|
GB |
ASTM/ASME |
JIS |
DIN |
EN |
|
GB/T14975-2002 |
A213/A213M |
G3446 G3447 |
DIN2462 |
EN10216-5 |
|
GB/T14976-2002 |
A249/A249M |
G3448 G3459 |
DIN2463 |
EN10217-7 |
|
GB13296-2007 |
A790/A790M |
G3463 G3468 |
DIN17457 |
|
|
GB/T12771-2008 |
A269 A358 |
|
DIN17458 |
|
|
GB/T12770-2000 |
A511 A688 |
|
|
|
|
GB/T19228.2 |
A778 A789 |
|
|
|
|
HG20537.2-92 |
A790 |
|
|
|
|
HG20537.3-92 |
B163 B167 |
|
|
|
|
HG20537.4-92 |
B338 B407 |
|
|
|
|
SH3501-2002 |
B423 B444 |
|
|
|
|
|
B622 B668 |
|
|
|
|
|
B677 B829 |
|
|
|
|
Austenitic |
Duplex |
Nickel Stainless |
Ti |
Ferrite |
|
304/L/H |
S31500 |
600625 |
Grade1 |
409L |
|
310S/H |
S32101 |
800825 |
Grade2 |
439 |
|
316/L/H |
S32003 |
400 |
Grade3 |
|
|
317/L |
S32304 |
N06985 |
|
|
|
321/H |
S31803 |
N10276 |
|
|
|
347/H |
S32205 |
|
|
|
|
S30432 |
S32750 |
|
|
|
|
S31042 |
S32760 |
|
|
|
|
904L |
|
|
|
|
|
6Mo(S79054) |
|
|
|
|
1. Petrochemical industry;
2. Electric industry;
3. The shipbuilding industry;
4. Low-pressure heater;
5. Offshore Oil platform;
6. Nuclear Power industry
7. The Oil and Gas industry;
Chemical Composition of ASME SA312 321 Steel tube / ASTM A312 321 Stainless Steel tubes:
Mechanical Properties of ASME SA312 321 Steel tube / ASTM A312 321 Stainless Steel tubes:
|
Wall Thickness |
||
|
Permitted Variations in Wall thickness (%) |
||
|
Tolerance, % from Nominal |
||
|
NPS Designator |
Over |
Under |
|
1/8 to 2 1/2., all t/D ratios |
20 |
12.5 |
|
3 to 18 incl., t/D up to 5% incl. |
22.5 |
12.5 |
|
3 to 18 incl., t/D > 5% |
15 |
12.5 |
|
20 and larger, welded, all t/D ratios |
17.5 |
12.5 |
|
20 and larger, seamless, t/D up to 5% incl. |
22.5 |
12.5 |
|
20 and larger, seamless, t/D > 5% |
15 |
12.5 |
|
where: t=Nominal Wall Thickness D=Ordered Outside Diameter |
|
|
|
Outside Diameter |
Length(mm) |
|
|
Permitted Variations in Outside Diameter (mm) |
||
|
OD |
Tolerance |
Tolerance |
|
10.29 - 48.26 |
20 |
+6 /-0 |
|
48.26 - 114.30 |
22.5 |
|
|
114.3 - 219.08 |
15 |
|
|
219.08 - 457.20 |
17.5 |
|
|
ASME SA312 / ASTM A312 321 SS SMLS Pipe |
ASME SA312 / ASTM A312 321 SS Welded Pipe |
|
ASTM A312 GR.321 Boiler Pipes Supplier |
SA249/ A249 TP321 Inox Tubes and pipes |
|
S32100 ASME SA312 Seamless Steel Pipes Exporter |
ASTM A269 321 inox Steel Welded Tubing Stockist |
|
A312 321 stainless Mechanical Pipes in Iraq |
321 ASTM A312 Stainless Steel welded Mechanical Tubes |
|
ASTM A312 GR.321 Cold drawn Seamless Steel Pipe in Korea |
A358 S34709 welded Inox Steel Tube stockist |
|
ASTM A312 1.4541 Hot Finished Seamless Steel Pipe in Germany |
A249 / SA249 Grade 321 ERW Welded steel Tubes |
|
IBR Approved GR.321 ASTM A312 Pipe |
IBR Approved ASTM A312 GR.321 Tubing Stockist |
|
ASTM A312 Steam Boiler Pipes in Peru |
ASTM A312 Steam Boiler Tubes Stockholder |
|
High Quality GR.321 A312 Boiler Pipes in Malaysia |
321 High Quality Boiler Tubes Manufacturer |
