Subgroup: 21 B 3

21 B 3

Material 21 B 3
Country / Region 法国
Standard AFNOR NF


Item Standard Code Detail
1 NF A35-564 -
Iron and steel products. Special steels bars and wire rod for cold forming
化学成分 力学性能 热处理
2 NF M 81-636 -
Mining equipment. High tensile steel chains round link for chain conveyors and coal plough. Specifications. Acceptance testing
化学成分 热处理
3 NF A37-503 -
Cold-rolled strip. Non alloy and alloy steels for carburizing. Grades
化学成分 力学性能 热处理
4 NF A35-566 -
Iron and steel products. Chain steels. Grades and types
化学成分 力学性能 热处理
5 NF A35-557 -
Iron and steel. Heat treatable steels for externally threaded, high performance fasteners for engineering purposes
化学成分 力学性能 热处理
6 NF A35-551 -
表面硬化钢 - 交货技术条件
化学成分 力学性能 热处理


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