Zeron 100 SA heavy hex bolts are super duplex stainless steel bolts (UNS S32760 / Werkstoff 1.4501) with the wider-AF + thicker-head ASME B18.2.6 pattern, supplied in the Solution Annealed standard supply state. Used where high clamp load + corrosion + single-bolt installation combine, valve body bonnet bolts, structural connections, flange clamps, heat-exchanger floating-head closures. SA is the cost-effective baseline; for NORSOK / API 6A high-load applications see FG heavy hex bolts.
Wider AF + thicker head than B18.2.1 standard hex · SA supply state baseline · Yield 620-720 MPa · PREN ≥ 40
Yield 620-720 MPa typ / UTS 800-870 MPa / Hardness body 22-27 HRC, rolled root ≤ 28 HRC NACE / Charpy V-notch -46°C 60-110 J / Ferrite 40-52% / CPT G48-E ≥ 50°C. Standards: ASME B18.2.6 + ASME B18.2.3.6M + ASTM A1082 + NACE MR0175 + NORSOK M-630 MDS 055.
SA cornerstone · All heavy hex bolt supply states · FG version · FLT version. Send RFQ to info@torqbolt.com / +91-22-66157017 / WhatsApp.
