TP347H Stainless steel seamless pipe is different with TP347 stainless steel seamless pipe.
These different requirements provide higher creep-rupture strength than normally achievable in similar grades without these different requirements. Grade TP347HFG stainless steel seamless pipe shall be cold finished.
TP347H stainless steel seamless pipe shall be reheated to the specified solution treatment temperature for the required time before quenching.
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Specification |
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| Size | OD: 6.0 ~ 406.4mm; WT: 1 ~ 50mm;
O.D.1/8”-16”;W.T.:SCH 10(S);-SCH XXS Length: as your requirement,11.8M MAX; |
| Process | Seamless, Cold Drawn, Cold Rolled |
| Different Name | 1.4961 Seamless Stainless Steel Pipe X8CrNiNb16-13 Seamless Stainless Steel Pipe UNS S34709 Seamless Stainless Steel Pipe TP347H Stainless Steel Boiler Tubes TP347H Stainless Steel Super heater Tubes |
| End | PE(Plain End), BE(Beveled End) |
| Surface | Aid Pickling, Polishing, |
| Standard | ASTM A312, ASTM A213, EN10216-5, DIN 17456, DIN 17458, JIS G3459, JIS G3463 |
| Theoretical Weight(kg/m) | Weight/meter = (OD-WT)*WT*0.02507 Both OD and WT in mm. |
Note:
OD is the specified outside diameter.
WT is the specified wall thickness
Stainless steel pipes shall be pickled free of scale. When bright annealing is used, pickling is not necessary.
Plain ends cut and deburred will be furnished. If threaded ends or ends beveled for welding are desired, give details.
Chemical Composition
|
Grade |
UNS Designation |
C,% (Max) |
Mn,% Max |
P,% Max |
S,% Max |
Si,% Max |
Cr,% |
Ni,% |
N,% Max |
|
TP347 |
S34700 |
0.08 |
2.00 |
0.045 |
0.030 |
1.00 |
17.0-20.0 |
9.0-13.0 |
10xC-1.10 |
|
TP347H |
S34709 |
0.04-0.10 |
2.00 |
0.045 |
0.030 |
1.00 |
17.0-19.0 |
9.0-13.0 |
8xC-1.10 |
|
TP347HFG |
S34710 |
0.06-0.10 |
2.00 |
0.045 |
0.030 |
1.00 |
17.0-19.0 |
9.0-13.0 |
8xC-1.10 |
Heat Treatment Requirement
|
Grade |
UNS Designation |
Heat Treat Type |
Austenitizing / Solutioning Temperature, min or range℃ |
Cooling Media |
|
TP347 |
S34700 |
Solution Treatment |
1040 |
Water or other Rapid Cool |
|
TP347H |
S34709 |
Solution Treatment |
Cold Worked:1100; Hot Rolled:1050 |
Water or other Rapid Cool |
|
TP347HFG |
S34710 |
Solution Treatment |
1175 |
Water or other Rapid Cool |
Mechanical Properties
|
Grade |
UNS Designation |
Tensile Strength |
Yield Strength, |
Elongation in2 in. or |
Hardness, Max |
|
|
Brinell/Vickers |
Rockwell |
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TP347 |
S34700 |
515 |
205 |
35 |
192HBW/200HV |
90HRB |
|
TP347H |
S34709 |
515 |
205 |
35 |
192HBW/200HV |
90HRB |
|
TP347HFG |
S34710 |
550 |
205 |
35 |
192HBW/200HV |
90HRB |
Tests of TP347/H/HFG Stainless Steel Seamless Pipe
1.Chemical Analysis
2.Mechanical Properties
2.1Tensile Requirement
2.2Hardness Requirement
2.3Flattening Test
2.4Flaring Test
3.Hydrostatic Test or Nondestructive Electric Test
