TP 347H

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.

 

Specification

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
Min, MPa

Yield Strength,
 min, MPa

Elongation in2 in. or
50mm, min, %

Hardness, Max

Brinell/Vickers

Rockwell

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


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