A312 pipe Manufacturing Types
ASTM A312 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 ASME SA312 310S Stainless Steel Seamless tube / ASTM A312 310S 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 A312 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 ASME SA312 310S Stainless Steel Seamless tube / ASTM A312 310S 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
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GB |
ASTM/ASME |
JIS |
DIN |
EN |
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GB/T14975-2002 |
A213/A213M |
G3446 G3447 |
DIN2462 |
EN10216-5 |
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GB/T14976-2002 |
A249/A249M |
G3448 G3459 |
DIN2463 |
EN10217-7 |
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GB13296-2007 |
A790/A790M |
G3463 G3468 |
DIN17457 |
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GB/T12771-2008 |
A269 A358 |
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DIN17458 |
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GB/T12770-2000 |
A511 A688 |
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GB/T19228.2 |
A778 A789 |
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HG20537.2-92 |
A790 |
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HG20537.3-92 |
B163 B167 |
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HG20537.4-92 |
B338 B407 |
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SH3501-2002 |
B423 B444 |
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B622 B668 |
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B677 B829 |
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Steel Grades:
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Austenitic |
Duplex |
Nickel Stainless |
Ti |
Ferrite |
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304/L/H |
S31500 |
600625 |
Grade1 |
409L |
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310S/H |
S32101 |
800825 |
Grade2 |
439 |
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316/L/H |
S32003 |
400 |
Grade3 |
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317/L |
S32304 |
N06985 |
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321/H |
S31803 |
N10276 |
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347/H |
S32205 |
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S30432 |
S32750 |
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S31042 |
S32760 |
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904L |
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6Mo(S79054) |
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Application of ASME SA312 310S Steel tube / ASTM A312 310S 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 ASME SA312 310S Steel tube / ASTM A312 310S Stainless Steel tubes:
Mechanical Properties of ASME SA312 304 Steel tube / ASTM A312 304 Stainless Steel tubes:
Grade Specifications of ASME SA312 310S Steel tube / ASTM A312 310S Stainless Steel tubes:
DIMENSION Tolerance of ASME SA312 310S Steel tube / ASTM A312 310S Stainless Steel tubes:
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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 |
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1/8 to 2 1/2., all t/D ratios |
20 |
12.5 |
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3 to 18 incl., t/D up to 5% incl. |
22.5 |
12.5 |
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3 to 18 incl., t/D > 5% |
15 |
12.5 |
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20 and larger, welded, all t/D ratios |
17.5 |
12.5 |
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20 and larger, seamless, t/D up to 5% incl. |
22.5 |
12.5 |
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20 and larger, seamless, t/D > 5% |
15 |
12.5 |
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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) |
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OD |
Tolerance |
Tolerance |
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10.29 - 48.26 |
20 |
+6 /-0 |
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48.26 - 114.30 |
22.5 |
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114.3 - 219.08 |
15 |
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219.08 - 457.20 |
17.5 |
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Other Types of ASME SA312 310S Steel tube / ASTM A312 310S Stainless Steel tubes:
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ASME SA312 / ASTM A312 310S SS SMLS Pipe |
ASME SA312 / ASTM A312 310S SS Welded Pipe |
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ASTM A312 GR.310S Boiler Pipes Supplier |
SA312 / A312 TP310S Inox Tubes and pipes |
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310S16 ASME SA312 Seamless Steel Pipes Exporter |
ASTM A312 310S inox Steel Welded Tubing Stockist |
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A312 X8CrNi25-21 Mechanical Pipes in Iraq |
310S ASTM A312 Stainless Steel welded Mechanical Tubes |
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ASTM A312 GR.310S Cold drawn Seamless Steel Pipe in Korea |
A358 S31008 welded Inox Steel Tube stockist |
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ASTM A312 1.4845 X8CrNi25-21 Hot Finished Seamless Steel Pipe in Germany |
A312 / SA312 Grade 310S ERW Welded steel Tubes |
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IBR Approved GR.310S ASTM A312 Pipe |
IBR Approved ASTM A312 GR.310S Tubing Stockist |
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ASTM A312 Steam Boiler Pipes in Peru |
ASTM A312 Steam Boiler Tubes Stockholder |
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High Quality GR.310S A312 Boiler Pipes in Malaysia |
SUS 310S High Quality Boiler Tubes Manufacturer |
