Hot rolled for structural purpose Seamless steel tubes as per GB/T 8162
Torich produced by Hot rolled with carbon and alloy steel,Like 10,20,20Mn,25Mn,20Cr,40Cr 15CrMo 45Mn2 etc. as per standard GB/T 8162 applying in Mechanical contructure and general purpose of structure.
Detail spec:
Size range: OD 76-700mm WT 6-50mm L:3-12.5m
Material:Carbon steel:10,20,45,25Mn,Q295,Q345,40Mn2,20Cr,40Cr,15CrMo etc.
Alloy steel:40Mn2,20Cr,40Cr,15CrMo etc
If not specificate from customer ,We will as per below Tolerance .
OD +/-1%OD or 0.30mm
WT below 3mm :+15%S ,-10%S or +/-0.15mm
above 3mm:+12.5% Sor -10%S
Length below 6000mm:+10mm,0
above 6000mm:+15mm,0
