Large diameter seamless steel pipe is pipes with an outer diameter 325mm-1220mm and wall thickness 10mm-200mm. Usually, the length of large diameter seamless pipe is 12m. It is made mainly by heat expanding technology, some by cold drawing.
In the market, these materials are often found as GK large diameter seamless steel pipe：10# 20# 35# 45# 16Mn 27SiMn 15CrMo 12Cr1MoV 10CrMo910 T91 P91 J55 K55 Q345 Cr5Mo2）20#、35#、45#、16Mn、27SiMn3）10#、20#、35#、45#、16Mn、27SiMn、12Cr1MoV、10CrMo910、15CrMo, etc.
GK Seamless steel tube standards series:
Seamless Steel Tube ASTM A210 Seamless Steel Tube ASTM A192 Alloy Steel Seamless Tube ASTM A213 Seamless Steel Pipe ASTM A53 Seamless Steel Tube ASTM A519 Seamless Steel Pipe ASTM A106 Seamless Steel Tube ASTM A213 Seamless Steel Tube ASTM A179
ASTM A106 ASTM A519 ASTM A53 ASTM A192
Seamless Steel Tube DIN17175 Seamless Steel Tube DIN1629
Seamless Steel Tube EN10216-1 Seamless Steel Tube En10216-2, etc
GK Main Application:
Gas and oil
1.Chemical composition, process performance, mechanics performance, size tolerance, Delivery status, water pressure and flaw detection.
2.Composition and Mechanical properties of commonly used carbon steel alloy steel.
2. Seemless steel pipe, welded pipe, etc.
3. A series international universal series, domestic series.