A312 pipe Manufacturing Types
ASTM B673, B677, B674 stainless steel pipe and tube covers following manufacturing types (Including hot finished or cold finished):
a. Seamless Pipe (SMLS): It covers stainless steel seamless pipe or tube in hot rolling or cold drawn.
b. Welded Pipe (WLD): Welded by an automatic welding process that does not add filler metal when welding.
c. Cold Worked Pipe (HCW pipe): The heavy cold-worked pipe that apply cold working of not less than 35% reduction in thickness of both wall, and welded to the welded pipe prior to final annealing. Do not use fillers during welding.
d. Welded and HCW pipe: Welded pipe and HCW pipe of 14 and smaller than NPS 14 shall have a single longitudinal weld. After approval by the purchaser, the welded pipe and HCW pipe with an NPS greater than NPS 14 shall have a single longitudinal weld or shall be manufactured by forming and welding two longitudinal sections of flat stock. So each welds are to be tested, inspected, inspected or treated.
Pipe Process of ASTM B673, B677, B674 904L Stainless Steel Seamless tube / ASTM B673, B677, B674 904L Stainless Steel Seamless Pipes
Round Bar → Inspection & Analysis → Cut to Length → Coutering → Peel → Heating → Perforation → Inspection of Size → Pickling → Inspection of Surface → Lubricating → Cold-Drawing(Cold-Rolling) → Degreasing → Annealing→ Straightening → Cut → Corp End Cutting off → Pickling/Passivating → Final Inspection( UT/ET TEST or Hydrostatic Test) → Marking → Packing → Shipping
Product manufacturing standard:
ASTM B673, B677, B674 stainless steel pipe and tube covers following manufacturing types (Including hot finished or cold finished):
a. Seamless Pipe (SMLS): It covers stainless steel seamless pipe or tube in hot rolling or cold drawn.
b. Welded Pipe (WLD): Welded by an automatic welding process that does not add filler metal when welding.
c. Cold Worked Pipe (HCW pipe): The heavy cold-worked pipe that apply cold working of not less than 35% reduction in thickness of both wall, and welded to the welded pipe prior to final annealing. Do not use fillers during welding.
d. Welded and HCW pipe: Welded pipe and HCW pipe of 14 and smaller than NPS 14 shall have a single longitudinal weld. After approval by the purchaser, the welded pipe and HCW pipe with an NPS greater than NPS 14 shall have a single longitudinal weld or shall be manufactured by forming and welding two longitudinal sections of flat stock. So each welds are to be tested, inspected, inspected or treated.
Pipe Process of ASTM B673, B677, B674 904L Stainless Steel Seamless tube / ASTM B673, B677, B674 904L Stainless Steel Seamless Pipes
Round Bar → Inspection & Analysis → Cut to Length → Coutering → Peel → Heating → Perforation → Inspection of Size → Pickling → Inspection of Surface → Lubricating → Cold-Drawing(Cold-Rolling) → Degreasing → Annealing→ Straightening → Cut → Corp End Cutting off → Pickling/Passivating → Final Inspection( UT/ET TEST or Hydrostatic Test) → Marking → Packing → Shipping
Product manufacturing standard:
|
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 |
|
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B622 B668 |
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|
|
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B677 B829 |
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Steel Grades:
|
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) |
|
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Application of ASTM B673, B677, B674 904L Steel tube / ASTM B673, B677, B674 904L Stainless Steel tubes:
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 ASTM B673, B677, B674 904L Steel tube / ASTM B673, B677, B674 904L Stainless Steel tubes:
Mechanical Properties of ASTM B673, B677, B674 904L Steel tube / ASTM B673, B677, B674 904L Stainless Steel tubes:
Grade Specifications of ASTM B673, B677, B674 904L Steel tube / ASTM B673, B677, B674 904L Stainless Steel tubes:
DIMENSION Tolerance of ASTM B673, B677, B674 904L Steel tube / ASTM B673, B677, B674 904L Stainless Steel tubes:
|
Wall Thickness |
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Permitted Variations in Wall thickness (%) |
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Tolerance, % from Nominal |
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NPS Designator |
Over |
Under |
|
All |
Not specified |
-12.5 |
|
where: t=Nominal Wall Thickness D=Ordered Outside Diameter |
|
|
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Outside Diameter |
Length(mm) |
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Permitted Variations in Outside Diameter (mm) |
||
|
NB |
Tolerance |
Tolerance |
|
- 4 |
±0.79 |
+6 .4 / -0 mm |
|
5 - 8 |
+ 1.58 / -0.79 |
|
|
10-18 |
+ 2.37 / -0.79 |
|
|
20- 24 |
+3.18 / -0.79 |
|
Other Types of ASME SA790 S31803 Duplex Steel tubes / ASTM A790 S31803 Stainless Steel tube:
|
ASME SA790 / ASTM A790 S31803 SS SMLS Pipe |
ASME SA928 / ASTM A928 S31803 SS Welded Pipe |
|
ASTM A790 S31803 Boiler Pipes Supplier |
SA928 / A928 S31803 Inox Tubes and pipes |
|
S31803 ASME SA 790 Seamless Steel Pipes Exporter |
SUS S31803 inox Steel Welded Tubing Stockist |
|
A789 S31803 Stainless Steel Pipes in Iraq |
2205 ASTM A928 Stainless Steel welded Mechanical Tubes |
|
ASTM A790 1.4462 S31803 Duplex Steel Pipe in Korea |
A928 S31803 welded Inox Steel Tube stockist |
|
ASTM A790 S31803 Hot Finished Seamless Steel Pipe in Germany |
A928 / SA928 Grade S31803 Stainless ERW Welded steel Tubes |
|
IBR Approved S31803 ASTM A790 stainless steel Tubes |
IBR Approved ASTM A928 S31803 Tubing Stockist |
|
ASTM A790 Duplex Steel Seamless Pipe in Peru |
ASTM A928 Steam Boiler Tubes Stockholder |
|
High Quality S31803 A790 Duplex steel Pipes in Malaysia |
2205 Duplex steel Tubes Manufacturer |
