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JIS G3445 STKM11A, STKM 12A, STKM 12C, STKM 13A Cold Drawn Seamless Steel Tube

Basic Information
Place of Origin: Jiangsu China (Mainland)
Brand Name: Wuxi Sylaith
Certification: SGS
Model Number: STK30 STKM11A STKM112B STKM112C
Minimum Order Quantity: 1MT
Price: Negotiable
Packaging Details: Standard waterproof package
Delivery Time: 3-15 days
Payment Terms: T/T, L/C
Supply Ability: 50000MT/Year
Detail Information
Size: 6mm-340mm Material: Carbon Steel|Alloy Steel
Wall Thickness: 1mm-50mm Shape: Round
Production Type: Cold Drawn, Cold Rolled Or Hot Rolled. Grade: STKM 11A, STKM 12A, STKM 12C, STKM 12B, STKM 13A, STKM 13B, STKM 13C, STKM 15A, STKM 17A,

Product Description

 
 
JIS G3445 STKM11A, STKM 12A, STKM 12C, STKM 13A Cold Drawn Seamless Steel Tube
 
Product Description

 

Standard: JIS G3445

 

Size: 6mm-340mm

W.T.: 1mm-50mm

Shape: Round

Technique: Cold drawn, cold rolled or hot rolled.

Length: Single random length/ Double random length or as customer’s actual request max length is 10m

Grade: STKM 11A, STKM 12A, STKM 12C, STKM 12B, STKM 13A, STKM 13B, STKM 13C, STKM 15A, STKM 17A

Marking

Each tube having passed the inspection shall be legibly marked with the following items, the order of arranging the items is not specified.

However, for smaller tubes or on a request from the purchaser, tubes may be bundled together and marked for each bundle by suitable means.

(1) Designation of grade

(2) Letter symbol indicating the manufacturing process

Note:

§ Mill test certificates will be issued according to EN10204.3

§ The tubes Shall be Seamless or Welded.

Protection and Packing:

§ Packed in wooden box or bundles protected with plastic paper, and suitably protected for sea-worthily delivery or as requested.

§ The tubes shall be delivered with a temporary corrosion protection. The type of protection shall be at the discretion of the manufacturer

 

 

World standard Comparative with JIS G3445

 

NUBER

GRADE

NUBER

GRADE

NUBER

GRADE

NUBER

GRADE

 

D 3517

 

Grade 11 A

 

STKM 11 A

A513

MT1010

 

G-3445

 

STKM11A

 

-

 

-

A519

MT1010

 

 

 

Grade 12A

 

STKM 12 A

A513

MT1015

 

 

 

STKM12A

 

980

 

CDS-3

A519

MT1015

 

Grade 12 B

STKM 12 B

-

-

 

STKM12B

-

-

 

 

 

Grade 12C

 

STKM 12C

A512

 

MT1015

 

 

 

STKM12C

 

-

 

-

A513

 

 

 

 

 

 

Grade 13 A

 

 

STKM 13 A

A512

MT

1025

 

 

 

 

 

 

STKM13A

 

 

-

 

 

-

A513

MTX1025

A519

MT

1025

 

Grade13B

STKM 13 B

-

-

 

STKM13B

980

CDS-4

 

Grade13 C

STKM 13 C

-

-

 

STKM13C

-

-

 

 

 

Grade14 A

 

STKM 14 A

A513

MT1030

 

 

 

STKM14A

 

1717

CDS-

103

A519

MT1030

 

Grade14 B

STKM 14 B

-

-

 

STKM14B

-

-

 

Grade14 C

STKM 14 C

-

-

 

STKM14C

-

-

 

 

Grade15 A

STKM 15 A

A513

MT1033

 

 

STKM15A

1717

CDS-

105

 

Grade15 C

STKM 15 C

-

-

 

STKM15C

-

-

 

Grade16 A

STKM 16 A

A519

MT1040

 

STKM16A

980

CDS-5

 

Grade16 C

STKM 16 C

-

-

 

STKM16C

-

-

 

 

 

 

Grade17 A

 

STKM 17 A

 

A519

 

MT1050

 

 

 

 

STKM17A

980

CDS-7

1717

CDS-

107

 

Grade17 C

STKM 17 C

-

-

 

STKM17B

-

-

 

Grade18 A

STKM 18 A

A519

MT1524

 

STKM18A

980

CDS-9

 

Grade18 B

STKM 18 B

-

-

 

STKM18B

-

-

 

Grade18 C

STKM 18 C

-

-

 

STKM18C

-

-

 

Grade19 A

STKM 19 A

-

-

 

-

-

-

 

Grade19 C

STKM 19 C

-

-

 

-

-

-

 

Grade20 A

STKM 20 A

-

-

 

-

-

-

 

Chemical Composition

 

 

Grade

Unit %
C Si Mn P S Nb or V
STKM 11A 0.12 max. 0.35 max. 0.60 max.

0.040

max.

0.040

max.

-
STKM 12A

 

0.20 max.

 

0.35 max.

 

0.60 max.

 

0.040

max.

 

0.040

max.

 

-

STKM 12B
STKM 12C
STKM 13A

 

0.25 max.

 

0.35 max.

 

0.30~0.90

 

0.040

max.

 

0.040

max.

 

-

STKM 13B
STKM 13C
STKM 14A

 

0.30 max.

 

0.35 max.

 

0.30~1.00

 

0.040

max.

 

0.040

max.

 

-

STKM 14B
STKM 14C
STKM 15A

 

0.25~0.35

 

0.35 max.

 

0.30~1.00

0.040

max.

0.040

max.

 

-

STKM 15C
STKM 16A

 

0.35~0.45

 

0.40 max.

 

0.40~1.00

0.040

max.

0.040

max.

 

-

STKM 16C
STKM 17A

 

0.45~0.55

 

0.40 max.

 

0.40~1.00

0.040

max.

0.040

max.

 

-

STKM 17C
STKM 18A

 

0.18 max.

 

0.55 max.

 

1.50 max.

 

0.040

max.

 

0.040

max.

 

-

STKM 18B
STKM 18C
STKM 19A

 

0.25 max.

 

0.55 max.

 

1.50 max.

0.040

max.

0.040

max.

 

-

STKM 19C
STKM 20A 0.25 max. 0.55 max. 1.60 max.

0.040

max.

0.040

max.

0.15

max.

 

Mechanical Properties

 

Designation     Elongation %   Bending strength
 

 

 

 

 

Tensile strength N/П

{kgf/П}

 

 

 

Yield point or proof N/П

{kgf/П}

 

 

Flattening strength Distance between flat plates (H)

(D is outside dia. of the tube)

 

No. 4,

 

No. 11

 

No. 12

 

test pieces Longitudinal direction

No. 4,

 

No. 5

test pieces Transverse direction

 

 

 

 

 

 

Bend angle

Inside radius

 

 

(D is outside dia. of the tube)

STKM11A

290{30}

min.

- 35 min. 30 min. 1/2 D 180 4 D
STKM12A

340{35}

min.

175{18}

min.

35 min. 30 min. 2/3 D 90 6 D
STKM12B

390{40}

min.

275{28}

min.

25 min. 20 min. 2/3 D 90 6 D
STKM12C

470{48}

min.

355{36}

min.

20 min. 15 min. - - -

 

STKM13A

370{38}

min.

215{22}

min.

 

30 min.

 

25 min.

 

2/3 D

 

90

 

6 D

 

STKM13B

440{45}

min.

305{31}

min.

 

20 min.

 

15 min.

 

3/4 D

 

90

 

6 D

 

STKM13C

510{52}

min.

380{39}

min.

 

15 min.

 

10 min.

 

-

 

-

 

-

 

STKM14A

410{42}

min.

245{25}

min.

 

25 min.

 

20 min.

 

3/4 D

 

90

 

6 D

STKM14B

500{51}

min.

355{36}

min.

15 min. 10 min. 7/8 D 90 8 D

 

STKM14C

550{56}

min.

410{42}

min.

 

15 min.

 

10 min.

 

-

 

-

 

-

 

STKM15A

470{48}

min.

275{28}

min.

 

22 min.

 

17 min.

 

3/4 D

 

90

 

6 D

 

STKM15C

580{59}

min.

430{44}

min.

 

12 min.

 

7 min.

 

-

 

-

 

-

 

STKM16A

510{52}

min.

325{33}

min.

 

20 min.

 

15 min.

 

7/8 D

 

90

 

8 D

 

STKM16C

620{63}

min.

460{47}

min.

 

12 min.

 

7 min.

 

-

 

-

 

-

 

STKM17A

550{56}

min.

345{35}

min.

 

20 min.

 

15 min.

 

7/8 D

 

90

 

8 D

 

STKM17C

650{66}

min.

480{49}

min.

 

10 min.

 

5 min.

 

-

 

-

 

-

 

STKM18A

440{45}

min.

275{28}

min.

 

25 min.

 

20 min.

 

7/8 D

 

90

 

6 D

 

STKM18B

490{50}

min.

315{32}

min.

 

23 min.

 

18 min.

 

7/8 D

 

90

 

8 D

STKM18C

510{52}

min.

380{39}

min.

15 min. 10 min. - - -
STKM19A

490{50}

min.

315{32}

min.

23 min. 18 min. 7/8 D 90 6 D
STKM19C

550{56}

min.

410{42}

min.

15 min. 10 min. - - -
STKM20A

540{55}

min.

390{40}

min.

23 min. 18 min. 7/8 D 90 6 D

 

Appearance

 

⚫ The tubes shall be practically straight. and the two ends shall be at right angles to the axis of the tube

⚫ The tubes shall be free from defects detrimental to practical use.

⚫ The surface finish of the tubes, when especially specified shall be agreed upon by the purchaser and the manufacturer.

 

Tolerance on Outside Diameter

 

Division Tolerances on outside diameter
No. 1 Under 50mm ±0.5mm
  50mm or over ±1%
No. 2 Under 50mm ±0.25mm
50mm or over ±0.5%

 

 

 

 

No. 3

Under 25mm ±0.12mm
25mm or over to and excl. 40mm ±0.15mm
40mm or over to and excl. 50mm ±0.18mm
50mm or over to and excl. 60mm ±0.20mm
60mm or over to and excl. 70mm ±0.23mm
70mm or over to and excl. 80mm ±0.25mm
80mm or over to and excl. 90mm ±0.30mm
90mm or over to and excl.100mm ±0.40mm
100mm or over ±0.50%

 

Tolerance on Thickness

 

Division Tolerances on wall thickness

 

 

No. 1

Under 4mm
+0.6mm
-0.5mm
4mm or over
15%
-12.50%

 

No. 2

Under 3mm
±0.3mm
3mm or over

 

Detailed Photo
 

 JIS G3445 STKM11A, STKM 12A, STKM 12C, STKM 13A Cold Drawn Seamless Steel Tube 0
 
Factroy Pictures


JIS G3445 STKM11A, STKM 12A, STKM 12C, STKM 13A Cold Drawn Seamless Steel Tube 1
 
Pipe & Tube Processing


JIS G3445 STKM11A, STKM 12A, STKM 12C, STKM 13A Cold Drawn Seamless Steel Tube 2
 
Application
 

STKM 11A Seamless tubes

 
JIS G3445 STKM 11A, STKM 12A, STKM 12C, STKM 13A, STKM 13C, STKM 15A, STKM 15C, STKM 17A, STKM
17C carbon steel tubes used for machinery, automobiles, bicycles, furniture, appliances and other machine parts.
 
 
Packaging & Shipping


JIS G3445 STKM11A, STKM 12A, STKM 12C, STKM 13A Cold Drawn Seamless Steel Tube 3JIS G3445 STKM11A, STKM 12A, STKM 12C, STKM 13A Cold Drawn Seamless Steel Tube 4
 
Certificates

JIS G3445 STKM11A, STKM 12A, STKM 12C, STKM 13A Cold Drawn Seamless Steel Tube 5
FAQ
 
Q1: ARE YOU FACTORY OR TRADER?
A1: Wuxi Sylaith Special Steel Co.,Ltd is a manufacturer of steel pipe and tube since 2010. We've gained our Export Right and become an integrated company of industry and trade in order to satisfy buyer's multi-request on different material and products.
 
Q2: WHICH MATERIAL/PRODUCTS YOU CAN PROVIDE?
A2: Seamless Stainless Steel Pipe / Tube, Seamless Carbon Stainless Steel Pipe /Tube,Galvanized Steel Tube witn any Shape and Welded pipes can also be available
 
Q3: HOW TO GET A SAMPLE?
A3: FREE samples are available for your checking and testing. And to get free samples, you need to send us you detailed receiving address (including post code) and your DHL/FedEx/UPS account for collecting samples, courier cost will be paid in your side.
 
Q4. CAN YOU PRODUCE THE PRODUCTS ACCORDING TO MY OWN DRAWINGS?
A4: Yes, we can produce the products according to your drawings that will be most satisfy you.
 
Q5: HOW TO VISIT YOUR FACTORY?
A5: Most of the main cities have flights to Shanghai; you can take flight to Shanghai Putong/Hongqiao International Airport.
If you come from Hongkong, it will take 2 hours by flight (every day 5 flight around noon time).
 

Contact Details
Fanny

Phone Number : 86-13338118310

WhatsApp : +8613338118310