B7M Stud Bolts & 2HM Nuts for Sour Service (SAES-L-109)

Engineered for the most demanding environments in the oil and gas sector, this B7M stud bolt and 2HM nut assembly is specifically formulated for sour service applications. The B7M alloy steel offers superior resistance to hydrogen blistering and cracking, making it a critical component for flanges and high-pressure connections exposed to corrosive hydrogen sulfide (H2S) atmospheres.

Each stud bolt is manufactured to achieve a maximum hardness of 235 HB, ensuring optimal ductility and resistance to stress corrosion cracking. The accompanying 2HM nuts provide the necessary torque and clamping force to maintain seal integrity under extreme thermal and pressure fluctuations. This product line strictly adheres to Aramco SAES-L-109 and NACE MR0175/ISO 15156 specifications, guaranteeing compliance with international safety and material standards.

• Material: B7M Alloy Steel Studs with 2HM Nuts
• Hardness: Maximum 235 HB for enhanced sour service resistance
• Standards: Compliant with SAES-L-109 and NACE MR0175
• Application: Ideal for flanged connections in refineries, petrochemical plants, and upstream facilities
• Quality: 100% tested and certified for material integrity and dimensional accuracy