JIS G3445 Carbon Steel Tubes

1.Material Grade:STKM 11A 12A 12B 12C 13A 13B 13C 14A 14B 14C 15A 15C ect
2.O.D.:6-380mm
3.W.T.:1-40mm
4.Length:5.8m,6m,11.8m,12m or customer request.
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Product Details

JIS G3445 Carbon Steel Tubes conforms to the JIS G3445 standard, which is a kind of Japanese standard, which mainly regulates the outer diameter and size of carbon steel pipe for machining. Suitable for carbon steel pipes for mechanical parts such as machinery, automobiles, bicycles, furniture, home appliances, etc.
Surface Treatment:

Bared
2.Black Painted (varnish coating)
3.Galvanized
4.Oiled
5.According to customers.

Standard

Steel Grade

Chemical Composition(%)

C

Si

Mn

P

S

JIS G3445

STKM11A

≤0.12

≤0.35

≤0.60

≤0.040

≤0.040

STKM12A

≤0.20

≤0.35

≤0.60

≤0.040

≤0.040

STKM12B

STKM12C

STKM13A

≤0.25

≤0.35

0.30-0.90

≤0.040

≤0.040

STKM13B

STKM13C

STKM14A

≤0.30

≤0.35

0.30-1.00

≤0.040

≤0.040

STKM14B

STKM14C

 

Standard

Steel Grade

Mechanical Properties

Tensile Strength(Mpa)

Yield Strength(Mpa)

Elongation(%)

JIS G3445

STKM11A

≥295

\

≥35

STKM12A

≥345

≥175

≥35

STKM12B

≥390

≥275

≥25

STKM12C

≥470

≥355

≥20

STKM13A

≥375

≥215

≥30

STKM13B

≥440

≥305

≥20

STKM13C

≥510

≥380

≥15

STKM14A

≥410

≥245

≥25

STKM14B

≥500

≥355

≥15

STKM14C

≥550

≥410

≥15

 The process flow:

Cold drawn (rolled) carbon steel seamless pipe: a perforated tube round → heating → → → annealing → pickling → Heading oiled (copper) → multi-pass drawing (cold) → blank tube straightening → heat treatment → → hydrostatic testing (testing) → storage → labeled 

JIS G3445 Carbon Steel Tubes used for Gas Cylinder Applications, Oil Cylinders, Telescopic Cylinders .we have the advantages about Short delivery time,Quality assurance,Competitive price,Superior Service.If you require further information or you do not see what yo need in our web,please do not hesitate to contact us. Our customer service specialists will be happy to help you.info@jiade-group.com

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