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

Quality Standard:
ASTM A 53 Standard Specification for Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and Seamless
ASTM A519 Seamless Carbon and Alloy Steel Mechanical Tubing
GB/T8162 Seamless Steel Tubes for Structural Purposes
JIS G3441 Alloy steel tubes for machine purposes
JIS G3444 Carbon steel tubes for general structural purposes
JIS G3445 Carbon steel tubes for machine structural purposes
DIN 2391 Precision cold drawn seamless steel tube
EN10305-1 Steel tubes for precision applications-Technical delivery conditions, Seamless cold drawn tubes
EN 10210 Hot finished structural hollow sections of non-alloy and fine grain steel

Steel Grade:
ASTM A 53: Grade A, Grade B, Grade C, Type F, Type E
ASTM A519: 1010-1045, 4130-4142, 5135
GB/T8162: 10, 20, 35, 45, 16Mn, 12CrMo, 15CrMo, 12Cr1MoV
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, STKM 15, STKM 16, STKM 17, STKM 18, STKM 19, STKM 20
DIN 2391: St30Si, St30Al, 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: 1/2" - 4"
Wall Thickness: Hot finish: 0.125" - 2.0"(3.18mm-50.8mm) Cold drawn: 0.085" - 0.675"(2.1mm-17.12mm)
Length: Random Length, Fixed Length, SRL, DRL

Heat treatment:
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/caps in both ends, Hexagonal bundles of max. 2,000kg with 8-10 steel strips, Two tags on each bundle, Wrapped in waterproof paper. Packed in bundles for 6” and below sizes.

Test:
Chemical Component Analysis, Mechanical Properties (Tensile strength, Yield strength, Elongation), Technical Properties (Flattening Test, Flaring Test, Bending Test, Hardness Test, Blow Test, Charpy Impact Test etc), Dimension Inspection.

We accept Third Party Inspection, such as SGS, BV, Lloyds, Moody etc.
Mill Test Certificate: EN 10204/3.1B
Supply ability: 20,000Ton/month
Minimum order quantity: 5 tons or by mutual consultation
Loading port: Tianjin, Shanghai or Qingdao
Payment: T/T or L/C
Delivery: within 7-15 days, or as per your requirement