Name: Carbon Steel Pipes for High Pressure Service Standard: JIS G3455-STS410, KS D3564-SPPH42, DIN1630-St44.4, ASTM A524-GrI,II, NF A49-210-Gr.TU42B, ISO 2604/2-75-TS9 Product particular communication: Gr.STS410: C:0.30 Max. Si: 0.10~0.35 Mn: 0.30~1.40 P: 0.035 Max. S: 0.035 Max. 1) Tube dimension(OD�?WT mm) as below: 17.3*3.2; 21.7*2.8; 21.7*3.7; 27.2*3.9; 34*4.5; 42.7*4.9; 42.7*5.8; 48.6*6.4; 2) Accurate tolerance, Smooth surface, Uniform mechanical property(Mechanical Properties equilibrium); 3) Heat treatment: Non-Oxidation,Normalizing or Bright Annealing; 4) Mechanical properties: Tensile: > 450 Mpa; Elongation: > 25% (25%-30% is better) 5) Plastic plugs or caps on both ends as required; 6) Packaging Type: Round, Square, Rectangle, Hexagon. Streamline, etc; 7) Relevant Test: Chemical Component Analysis, Mechanical Properties(Ultimate tensile strength, Yield strength, Elongation), Technics Properties(Flattening Test, Flaring Test, Bending Test, Hardness Test, Blow Test, etc), Exterior Size Inspection, Nondestructive Test, Hydrostatic Test; 8) Main Customers: Hyundai, VOLVO, SANY,Doosan, etc. 9) Origin: China