SMLS PIPE 1Cr19Ni11Nb ASTM A376 TP347H Orefractory Steel Reheater tube steam boiler
Brand Name:YUHONG GROUP
Certification:ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008
Model Number:TP347H
Minimum Order Quantity:1PC
Delivery Time:Depends on quantity
Payment Terms:L/C, T/T
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SMLS PIPE 1Cr19Ni11Nb ASTM A376 TP347H Orefractory Steel Reheater tube steam boiler
Overview
TP347H (1Cr19Ni11Nb) belongs to the high carbon Cr-Ni austenitic
stainless steel containing niobium, because of the stabilizing
element Nb, its resistance to intergranular corrosion and
resistance to polysulfate intergranular stress corrosion
performance is good, in acid, alkali, salt and other corrosive
media its corrosion resistance line and Ti containing 18-8
austenitic stainless steel is similar, so it is widely used in
boilers, power generation, petroleum, chemical, synthetic fibers,
food Paper industry. Because Nb is less prone to burnout than Ti,
this steel grade can be used as a weld core for welding
chromium-nickel austenitic stainless steel. The steel has higher
high-temperature strength and better resistance to high-temperature
oxidation than the 316 series, so it is often used as a Orefractory
Steel
Chemical Composition of ASTM A376 TP347H
| Grade | C | Ni | Si | N | S | Mn | P | Cr | Mo | |
| SS 347 | min. | 0.04 | 9 | – | – | – | – | – | 17 | 2 |
| max. | 0.1 | 13 | 1 | – | 0.03 | 2 | 0.045 | 20 | 3 | |
Mechanical Strength of ASTM A376 TP347H
| Grade | Tensile Strength (MPa) min | Elongation (% in 50mm) min | Yield Strength 0.2% Proof (MPa) min | Hardness | |
| Rockwell B (HR B) max | Brinell (HB) max | ||||
| SS 347 | 515 | 35 | 205 | 92 | 201 |
Physical Properties of ASTM A376 TP347H
| Properties | Metric | Imperial |
| Density | 7.7 – 8.03 g/cm3 | 0.278 – 0.290 lb/in³ |
Equivalent grade of ASTM A376 TP347H
| Grade | UNS No | Old British | Euronorm | Swedish SS | Japanese JIS | ||
| BS | En | No | Name | ||||
| 347 | S34700 | 347S31 | 58G | 1.455 | X6CrNiNb18-10 | 2338 | SUS 347 |
ASTM A376 TP347H Application
Reheater tube
steam boiler
Steam pipelines
petrochemicals
SMLS PIPE 1Cr19Ni11Nb ASTM A376 TP347H Orefractory Steel Reheater tube steam boiler
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