ASM Fastener – Certified Manufacturer of Stud Bolts for Extreme Environments

2025-06-09 09:54:00

ASM is a national high-tech enterprise and one of China’s premier ASME-standard fastener manufacturers. We are a certified supplier of fasteners for offshore FPSO (Floating Production Storage and Offloading) systems and hold the Special Equipment Manufacturing License (TS) issued by China’s National Special Equipment Inspection Institute for pressure pipeline components.

Our factory has passed numerous international certifications, including:

• API 20E and API 20F (carbon steel, alloy steel, and corrosion-resistant bolting for the oil and gas industry)

• NORSOK M650 (Norwegian oil industry material standard)

• CE Certification including PED 4.3, CPR 14399, and CPR 15048

• ISO9001, ISO14001, and ISO45001

We are currently preparing for ABS (American Bureau of Shipping) and CNSA laboratory certifications in 2025.

Core Philosophy:

Employee Peace of Mind · Product Excellence · Customer Confidence
We believe a safe and supportive environment allows our team to work with dedication, delivering superior products that meet the highest expectations.

Main Products: Stud Bolts & Nuts for High/Low Temperature & High Pressure Applications

ASM specializes in ASME-standard stud bolts designed for use in extreme environments ranging from -198°C to 816°C under high pressure. These products are widely applied in:

• Oil & gas pipeline connections

• Offshore platforms

• Petrochemical equipment

• Flange securing systems

• Pressure vessels and structural piping

Key Material Grades for Stud Bolts:

High Temperature / High Pressure:

• SA193 B7 + SA194 2H

• SA193 B7M + SA194 2HM

• SA193 B8 + SA194 8

• SA193 B16 + SA194 7

Low Temperature / High Pressure:

• SA320 L7 + SA194 7L

• SA320 L7M + SA194 7ML

• SA320 B8 + SA194 8

• SA320 L43 + SA194 7L

Surface Treatments:

• Black Oxide (12H salt spray)

• Zinc Plating (48H)

• Dacromet (480H)

• Hot-dip Galvanized (720H)

• Teflon Coating (up to 3500H, with multi-layer combinations like Zn-Ni + Teflon or Al-Ceramic + Teflon)

Choose ASM – Your Reliable Partner for ASME Stud Bolts

With 15+ years of expertise and complete traceability via EN10204 3.1 certificates, ASM delivers trusted solutions for the most demanding applications.

For inquiries and technical data, please contact us.
ASM – Precision Fastening for the Energy Industry