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A453 660 Bolt Chinese Supplier
QS Fastener: A453 660 Bolt Chinese Supplier
Product: A453 660 Bolt Chinese Supplier
Size:M24
Length: 200 mm
Material: ASTM A453 Gr.660 Cl.A
Special Requirement: Design Temperature at -196℃
Standard: ISO261 Thread, ISO4033 Nut
1 Stud Bolt Full Length Threaded with 2 Heavy Hex Nuts
Price: EXW USD 29.9/ Set
MOQ: 1 Set
Customization: yes
Delivery time: 7-30 Day
Size:M24
Length: 200 mm
Material: ASTM A453 Gr.660 Cl.A
Special Requirement: Design Temperature at -196℃
Standard: ISO261 Thread, ISO4033 Nut
1 Stud Bolt Full Length Threaded with 2 Heavy Hex Nuts
Price: EXW USD 29.9/ Set
MOQ: 1 Set
Customization: yes
Delivery time: 7-30 Day
Quantity
For critical low-temperature bolting applications, the A453 660 Bolt from our Chinese supplier offers a reliable, cost-effective solution without compromising performance. This full-thread stud bolt, size M24 x 200 mm, is manufactured from ASTM A453 Gr.660 Cl.A – a precipitation-hardening nickel-based alloy specifically selected for its exceptional retention of tensile strength and impact toughness down to -196 °C. Such cryogenic service makes it indispensable for LNG plant flanges, cold-box penetrations, and ultra-low-temperature process piping where standard fasteners would become brittle and fail.
Threads are cut to ISO 261 (metric coarse) and paired with two heavy hex nuts per ISO 4033, ensuring full load distribution and simplified field torqueing. Even at single-set MOQ and EXW USD 29.9/set, we support full customization – from special lengths to alternative coating specs – with typical lead times of 7–30 days.
Surface finishing protocol goes beyond simple cleaning. After precision machining, each batch undergoes a stringent pretreatment: alkaline degreasing followed by mechanical brushing to remove mill scale and oxide films. The core strengthening route is a controlled quench (800–900 °C) and temper (200–600 °C) to optimize hardness-ductility balance. For corrosion protection, we offer hot-dip galvanizing (zinc) for general atmospheric service, or aluminum diffusion coating via thermal spray / PVD for oxidation resistance in higher-temperature auxiliary zones. Where wear is a concern, optional ion nitriding (CVD-assisted) creates a hardened case while preserving core toughness. Post-treatment includes 100% visual and roughness inspection, plus a final rust-preventive oil film to safeguard cargo during ocean transit. Every lot is traceable, and we provide MTCs per EN 10204 3.1 upon request.
Choose this A453 660 Bolt, Chinese supplier backed, when your project demands cryogenic reliability, competitive pricing, and flexible logistics – all in one standard-compliant package.
FAQ
Q1: Can this A453 660 Bolt really withstand -196 °C without impact embrittlement?
A: Yes. ASTM A453 Gr.660 Cl.A retains ductility at liquid nitrogen temperatures; we supply impact test data upon request.
A: Yes. ASTM A453 Gr.660 Cl.A retains ductility at liquid nitrogen temperatures; we supply impact test data upon request.
Q2: What is the difference between full-thread and partial-thread stud bolts for cryogenic use?
A: Full-thread allows uniform stress distribution and easier nut adjustment, preferred for flanged joints in cold service.
A: Full-thread allows uniform stress distribution and easier nut adjustment, preferred for flanged joints in cold service.
Q3: Do you provide third-party inspection or material test reports?
A: Yes. We offer EN 10204 3.1 MTCs, and can arrange SGS or BV inspection at buyer’s cost.
A: Yes. We offer EN 10204 3.1 MTCs, and can arrange SGS or BV inspection at buyer’s cost.
Q4: How is the rust-preventive oil applied – does it affect nut torque coefficients?
A: Oil film is thin and uniform; it slightly reduces friction, so we recommend recalibrating torque values per your lubricant specification.
A: Oil film is thin and uniform; it slightly reduces friction, so we recommend recalibrating torque values per your lubricant specification.
Q5: What is the MOQ and sample policy?
A: MOQ is 1 set, so you can qualify samples before volume orders.
A: MOQ is 1 set, so you can qualify samples before volume orders.
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