Welded types: seamless or welded.
Test:Chemical Analysis,Mechanical Properties,Technical Properties,Exterior Size Inspection,Hydrostatic,X-ray,Test,NDT test.
End finished:Beveled,square cut,threaded&coupled.
Technical Properties (Flattening Test, Bending Test, Blow Test, Impact Test.
Steel grades:A53,A106,A519,SA192,A179.
Gr.B,X42,X46,X56,X65,X70,X80 and more.
Materials
Carbon steel: ASTM/ASME A234 WPB\WPC
Alloy steel: ASTM/ASME A234 WP 1-WP 12-WP 11-WP 22-WP 5-WP 91-WP 911
Stainless steel: ASTM/ASME A403 WP 304-304L-304H-304LN-304N
ASTM/ASME A403 WP 316-316L-316H-316LN-316N-316Ti
ASTM/ASME A403 WP 321-321H ASTM/ASME A403 WP 347-347H
Low-temperature steel:ASTM/ASME A402 WPL 3-WPL 6
High performance: ASTM/ASME A860 WPHY 42-46-52-60-65-70