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1.Precise roundness
2.Smooth inner and outer walls
3.World's leading production equipment
4.Minor discrepancy in diameter and thickness
5.Physical and chemical tests before delivery to ensure fine pipes
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The seamless black steel pipe is a circular pipe with a hollow section and no seams around the pipe. The main material of seamless steel pipe is carbon steel, alloy steel, stainless steel ingot or solid tube blank. GK black seamless steel pipes is cast from several grades of ductile or malleable iron and produced after material by hot rolling, cold rolling or cold drawing.
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
Petrochemical industry
Water transportation
Structure steel
Scaffolding pipe
GK Advantages:
1, Our own factories and design team
2, Strict inspection rule to ensure the pipe high quality
3, Customization service to meet clients’ various requirements
