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Stainless Steel Boiler Tube,ASME SA213 TP347H, Power Plant boiler application
Yuhong group ASME SA213 TP347H grade main for power plant application, this grade need arrange stabilization Heat Treatment, during the last heat teament , usually Yuhong Group control the Furnace temperature around 950℃, and keep time around 2 ~4 hours .
Yuhong Group ASME SA213 TP347H Stainless Steel Boiler Tube datasheet :
Out Side Diameter: 31.75mm , 38.1mm , 44.45mm , 50.8mm , 57.15mm , 63.5mm, 76.2mm, .... 165.2mm ;
Wall thickness: 2mm to 20mm
Length: Max.: 34m/pc
All tubes of ASME SA213 match Grain Size <7. (ASTM E112 );
All tubes with 100% Eddy Current Test (ASTM E426);
All tubes with 100% Hydrostatic Test ( ASTM A1016 - 7Mpa/5s );
Tests of TP347,TP347H Stainless Steel Boiler Tube
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
Chemical Composition of ASME SA213 TP347 , TP347H :
Grade | C | Mn | Si | P | S | Cr | Mo | Ni | Niobium | Other | |
TP347 | min. | - | 2.0 | 1.0 | 0.045 | 0.03 | 17 | - | 9 | 10*C ~1.10 | / |
max | 0.08 | 19 | 13 | / | |||||||
TP347H | min. | 0.04 | 2.0 | 1.0 | 0.045 | 0.03 | 17 | - | 9 | 8*C ~1.10 | / |
max | 0.1 | 19 | 13 | / |
Mechanical Properties of ASME SA213 TP347, TP347H:
Grade | Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) min | Hardness | |
Rockwell B (HRB) max | Brinell (HBW) max | ||||
TP347 | 515 | 205 | 35 | 90 | 192 |
TP347H | 515 | 205 | 35 | 90 | 192 |
TP347H also has a requirement for a grain size of ASTM No 7 or coarser. |
ASME SA213 TP347H Stainless Steel Boiler Tube application: