EN10204 3.1 Cold Drawn Seamless Steel Pipe Heat Exchanger Tube TP347 347H ASME SA213
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Min.Order:1 Set
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EN10204 3.1 Cold Drawn Seamless Steel Pipe Heat Exchanger Tube TP347 347H ASME SA213
ASME SA-213-TP347/347H
Seamless ferritic and austenitic alloy steel boiler, superheater, and heat exchanger tubes.
Chemical Properties:
Carbon: 0.08 max. Silicon: 0.75 max
Manganese: 2.00 Nickel: 9.00-13.0
Potassium: 0.04 Chromium: 17.0-20.0
Sulfur: 0.03 Molybdenum: n/a
Mechanical Properties:
Tensile Strength:
ksi: 75
MPa: 517
Yield:
ksa: 30
MPa: 207
Elongation in 2in. or 50mm, min. %: 35
Max. Hardness Rockwell B: 90
Technical composition (%) | Fe | Cr | Ni | Mn | Si | P | C | S | Nb | |
---|---|---|---|---|---|---|---|---|---|---|
347 | min | Bal. | 17.0 | 9.0 | - | - | - | 0.040 | - | 8xC |
max | - | 20.0 | 13.0 | 2.00 | 0.75 | 0.040 | 0.080 | 0.030 | 0.8 | |
347H | min | Bal. | 17.0 | 9.0 | - | - | - | 0.040 | - | 10xC |
max | - | 20.0 | 13.0 | 2.00 | 0.75 | 0.040 | 0.100 | 0.030 | 1.0 | |
Mechanical properties | 347 | 347H |
---|---|---|
Tensile strenght (mpa, min) | 515 - 690 | 515 - 740 |
Yield strength (0.2% offset mpa, min) | 215 - 260 | 215 - 260 |
Elongation (%, min) | 40 | 40 |
Density / weight (g / cm3 / kg) | 7.9 | 7.9 |
Wst. 1.4550/1.4912
UNS S34700/S34709
Specification:
ASTM A 269/A 213/A 312 / EN10216-5 /EN ISO 1127 D4/T3/EN 10305 / PED 97/23 EC
Maximum exposure temperature: 850°C / 1560°F
Alloy 347 is an austenitic, niobium, stabilized stainless chromium-nickel steel. It has slightly imposed corrosion resistance over 321 stainless steel in strongly oxidizing environments and is preferable for aqueous and low temperature environments due to its good resistance to inter granular attack. The 347H has high carbon (0.4 to 0.1%) for better high temperature creep properties.
Characteristics:
Excellent resistance to inter granular corrosion due to niobium stabilization
Good resistance to organic aids and salt solutions
Sensitive to pitting and crevice corrosion
Less resistance to stress corrosion crashing by chloride solutions
Market Applications:
Oil refineries
Fires heater tubes
Power plants
Heat exchanges
High chemical process
High temperature stream service