Yaluo (ATM) customized special fasteners -1.4021/20Cr13/ASTM420/UNS S42000/bolts/nuts, this fastener has good corrosion resistance and is suitable for industries such as marine engineering and petrochemicals. The fastener specifications and strength can be customized, and it supports processing according to drawings.
Fastener Name: 1.4021/20Cr13/ASTM420/UNS S42000/Bolt/Nut
Brand: China: GB 20Cr13 bolts and nuts, ISC S42020 bolts and nuts; USA: ASTM420 bolts and nuts UNS S42000 bolts and nuts; Germany: 1.4021 bolts and nuts
Corresponding standard: GB/T 3098.24-2020 Mechanical Properties of Fasteners Stainless Steel and Nickel Alloy Bolts, Screws, Studs and Nuts for High Temperature Use
Classification: Martensitic Stainless Steel
Performance: Corrosion resistance
Tag: Martensitic Stainless Steel
Fastener Description:
① This section specifies the mechanical performance requirements for bolts, screws, studs, and nuts made of corrosion-resistant stainless steel and nickel alloys, used under high temperature to 800 ℃ conditions, when tested at ambient temperatures ranging from 10 ℃ to 35 ℃.
② This section specifies the performance of three types of fasteners: martensitic stainless steel, austenitic precipitation hardened stainless steel, and nickel alloy
③ Fasteners applicable to this section:
Ordinary threads that comply with GB/T 192 regulations;
One diameter and pitch combination that complies with GB 193 regulations;
Comply with the tolerances specified in GB/T 197 and GB/T 45;
- Coarse thread M3~M39 Fine thread M8 × 1~M39 × 3;
Fasteners with full load-bearing capacity of any shape.
④ Marking system
All stainless steel and nickel alloys specified in this section belong to three different categories:
Martensitic stainless steel: CH0, CH1, CH2, V, VH, VW;
Austenitic precipitation hardening stainless steel: SD;
Nickel alloys: SB and 718.
1.4021/20Cr13/S42020/ASTM420/UNS S42000 Bolt/Nut Chemical Element Cost Content (%)
1.4021/20Cr13/S42020/ASTM420/UNS S42000 Bolt/Nut Physical Properties:
1.4021/ 20Cr13/ S42020 / ASTM420/ UNS S42000螺栓/螺母近似牌号对照表：
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