Pipes
ASTM A312/A312M, A358/A358M, A778/A778M
ASME B36.19M/B36.10M

Material:304, 304L, 316L

ASTM and ASME Stainless Steel Pipes / SS Pipes

The ASTM and ASME stainless steel pipes produced by YC INOX are made of enduring and reliable stainless steel materials including 304, 304L, and 316L. Customers can further adjust chemical formula per request. Chemical elements including C, Si, Mn, P, S, Ni, Cr, and Mo are available variables for further custom modification.

Regarding the specifications of ss welded pipes, users are allowed to choose the most convenient nominal diameters as well as outside diameters and nominal wall thickness according to their requirements. The nominal diameter, outside diameter, and nominal wall thickness are all physical variables of ASTM and ASME pipes. With different combinations of diameters and wall thickness, the corresponding features are not the same. You may find more specific information on this page.

Leading Supplier of Stainless Steel Welded Pipes

Specification

YC INOX is a leading supplier of stainless steel welded pipes in the world. We are top 5 welded stainless steel pipe/tube producer worldwide rated by Austria SMI (Steel Market Intelligence) magazine. We provide world class stainless steel pipes according to international standard of ASTM A312/A312M, which is referring to straight-seam welded pipe and welded Austenitic stainless steel pipe for general corrosive environment.


YC INOX supplies commercial stainless steel material grades including TP304, TP304L as well as TP316L. These 3 different grades are classified as 300 series in Austenitic stainless steel category. The most common Austenitic stainless steel of all stainless steel is TP304 which is extensively used. Referring to TP316L grade, it contains with molybdenum, resulted with better performance resistance to acids, such as pitting and crevice corrosion.


ASTM A312 stainless steel pipe can be used for structural, piping, petro-chemical as well as machinery industry applications, which usually require high strength, toughness and excellent corrosion resistance. YC INOX offers outside diameter range from sizes 1/4" up to 84" for stainless steel pipe of industrial application, and schedule 5S, 10S, 40S, 80S, STD and XS in wall thickness (WT). Other nominal diameter and wall thickness may be available subject to the approval of vendor and purchaser.


In terms of packaging, YC INOX offers two options, one is steel crate and the other is bundle package. Customers can choose the package as per their needs for stainless steel pipes.


Professional team with excellent after-sales service:

  • Punctual delivery time makes stock controlling well.
  • Tolerance is accordance with the norm, specific tolerance requirement is discussable.
  • Supplementary examination is negotiable between seller and buyer.

ASTM A312/A312M, A358/A358M, A778/A778M, ASME B36.19M/B36.10M

Nominal Diameter NPS Outside Diameter(mm) Nominal Wall Thickness(mm)
ASME B36.19M ASME B36.10M
SCH-5S SCH-10S SCH-40S SCH-80S SCH-5 SCH-10 SCH-20 STD XS
1/4 13.72 - 1.65 2.24 3.02 - 1.65 - 2.24 3.02
3/8 17.15 - 1.65 2.31 3.20 - 1.65 - 2.31 3.20
1/2 21.34 1.65 2.11 2.77 3.73 1.65 2.11 - 2.77 3.73
3/4 26.67 1.65 2.11 2.87 3.91 1.65 2.11 - 2.87 3.91
1 33.40 1.65 2.77 3.38 4.55 1.65 2.77 - 3.38 4.55
1 1/4 42.16 1.65 2.77 3.56 4.85 1.65

2.77

- 3.56 4.85
1 1/2 48.26 1.65 2.77 3.68

5.08

1.65 2.77 - 3.68 5.08
2 60.33 1.65 2.77 3.91

5.54

1.65 2.77 - 3.91 5.54
2 1/2 73.03 2.11 3.05 5.16 7.01 2.11 3.05 - 5.16 7.01
3 88.90 2.11 3.05 5.49 7.62 2.11 3.05 - 5.49 7.62
3 1/2 101.60 2.11 3.05 5.74 8.08 2.11 3.05 - 5.74 8.08
4 114.30 2.11 3.05 6.02 8.56 2.11 3.05 - 6.02 8.56
5 141.30 2.77 3.40 6.55 9.53 2.77 3.40 - 6.55 9.53
6 168.28 2.77 3.40 7.11 10.97 2.77 3.40 - 7.11 10.97
8 219.08 2.77 3.76 8.18 12.70 2.77 3.76 6.35 8.18 12.70
10 273.05 3.40 4.19 9.27 12.70 3.40 4.19 6.35 9.27 12.70
12 323.85 3.96 4.57 9.53 12.70 3.96 4.57 6.35 9.53 12.70
14 355.60 3.96 4.78 9.53 12.70 3.96 6.35 7.92 9.53 12.70
16 406.40 4.19 4.78 9.53 12.70 4.19 6.35 7.92 9.53 12.70
18 457.20 4.19 4.78 9.53 12.70 4.19 6.35 7.92 9.53 12.70
20 508.00 4.78 5.54 9.53 12.70 4.78 6.35 9.53 9.53 12.70
22 558.80 4.78 5.54 - - 4.78 6.35 9.53 9.53 12.70
24 609.60 5.54 6.35 9.53 12.70 5.54 6.35 9.53 9.53 12.70
26 660.40 - - - - - 7.92 12.70 9.53 12.70
28 711.20 - - - - - 7.92 12.70 9.53 12.70
30 762.00 6.35 7.92 - - 6.35 7.92 12.70 9.53 12.70
32-84 812.80-2133.60 Thickness:6.35~30mm
Remark

(1)Marking:Within Production Capability.

(2)Other nominal diameter and wall thickness subject to the approval of vendor and purchaser.

 

Standard & Grade

Chemical Composition(%)
C Si Mn P S Ni Cr Mo

CNS

6331

304TP ≦ 0.080 ≦ 1.00 ≦ 2.00 ≦ 0.045 ≦ 0.030 8.0~11.0 18.0~20.0  
304L1TP ≦ 0.035 ≦ 1.00 ≦ 2.00 ≦ 0.045 ≦ 0.030 8.0~13.0 18.0~20.0  
304L2TP ≦ 0.030 ≦ 1.00 ≦ 2.00 ≦ 0.045 ≦ 0.030 9.0~13.0 18.0~20.0  
316TP ≦ 0.080 ≦ 1.00 ≦ 2.00 ≦ 0.045 ≦ 0.030 10.0~14.0 16.0~18.0 2.0~3.0
316L1TP ≦ 0.035 ≦ 1.00 ≦ 2.00 ≦ 0.045 ≦ 0.030 10.0~14.0 16.0~18.0 2.0~3.0
316L2TP ≦ 0.030 ≦ 1.00 ≦ 2.00 ≦ 0.045 ≦ 0.030 12.0~16.0 16.0~18.0 2.0~3.0

ASTM

A213

A312

TP304 ≦ 0.080 ≦ 1.00 ≦ 2.00 ≦ 0.045 ≦ 0.030 8.0~11.0 18.0~20.0  
TP304L ≦ 0.035 ≦ 1.00 ≦ 2.00 ≦ 0.045 ≦ 0.030 8.0~13.0A 18.0~20.0  
TP316 ≦ 0.080 ≦ 1.00 ≦ 2.00 ≦ 0.045 ≦ 0.030 10.0~14.0 16.0~18.0 2.0~3.0
TP316L ≦ 0.035 ≦ 1.00 ≦ 2.00 ≦ 0.045 ≦ 0.030 10.0~14.0 16.0~18.0 2.0~3.0

JIS

G3459

SUS304TP ≦ 0.080 ≦ 1.00 ≦ 2.00 ≦ 0.045 ≦ 0.030 8.0~11.0 18.0~20.0  
SUS304LTP ≦ 0.030 ≦ 1.00 ≦ 2.00 ≦ 0.045 ≦ 0.030 9.0~13.0 18.0~20.0  
SUS316TP ≦ 0.080 ≦ 1.00 ≦ 2.00 ≦ 0.045 ≦ 0.030 10.0~14.0 16.0~18.0 2.0~3.0
SUS316LTP ≦ 0.030 ≦ 1.00 ≦ 2.00 ≦ 0.045 ≦ 0.030 12.0~16.0 16.0~18.0 2.0~3.0

Remark

A ASTM A213 grade TP304L shall have an Ni content of not less than 8.00% and not more than 12.00%.

 
  Item
Standard Outside Diameter Thickness Length
ASTM A312
  O.D. ≦   48.26mm + 0.40mm ‧ -0.80mm
48.26mm < O.D. ≦   114.3mm ± 0.80mm  
114.3mm < O.D. ≦ 219.08mm + 1.60mm ‧ -0.80mm
219.08mm < O.D. ≦   457.2mm + 2.40mm ‧ -0.80mm
457.2mm < O.D. ≦   660.4mm + 3.20mm ‧ -0.80mm
660.4mm < O.D. ≦   863.6mm + 4.00mm ‧ -0.80mm
863.6mm < O.D. ≦    1219mm + 4.80mm ‧ -0.80mm

Nominal Thickness

+ 15%

-12.5%

L ≦ 7.3m + 6.0mm
  -     0mm
ASTM A358

Based on circumferential measurement ± 0.5%

Difference between major and minor outside diameters  1%  

-0.3mm
L ≦ 7.3m + 6.0mm
  -     0mm

CNS 6331

JIS G3459

O.D. < 30.0mm ± 0.30mm

O.D. ≧ 30.0mm ± 1%        

< 2mm ± 0.20mm

≧ 2mm ±     10%

Definite Cut Lengths

CNS 13517

JIS G3468

O.D. ≦ 318.5mm (300A) ±   1%

O.D. > 318.5mm (300A) ± 0.5%

< 8mm +   15%
- 12.5%
≧ 8mm +   15%
-   10%

Definite Cut Lengths

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