Pipes
JIS G3459, CNS 6331

Material: 304, 304L, 316L
規格

JIS G3459 and CNS6331 Stainless Steel Pipes Standard specifies Stainless Steel Pipes used for piping for corrosion resistance, low temperature service, elevated temperature service, fire-fighting services etc.

 

JIS G3459 is applicable to pipes with an outside diameter mainly in the range between 13.8mm (nominal diameter 8A or 1/4B) and 660.4mm (nominal diameter 650A or 26B).

 

The pipe of JIS G3459 is available with grade in SUS304TP, 304LTP, SUS316TP, 316LTP and the pipes of CNS 6331 is available with grades in 304/A304L, 316/A316L. All pipes are available in different size and thickness as our size range in catalog based on customers’ requirements.

 

These pipes are widely used in various application industry like Oil & Gas, Paper, breweries, Cement, Sugar, Oil Mills, Mining, Shipbuilding, Steel Plant etc.

 

YC INOX CO., LTD is a well-known leading stainless steel pipe & tube manufacturer.

 
  • We have professional manufacturing, engineering team which offer products with excellent and consistent quality to our worldwide clients.
  • Our prompt after-sales service is always customers’ best backup
  • Our punctual delivery time make stock controlling well.
  • We offer product with tolerance complies with the norm; specific tolerance requirement is discussable.
  • Specific mechanical tests are negotiable between seller and buyer.
  • Available with bundle packing and steel crate packing based on clients’ preference.

JIS G3459, CNS 6331

 
Nominal Diameter Outside Diameter (mm) Nominal Wall Thickness (mm)
JIS G3459 , CNS 6331 JIS G3468 , CNS 13517

Other Common Thickness

A B SCH 5S SCH 10S SCH 20S SCH 40 SCH 5S SCH 10S SCH 20S SCH 40
8 1/4 13.8 1.2 1.65 2.0 2.2 - - - - -
10 3/8 17.3 1.2 1.65 2.0 2.3 - - - - 1.5/2.5
- - 20.4* - - - - - - - - 2.0/2.5
15 1/2 21.7 1.65 2.1 2.5 2.8 - - - - 2.0/3.0/3.2
- - 26.4* - - - - - - - - 2.0/2.5
20 3/4 27.2 1.65 2.1 2.5 2.9 - - - - 2.0/2.8/3.0/3.2
- - 33.4* - - - - - - - - 2.0/2.5/3.0
25 1 34.0 1.65 2.8 3.0 3.4 - - - - 2.0/2.5/3.5/4.0
32 1 1/4 42.7 1.65 2.8 3.0 3.6 - - - - 2.0/2.5/3.5/4.0/4.5/5.0
40 1 1/2 48.6 1.65 2.8 3.0 3.7 - - - - 1.5/2.0/2.5/3.5/4.0/4.5/5.0
50 2 60.5 1.65 2.8 3.5 3.9 - - - - 2.0/2.5/3.0/4.0/4.5/5.0
65 2 1/2 76.3 2.1 3.0 3.5 5.2 - - - - 2.0/2.5/4.0/5.0/5.5
80 3 89.1 2.1 3.0 4.0 5.5 - - - - 2.0/2.5/3.5/4.5/5.0/6.0
90 3 1/2 101.6 2.1 3.0 4.0 5.7 - - - - 2.0/2.5/3.5/5.0/6.0
100 4 114.3 2.1 3.0 4.0 6.0 - - - - 2.0/2.5/3.5/4.5/5.0/6.5
125 5 139.8 2.8 3.4 5.0 6.6 - - - - 2.5/3.0/3.5/4.0/5.5/6.0/6.5
150 6 165.2 2.8 3.4 5.0 7.1 2.8 3.4 5.0 7.1 3.0/3.5/4.0/5.5/6.0/6.5/7.0
200 8 216.3 2.8 4.0 6.5 8.2 2.8 4.0 6.5 8.2 3.0/3.5/4.5/5.0/6.0/7.0
250 10 267.4 3.4 4.0 6.5 9.3 3.4 4.0 6.5 9.3 3.0/3.5/4.5/6.0/7.0
300 12 318.5 4.0 4.5 6.5 10.3 4.0 4.5 6.5 10.3 3.0/3.5/5.0/6.0/7.0
350 14 355.6 - - - 11.1 4.0 5.0 8.0 11.1 6.0
400 16 406.4 - - - 12.7 4.5 5.0 8.0 12.7 4.0/6.0
450 18 457.2 - - - 14.3 4.5 5.0 8.0 14.3 -
500 20 508.0 - - - 15.1 5.0 5.5 9.5 15.1 -
550 22 558.8 - - - 15.9 5.0 5.5 9.5 15.9 -
600 24 609.6 - - - 17.5 5.5 6.5 9.5 17.5 -
650 26 660.4 - - - 18.9 5.5 8.0 12.7 - -
700 28 711.2 - - - - 5.5 8.0 12.7 - -
750 30 762.0 - - - - 6.5 8.0 12.7 - -
800 32 812.8 - - - - - 8.0 12.7 - -
850 34 863.6 - - - - - 8.0 12.7 - -
900 36 914.4 - - - - - 8.0 12.7 - -
1000 40 1016.0 - - - - - 9.5 14.3 - -
Remark

(1)Other nominal diameter and wall thickness subject to the approval of vendor and purchaser with MOQ requirement.

(2)Materials according to ASTM A240.

 

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. ≦ 1219.2mm + 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

Stainless Steel Pipes

Stainless Steel Pipes

Stainless Steel Pipes

Stainless Steel Pipes

Stainless Steel Pipes