eThread (d)\u003c\/th\u003e\n      \u003cth\u003ePitch (mm)\u003c\/th\u003e\n      \u003cth\u003es — A\/F (mm)\u003c\/th\u003e\n      \u003cth\u003ee — A\/C (mm)\u003c\/th\u003e\n      \u003cth\u003ek — Head Height (mm)\u003c\/th\u003e\n      \u003cth\u003ed_w min (mm)\u003c\/th\u003e\n      \u003cth\u003eLength Range (mm)\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003eM6\u003c\/td\u003e\n\u003ctd\u003e1.0\u003c\/td\u003e\n\u003ctd\u003e10\u003c\/td\u003e\n\u003ctd\u003e11.05\u003c\/td\u003e\n\u003ctd\u003e4.0\u003c\/td\u003e\n\u003ctd\u003e8.9\u003c\/td\u003e\n\u003ctd\u003e10 – 80\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eM8\u003c\/td\u003e\n\u003ctd\u003e1.25\u003c\/td\u003e\n\u003ctd\u003e13\u003c\/td\u003e\n\u003ctd\u003e14.38\u003c\/td\u003e\n\u003ctd\u003e5.3\u003c\/td\u003e\n\u003ctd\u003e11.6\u003c\/td\u003e\n\u003ctd\u003e16 – 100\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eM10\u003c\/td\u003e\n\u003ctd\u003e1.5\u003c\/td\u003e\n\u003ctd\u003e17\u003c\/td\u003e\n\u003ctd\u003e18.90\u003c\/td\u003e\n\u003ctd\u003e6.4\u003c\/td\u003e\n\u003ctd\u003e14.6\u003c\/td\u003e\n\u003ctd\u003e20 – 120\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eM12\u003c\/td\u003e\n\u003ctd\u003e1.75\u003c\/td\u003e\n\u003ctd\u003e19\u003c\/td\u003e\n\u003ctd\u003e21.10\u003c\/td\u003e\n\u003ctd\u003e7.5\u003c\/td\u003e\n\u003ctd\u003e16.6\u003c\/td\u003e\n\u003ctd\u003e25 – 150\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eM16\u003c\/td\u003e\n\u003ctd\u003e2.0\u003c\/td\u003e\n\u003ctd\u003e24\u003c\/td\u003e\n\u003ctd\u003e26.75\u003c\/td\u003e\n\u003ctd\u003e10.0\u003c\/td\u003e\n\u003ctd\u003e22.5\u003c\/td\u003e\n\u003ctd\u003e35 – 200\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eM20\u003c\/td\u003e\n\u003ctd\u003e2.5\u003c\/td\u003e\n\u003ctd\u003e30\u003c\/td\u003e\n\u003ctd\u003e33.53\u003c\/td\u003e\n\u003ctd\u003e12.5\u003c\/td\u003e\n\u003ctd\u003e27.7\u003c\/td\u003e\n\u003ctd\u003e45 – 200\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eM24\u003c\/td\u003e\n\u003ctd\u003e3.0\u003c\/td\u003e\n\u003ctd\u003e36\u003c\/td\u003e\n\u003ctd\u003e39.98\u003c\/td\u003e\n\u003ctd\u003e15.0\u003c\/td\u003e\n\u003ctd\u003e33.3\u003c\/td\u003e\n\u003ctd\u003e50 – 200\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eM30\u003c\/td\u003e\n\u003ctd\u003e3.5\u003c\/td\u003e\n\u003ctd\u003e46\u003c\/td\u003e\n\u003ctd\u003e50.85\u003c\/td\u003e\n\u003ctd\u003e18.7\u003c\/td\u003e\n\u003ctd\u003e42.8\u003c\/td\u003e\n\u003ctd\u003e60 – 200\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eM36\u003c\/td\u003e\n\u003ctd\u003e4.0\u003c\/td\u003e\n\u003ctd\u003e55\u003c\/td\u003e\n\u003ctd\u003e60.79\u003c\/td\u003e\n\u003ctd\u003e22.5\u003c\/td\u003e\n\u003ctd\u003e51.1\u003c\/td\u003e\n\u003ctd\u003e70 – 200\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cem\u003e* Custom sizes and lengths available on request. Contact FULLERKREG for non-standard requirements.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eApplication Scenarios\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e⚓ \u003cstrong\u003eOffshore \u0026amp; subsea oil and gas\u003c\/strong\u003e — platform structural connections, wellhead equipment, subsea manifolds in high-chloride, high-pressure environments\u003c\/li\u003e\n  \u003cli\u003e🌊 \u003cstrong\u003eMarine \u0026amp; shipbuilding\u003c\/strong\u003e — high-load structural bolting in seawater and salt-spray environments where SCC of austenitic stainless is a concern\u003c\/li\u003e\n  \u003cli\u003e🧪 \u003cstrong\u003eChemical \u0026amp; petrochemical processing\u003c\/strong\u003e — chloride-containing process streams, acid environments, bleaching operations\u003c\/li\u003e\n  \u003cli\u003e💧 \u003cstrong\u003eDesalination plants\u003c\/strong\u003e — high-chloride brine environments where A4\/316 suffers pitting failure\u003c\/li\u003e\n  \u003cli\u003e💧 \u003cstrong\u003ePulp \u0026amp; paper industry\u003c\/strong\u003e — bleaching and washing equipment exposed to chlorine compounds\u003c\/li\u003e\n  \u003cli\u003e🌡️ \u003cstrong\u003eSour gas \u0026amp; H₂S environments\u003c\/strong\u003e — NACE MR0175 \/ ISO 15156 compliant for sour service applications\u003c\/li\u003e\n  \u003cli\u003e🏗️ \u003cstrong\u003eCoastal \u0026amp; port infrastructure\u003c\/strong\u003e — high-load structural connections in aggressive marine atmospheres\u003c\/li\u003e\n  \u003cli\u003e⚡ \u003cstrong\u003eOffshore wind energy\u003c\/strong\u003e — monopile and jacket structure fastening in seawater splash zones\u003c\/li\u003e\n  \u003cli\u003e🏭 \u003cstrong\u003eFood processing\u003c\/strong\u003e — hygienic equipment in chloride-containing cleaning and processing environments\u003c\/li\u003e\n  \u003cli\u003e💧 \u003cstrong\u003eWater treatment \u0026amp; closed-loop systems\u003c\/strong\u003e — brackish water, cooling water, and process water systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eProduct Gallery\u003c\/h2\u003e\n\u003cp\u003eFULLERKREG DIN 933 Full Thread Hex Bolts — Duplex 2205 Stainless Steel — actual product photos:\u003c\/p\u003e\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"width:25%; text-align:center; padding:12px;\"\u003e[Product Photo 1]\u003c\/td\u003e\n      \u003ctd style=\"width:25%; text-align:center; padding:12px;\"\u003e[Product Photo 2]\u003c\/td\u003e\n      \u003ctd style=\"width:25%; text-align:center; padding:12px;\"\u003e[Product Photo 3]\u003c\/td\u003e\n      \u003ctd style=\"width:25%; text-align:center; padding:12px;\"\u003e[Product Photo 4]\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eOrdering \u0026amp; Packaging Information\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackaging:\u003c\/strong\u003e Bulk carton \/ polybag per size and length; custom labeling available for OEM, offshore, and distributor orders\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMOQ:\u003c\/strong\u003e Contact FULLERKREG sales for wholesale minimum order quantities\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLead Time:\u003c\/strong\u003e Duplex 2205 is a specialty material — lead times may be longer than standard stainless grades; contact us for current availability\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCertifications:\u003c\/strong\u003e Material test reports (MTR), NACE MR0175 compliance documentation, and third-party inspection certificates available on request\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCustom Requirements:\u003c\/strong\u003e Non-standard sizes, lengths, thread forms, and special markings available — contact us\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: What is Duplex 2205 stainless steel?\u003c\/strong\u003e\u003cbr\u003e\nA: Duplex 2205 (UNS S31803 \/ S32205, EN 1.4462) is a two-phase stainless steel with a microstructure of approximately 50% austenite and 50% ferrite. This duplex structure provides approximately twice the yield strength of standard 300-series austenitic stainless steels (A2\/A4), combined with superior resistance to chloride stress corrosion cracking, pitting, and crevice corrosion.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Why choose Duplex 2205 over A4 (SUS316) stainless steel?\u003c\/strong\u003e\u003cbr\u003e\nA: Duplex 2205 offers three key advantages over A4\/316: (1) approximately twice the yield strength, allowing smaller bolt sizes for the same load; (2) far superior resistance to chloride stress corrosion cracking (SCC) — the primary failure mode of austenitic stainless in hot chloride environments; and (3) higher PREN (≥ 35 vs. ~24–26 for 316), meaning better pitting and crevice corrosion resistance.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Is Duplex 2205 suitable for sour gas (H₂S) service?\u003c\/strong\u003e\u003cbr\u003e\nA: Yes. Duplex 2205 meets NACE MR0175 \/ ISO 15156 requirements for sour service applications, making it suitable for oil and gas environments containing hydrogen sulfide (H₂S).\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: What is the maximum service temperature for Duplex 2205?\u003c\/strong\u003e\u003cbr\u003e\nA: The recommended maximum continuous service temperature is 300°C (570°F). Above this temperature, duplex steels may experience sigma phase embrittlement, which reduces toughness. For higher temperature applications, consult a materials engineer.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Are Duplex 2205 bolts magnetic?\u003c\/strong\u003e\u003cbr\u003e\nA: Yes, Duplex 2205 is slightly magnetic due to its ferrite phase content. This is a normal characteristic of duplex stainless steels and does not affect corrosion resistance or mechanical properties.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: What surface treatment is applied?\u003c\/strong\u003e\u003cbr\u003e\nA: FULLERKREG Duplex 2205 hex bolts are acid-washed (whitened) and passivated, removing surface contamination and enhancing the natural chromium oxide passive layer for maximum corrosion resistance.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Can I get material test reports (MTR) and NACE compliance documentation?\u003c\/strong\u003e\u003cbr\u003e\nA: Yes. FULLERKREG provides full material test reports, chemical and mechanical property certifications, and NACE MR0175 \/ ISO 15156 compliance documentation upon request for wholesale and OEM orders.\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003cp\u003e\u003cem\u003eFULLERKREG — Precision Fasteners to ISO\/DIN\/GB Standards. All technical data is provided for reference. Always verify fastener selection and torque requirements with a qualified engineer for structural and safety-critical applications.\u003c\/em\u003e\u003c\/p\u003e","products":[],"url":"https:\/\/www.fullerkr.com\/collections\/full-thread-hex-bolts-din-933-duplex2205-stainless-steel.oembed","provider":"Fullerkreg Fasteners","version":"1.0","type":"link"}