Seamless Steel Tube for Crane Boom

Grade and Manufacturing Specification of Seamless Steel Tube for Crane Boom
No. Grade Specification Executive Standard
Outer Diameter /mm Wall Thickness /mm Economical Length /m
1 20Mn2 42 ~ 127
42 ~ 114.3
73 ~ 180
68 ~ 260
168 ~ 273
4 ~ 20
4 ~ 12
4 ~ 22
10 ~ 35
6 ~ 35
6 ~ 12
6 ~ 12
6 ~ 12
6 ~ 12
6 ~ 12
Q/OHAD015 or Technical Protocol
2 HSM450
3 HSM450
4 HSM770
5 HSM890
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