Usage: Applicable to the general structure, mechanical structure withseamless steel tubes.

Quality Standard:
ASTM A 53 Standard Specification for Pipe, Steel, Blackand Hot-Dipped, Zinc-Coated, Welded and Seamless
ASTM A519 Seamless Carbonand Alloy Steel Mechanical Tubing
GB/T8162 Seamless Steel Tubes forStructural Purposes
JIS G3441 Alloy steel tubes for machine purposes
JISG3444 Carbon steel tubes for general structural purposes
JIS G3445 Carbonsteel tubes for machine structural purposes
DIN 2391 Seamless PrecisionSteel Tubes
EN10305 Steel tubes for precision applications. Technicaldelivery conditions. Seamless cold drawn tubes
EN 10210:Seamless structuralsteel pipes

Steel Grade:
ASTM A 53: Grade A, Grade B, Grade C, Type F, Type E
ASTMA519: 1010-1045, 4130-4142, 5135
GB/T8162: 10, 20, 35, 45, 16Mn, 12C rMo,15CrMo, 12C rl MoV
JIS G3441: SCM 415 TK, SCM 418 TK, SCM 420 TK, SCM 430 TK,SCM 435 TK, SCM 440 TK
JIS G3444: STKM 11A, STKM 12, STKM 13, STKM 14, STKM15, STKM 16, STKM 17, STKM 18
STKM 19, STKM 20
DIN 2391: St30Si, St30A1,St35, St45, St52
EN10305: E235, E355
EN 10210: S235JRH; S275J0H, S275J2H;S355J0H, S355J2H; S275NH, S355NH; S275NLH, S355NLH

Size:
Outer Diameter:Hot finish: 2" - 30",Cold drawn: 0.875" -18"
Wall Thickness:Hot finish: 0.250" - 4.00",Cold drawn:0.035" -0.875"
Length: Random Length, Fixed Length, SRL, DRL
Heattreatment:
Annealed: Bright annealed, , Spheroidize annealed
Normalized,Stress relieved, Cold finished, Quenched and Tempered
Delivery Condition :BKS, NBK,BK ,BKW, GBK(+A), NBK(+N), BK(+C)
Packing:Plastic plugs in bothends, Hexagonal bundles of max. 2,000kg with several steel strips, Two tags oneach bundle, Wrapped in waterproof paper, PVC sleeve, and sackcloth with severalsteel strips
Test:Chemical Component Analysis, Mechanical Properties(Ultimate tensile strength, Yield )
strength, Elongation), TechnicalProperties (Flattening Test, Flaring Test, Bending Test, Hardness Test, BlowTest, Impact Test etc), Exterior Size Inspection.
Mill Test Certificate: EN10204/3.1B