40Mn2 20Cr 40Cr 15CrMo Carbon Steel / Alloy Steel Hot Rolled Steel Tube

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