ISO Certificate STC 370,STC 440 JIS G3473 Carbon Steel Tube for Hydraulic Cylinder

Delivery Time:25~35days
Certification:ISO9001 14001 BV TUV PED DNV etc

ISO Certificate STC 370,STC 440 JIS G3473 Carbon Steel Tube for Hydraulic Cylinder

Quick Detail:

Standards: JIS G3473

Grade: STC 370,STC 440,STC 510A,STC 510B,STC 540,STC 590,STC 590A,STC 590B 

Outer Dimensions: 6mm ~ 350mm

Wall Thickness: 0.8mm ~ 35mm

Length: max 24000mm

Description:

Standards: JIS G3473

Grade: STC 370,STC 440,STC 510A,STC 510B,STC 540,STC 590,STC 590A,STC 590B 

Size (mm):

Outer Dimensions: 6mm ~ 350mm

Wall Thickness: 0.8mm ~ 35mm

Length: max 24000mm

Application: JIS G3473 carbon steel tubes for cylinder barrels, 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

1. Scope

This Japanese Industrial Standard specifies the carbon steel tubes, hereinafter referred to as the \"tubes\", 

used for manufacturing cylinder barrels of pistion type hydraulic cylinders and pneumatic cylinders whose internal surfaces anr furnished by cutting or honing

2. Grade and Designation

The tubes shall be classified into 7 grades, and their designations shall be as given in Table 1.

Table 1 Designation of Grade

Designation of Grade	Traditional symbol
STC 370 STC 440 STC 510A STC 510B STC 540 STC 590A STC 590B	STC 38 STC 45 STC 52A STC 52B STC 55 STC 60A STC 60B

3.Chemical Composition

The tube shall be tested in accordance with the resulting ladle analysis values shall conform to Table 2.

Designation of grade	C	Si	Mn	P	S	Nb or V
STC 370	0.25max	0.35max	0.30-0.90	0.040max	0.040max	-
STC 440	0.25max	0.35max	0.30-0.90	0.040max	0.040max	-
STC 510A	0.25max	0.35max	0.30-0.90	0.040max	0.040max	-
STC 510B	0.25max	0.55max	1.50max	0.040max	0.040max	-
STC 540	0.25max	0.55max	1.60max	0.040max	0.040max	0.15max
STC 590A	0.25max	0.35max	0.30-0.90	0.040max	0.040max	-