Steel tube

Standards and specifications by country

Specification

Specification Alloy
Europe  
EN 3680 321/347
France  
Tu52B E355  
25CrMo4 4130
Z5CN18-10 304
Z10CNT18-10 321
Z10CNNb18-11 347
ASN-A 3288 21-6-9
Germany  
WL 1.4301 304
WL 1.4306 304
WL 1.4541 321
WL 1.4550 321

Alloy

Specification Alloy
UK  
BS T45  
BS T60 4130
BS T66 347
BS T67 321
BS T68 347
BS T72 347
BS T73 321
MSRR 6524 347
MSRR 6598 21-6-9
USA  
AMS 5556 347
AMS 5557 321
AMS 5561 21-6-9
AMS 5562 21-6-9

Company

Specification Alloy
AMS 5566 304
AMS 5567 304
AMS 5570 321
AMS 5571 347
AMS 5575 347
AMS 6360 4130
AMS 6371 4130
MIL-T-6736 4130
MIL-T-6736 norm 4130
MIL-T-6737 347
MIL-T- 6845 304
MIL-T-8504 304
MIL-T-8606 321
MIL-T-8606 347
BMS 7-185 21-6-9