cold rolled precision seamless pipe and tube

Process:  Cold Rolled

Standard:EN 10305-1, STKM SERIES,EN 10305-4, JIS G3445, DIN 2391, BS 6323, GOST 8734-75, IS 3074 etc.

Tolerance:

1. OD/ID:+/-0.1mm

2.Straightness:0.3mm/m

Steel Grade:

Material: carbon steel (A53, A106, A1045,St37, St45-8, St42-2, CK45 etc)
Alloy steel (St52, A210-C, J55SAE5120, SAE5140,SAE5120 etc.)
Standard: GB/T 8162-2008, GB/T 8163-2008, GB/T3639-2009 etc

ASTM A213 ——Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater,and Heat-Exchanger Tubes
ASTM A335 ——Seamless Ferritic Alloy-Steel Pipe for High-Temperature Service
JIS G3458 ——Alloy Steel Pipes (STPA 12/ 20/ 22/ 23/ 24/ 25/ 26)
JIS G3462 ——Alloy Steel for Boiler and Heat Exchanger Tubes (STBA12/ 13/ 20/ 22)
JIS G3467 ——Steel Tubes for Fired Heater (STF 410/STFA 12/ 22/ 23/ 24/ 25/ 26)
DIN17175-79Ⅲ——Electrical Resistance Or Induction Welded Steel Tubes for Elevated Temperature

Delivery Condition: Cold rolled, Stress Relieved,  Annealed, Normalized.