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Stainless Steel Clad Pipes for Structural Purpose GB/T 18704 304

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Stainless Steel Clad Pipes for Structural Purpose GB/T 18704 304

Brand Name : TORICH

Model Number : GB/T 18704

Certification : ISO 9001 ISO 14001 TS 16949

Place of Origin : China

MOQ : 3 Ton

Price : negotiable

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

Supply Ability : 40000 Ton/Year

Delivery Time : 45 days

Packaging Details : Packing in wooden box，hexagonal bundles or other seaworthy ways.

Product Name : Stainless Steel Clad Pipes for Structural Purpose GB/T 18704

Material : TP304 , 304

Surface : Polishing

Application : Structural purpose

Shape : Round

OD : 4-1200mm

WT : 0.3-200mm

Length : 1-8m

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Stainless Steel Clad Pipes for Structural Purpose GB/T 18704

Spec:
Material:TP304 , 304
Size Range:OD:4-1200mm
WT:0.3-200mm
General Length:1-8m
Tolerance:
According to the following tables or customers’ request.

Tolerance of OD

Surface delivery condition Nominal outside diameter Tolerance

Polishing,Polish
(SB,SP)

 ≤25 ±0.25
＞25~40 ±0.30
＞40~50 ±0.35
＞50~60 ±0.40
＞60~70 ±0.50
＞70~80 ±0.60
＞80 ±1％D
Unpolished,Sand blasting(SNB,SS) ≤25 ±0.30
＞25~50 ±0.40
＞50 ±1.0％D

Tolerance of WT

Wall thickness(S) Tolerance(high-grade) Tolerance(medium grade)
≥0.8~2.0 ±0.10 ±0.20
＞2.0~3.0 ±0.15 ±0.30
＞3.0 ±5％S ±10％S


Chemical composition

No. Unified digital code New steel grade Old steel grade Chemical composition
C Si Mn P S Ni Cr N
1 S35350 12Cr17Mn6Ni5N 1Cr17Mn6Ni5N ≤0.15 ≤1.00 5.50~7.50 ≤0.050 ≤0.030 3.50~5.50 16.00~18.00 0.05~0.25
2 S35450 12Cr18Mn9Ni5N 1Cr18Mn8Ni5N ≤0.15 ≤1.00 7.50~10.0 ≤0.050 ≤0.030 4.00~6.00 17.00~19.00 0.05~0.25
3 S30210 12Cr18Ni9 1Cr18Ni9 ≤0.15 ≤1.00 ≤2.00 ≤0.045 ≤0.030 8.00~10.00 17.00~19.00 ≤0.10
4 S30408 06Cr19Ni10 0Cr18Ni9 ≤0.08 ≤1.00 ≤2.00 ≤0.045 ≤0.030 8.00~11.00 18.00~20.00 -


Mechanical property

No. Unified digital code New steel grade Old steel grade

Yield strength
Rp0.2/MPa

Tensile
Strength
Rm/MPa

Elongation A/
％
≥
1 S35350 12Cr17MnNi5N 1Cr17Mn6Ni5N 245 520 25
2 S35450 12Cr18Mn9Ni5N 1Cr18Mn8Ni5N 245 520
3 S30210 12Cr18Ni9 1Cr18Ni9 210 520 30
4 S30408 06Cr19Ni10 0Cr18Ni9 210 520


Characteristic:
TORICH QUALITY ASSURANCE
Good surface quality
Good OD and ID tolerance controlled to Technical Standard
Stable quality
100% Eddy Current Test

Processing:Continous welding formed

Widely used in the field of:Structural usage

Product Images:Stainless Steel Clad Pipes for Structural Purpose GB/T 18704 304




















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large diameter stainless steel tube

      
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