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JIS G3445 Automotive Steel Tubes ERW Welded Carbon Steel Tube For Auto Exhaust System

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JIS G3445 Automotive Steel Tubes ERW Welded Carbon Steel Tube For Auto Exhaust System

Brand Name : TORICH

Model Number : JIS G3445

Certification : SO9001:2008 ，TS16949

Place of Origin : China

MOQ : 10 ton

Payment Terms : T/T, L/C, D/A, D/P, Western Union, MoneyGram

Supply Ability : 6000ton

Delivery Time : 30-45 days

Packaging Details : In bundles with seaworthy packing

Product name : Auto Exhaust Welded Steel Tube

Standard : JIS G3445

Material : STKM11A STKM13A

Type : Welded

Terms Of Trade : FOB or CIF

Brand : TORICH

Transportation : Ocean, air

Certificate : ISO9001, TS16949

End protector : Plain

MTC : En10204.3.2B

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JIS G3445 STKM11A STKM13A ERW Welded Carbon Steel Tube For Auto Exhaust System

Size Range:
OD: 5.0-200mm
WT:0.5-20mm
Length: max 7000mm

Manufacture:

Tubes are made by welded process.

Welded tubing shall be made from flat-rolled steel by the electric-resistance welding or electric-fusion welding process.

Delivery Condition:

HR: hot rolled

CW: cold rolled

SR: stress relieved

A: annealed

N: normalized

Steel Grade/Steel Material:

Chemical Composition unit:% max
Grade Symbol of grade C Si Mn P S Nb or V
11 A STKM11A 0.12 0.35 0.60 0.040 0.040 -
12 A STKM12A 0.20 0.35 0.60 0.040 0.040 -
B STKM12B
C STKM12C
13 A STKM13A 0.25 0.35 0.30-0.90 0.040 0.040 -
B STKM13B
C STKM13C
14 A STKM14A 0.30 0.35 0.30-1.00 0.040 0.040 -
B STKM14B
C STKM14C
15 A STKM15A 0.25-0.35 0.35 0.30-1.00 0.040 0.040 -
C STKM15C
16 A STKM16A 0.35-0.45 0.40 0.40-1.00 0.040 0.040 -
C STKM16C
17 A STKM17A 0.45-0.55 0.40 0.40-1.00 0.040 0.040 -
C STKM17C
18 A STKM18A 0.18 0.55 1.50 0.040 0.040 -
B STKM18B
C STKM18C
19 A STKM19A 0.25 0.55 1.50 0.040 0.040 -
C STKM19C
20 A STKM20A 0.25 0.55 1.60 0.040 0.040 0.15
Remarks:
1. For the tubes of Grade 15 made by electric resistance welded, the lower limit of C may be altered by agreement between the purchaser and the manufacturer.
2. For the tubes of Grade 20, Nb in combination with V may be added. In the case, the maximum content of Nb + V shall be 0.15%.
3. If necessary, alloying elements other than those in the above table may be added.

Mechanical Properties

Mechanical Properties min
Grade Symbol of grade

Tensile strength

N/mm2

Yield point or proof strength

N/mm2

Elongation

%
11 A STKM11A 290 - 35
12 A STKM12A 340 175 35
B STKM12B 390 275 25
C STKM12C 470 355 20
13 A STKM13A 370 215 30
B STKM13B 440 305 20
C STKM13C 510 380 15
14 A STKM14A 410 245 25
B STKM14B 500 355 15
C STKM14C 550 410 15
15 A STKM15A 470 275 22
C STKM15C 580 430 12
16 A STKM16A 510 325 20
C STKM16C 620 460 12
17 A STKM17A 550 345 20
C STKM17C 650 480 10
18 A STKM18A 440 275 25
B STKM18B 490 315 23
C STKM18C 510 380 15
19 A STKM19A 490 315 23
C STKM19C 550 410 15
20 A STKM20A 540 390 23

Remarks:
1. As for the tubes of outside diameter of 40mm or under, the elongation value in above table shall not be applied. However, the test result shall be recorder. Further, the elongation may be specified under the agreement between the purchaser and the manufacturer.

2. 1 N/mm2 = 1MPa

JIS G3445 Automotive Steel Tubes ERW Welded Carbon Steel Tube For Auto Exhaust System

JIS G3445 Automotive Steel Tubes ERW Welded Carbon Steel Tube For Auto Exhaust System

Packing: in bundles, in wooden boxes.





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low carbon steel pipe

      

steel mechanical tubing

      
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