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JIS G3444 STK290 Weld Mild Steel Tubing , Round Furniture Steel Tubes 35mm Thick

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JIS G3444 STK290 Weld Mild Steel Tubing , Round Furniture Steel Tubes 35mm Thick

Country/Region china
City & Province jiangsu
Categories Copper

Product Details

 

JIS G3444 STK290 Weld Mild Steel Tubing , Round Furniture Steel Tubes 35mm Thick

 

 

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

 

 

Chemical composition,%:

 

Steel grade 

Chemical composition,%

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

 

 

 Mechanical Properties:

 

Mechanical 

properties

Tensile strength,

N/mm2

Yield strength,

N/mm2

Elongation,%

Bending property

Weld tensile 

strength,N/mm2

 

Longitudinal

Transverse

Angel of bending

ID

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:

 

Huacheng Pipe Making Company 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.

 

Factroy Pictures:

 

Pipe & Tube Processing

Factory Equipments:

 

Production Line:

Quality Control:

 

 

Steel Pipe & Tube Application:

Package:

Export Standard / Wooden Box

Main Certificates:

PED ISO BV TUV etc.

Main Customers:

 

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