JIS G3444 Stk290, Stk400, Stk500 , Stk490, Stk540 Structural Steel Pipe

China JIS G3444 Stk290, Stk400, Stk500, Stk490, Stk540 Structural Steel Pipe, Find details about China Stk490 Steel Pipe, Stk290 Steel Pipe from JIS G3444 Stk290, Stk400, Stk500, Stk490, Stk540 Structural Steel Pipe

Basic Info.

Model NO.

KM-71

Size

6-60mm

1-12mm

Length

1m-12m

Packaging Detail

Standard Sea-Worthy Package

Loading Port

Chinese Main Port

Delivery Time

30 Days Ex Mill

Trademark

Kingmetal

Transport Package

Standard Sea-Worthy Package

Specification

6-60mm

Origin

Chinese Main Port

Model NO.

KM-71

Size

6-60mm

1-12mm

Length

1m-12m

Packaging Detail

Standard Sea-Worthy Package

Loading Port

Chinese Main Port

Delivery Time

30 Days Ex Mill

Trademark

Kingmetal

Transport Package

Standard Sea-Worthy Package

Specification

6-60mm

Origin

Chinese Main Port

Product Desciption

JIS G3444 STK290,STK400,STK500,STK490,STK540 structural steel pipe

Quick Detail:

Standards: JIS G3444

Grade: STK290, STK400, STK500, STK490, STK540 ; STK30, STK41,STK,50,STK 51,STK55

Outer Dimensions: 6mm ~ 350mm

Wall Thickness: 0.8mm ~ 35mm

Length: max 24000mm

Description:

Standards: JIS G3444

Grade: STK290, STK400, STK500, STK490, STK540

Size (mm):

Outer Dimensions: 6mm ~ 350mm

Wall Thickness: 0.8mm ~ 35 mm

Length: max 24000mm

Application: Tubes used for machinery, automobiles, bicycles, furniture, appliances and other machine parts.

Packing: Beveled/black painting/ plastic caps/ in bundles/ steel strips/ wooden protection
Inspection and Test: Chemical Composition Inspection, Mechanical Properties Test(Tensile Strength, Yield Strength,Elongation, Flaring, Flattening, Bending, Hardness, Impact Test),Surface and Dimension Test,Nodestructive Test, Hydrostatic Test.
Surface treatment:Oil-dip, Varnish, Passivation, Phosphating, Shot Blasting
Mark: As requested.

Delivery Condition:Annealed, Normalized, Normalized and Tempered

JIS G3444 Chemical composition,%:

Steel grade	Chemical composition,%
Steel grade	C	Si	Mn	P	S
STK290	-	-	-	≤0.050	≤0.050
STK400	≤0.025	-	-	≤0.040	≤0.040
STK500	≤0.24	≤0.35	0.30-1.30	≤0.040	≤0.040
STK490	≤0.18	≤0.55	≤1.50	≤0.040	≤0.040
STK540	≤0.23	≤0.55	≤1.5	≤0.040	≤0.040

JIS G3444 Mechanical Properties:

Mechanical properties	Tensile strength, N/mm2	Yield strength, N/mm2	Elongation,%		Bending property		Weld tensile strength,N/mm2
Mechanical properties	Tensile strength, N/mm2	Yield strength, N/mm2	Longitudinal	Transverse	Angel of bending	ID	Weld tensile strength,N/mm2
OD	All	All	≥40mm		≤50mm		≥350mm
STK290	≥290	-	≥35	≥25	90o	6D	≥290
STK400	≥400	≥235	≥23	≥18	90o	6D	≥400
STK500	≥500	≥355	≥15	≥10	90o	6D	≥500
STK490	≥490	≥315	≥23	≥18	90o	6D	≥490
STK540	≥540	≥390	≥20	≥16	90o	6D	≥540

Applications:

Mainly for general structural purpose.

Tube also be widely used for machinery, automobiles, bicycles, furniture, appliances and other machine parts.

Competitive Advantage:

Kingmetal steel is one of the largest seamless steel pipe manufacturers in China.We've passed API 5L,API 5CT, PED, BV, TUV certification and ISO quality system certification.With good quality and competitive price, we believe we could be your reliable supplier.