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| Categories | Heat Exchanger Tube |
|---|---|
| Brand Name: | YUHONG |
| Model Number: | ASTM A213 T9 Alloy Steel U Bend Tube |
| Certification: | ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008 |
| Place of Origin: | CHINA |
| MOQ: | 500kgs |
| Payment Terms: | L/C, T/T |
| Delivery Time: | 7 DAYS |
| Packaging Details: | Ply-wooden Case /Iron Case |
| Product Name: | Alloy Steel U Bend Tube |
| Standard: | ASTM A213/ASME SA213 |
| Material Grade: | Alloy Steel T5/T9/T11/T22, Stainless Steel 304/304L/316L |
| O.D.: | 1/4" 3/8" 1/2" 5/8" 3/4" 1", ECT. |
| W.T.: | BWG 25, 22, 20 18, 16, 14, 12 |
| Length: | Single, Random |
| Technique: | Cold rolled and Cold drawn |
| NDT: | HT, ET, UT , PT |
| Application: | Boiler Tube Oil / Gas Drilling, Chemical Industry, etc. |
| High Light: | ASME SA213 T9 Alloy Steel Seamless Tube, Alloy Steel U Bend Tube |
| Company Info. |
| Yuhong Group Co.,Ltd |
| Verified Supplier |
| View Contact Details |
| Product List |
ASTM A213 / ASME SA213 T9 Alloy Steel Seamless Tube U Bend Tube for Heat Exchanger
Grade T9 and P9 alloy steel tube and pipe are included in ASTM or ASME suited for boiler superheater, reheater pipe, header and steam pipe under 600℃ in high pressure, ultra-high pressure and subcritical power station, nuclear power heat exchanger and oil cracking unit furnace pipe.
Both of them contain 9-Chromium-1 Molybdenum alloy, which offers very good corrosion resistance and oxidation resistance with good high-temperature strength. Grade T9 specified in ASTM A213 which does Ferrite and Austenitic boiler superheater and heat exchanger seamless steel tube.
Equivalent Material of ASTM A213 T9 Alloy Steel Seamless Tube Heat Exchanger Tube
| UNS | ASTM | EN | DIN | JIS | GB |
| K50400 | P9 | 12Cr9Mo | X12CrMo91 | STBA26 | / |
Mechanical Property of ASTM A213 T9 Alloy Steel Seamless Tube Heat Exchanger Tube
| Steel Grade | Tensile Strength, Mpa | Yield Strength, Mpa | Elongation, % |
| ASTM A213 T5 | Min: 415 | Min: 205 | Min: 30 |
| ASTM A213 T9 | Min: 415 | Min: 205 | Min: 30 |
| ASTM A213 T11 | Min: 415 | Min: 205 | Min: 30 |
| ASTM A213 T12 | Min: 415 | Min: 205 | Min: 30 |
| ASTM A213 T22 | Min: 415 | Min: 205 | Min: 30 |
| ASTM A213 T91 | Min: 415 | Min: 415 | Min: 20 |
Chemical Composition of ASTM A213 T9 Alloy Steel Seamless Tube Heat Exchanger Tube
| Steel Grade | ||||||||
| C | Mn | P | S | Si | Cr | Mo | V | |
| ASTM A213 T5 | Max: 0.15 | 0.30 - 0.60 | Max: 0.025 | Max: 0.025 | Max: 0.50 | 4.00 - 6.00 | 0.45 - 0.65 | -- |
| ASTM A213 T9 | Max: 0.15 | 0.30 - 0.60 | Max: 0.025 | Max: 0.025 | 0.25 - 1.00 | 8.00 - 10.00 | 0.90 - 1.10 | -- |
| ASTM A213 T11 | 0.05 - 0.15 | 0.30 - 0.60 | Max: 0.025 | Max: 0.025 | 0.50 - 1.00 | 1.00 - 1.50 | 0.44 -0.65 | -- |
| ASTM A213 T12 | 0.05 - 0.15 | 0.30 - 0.61 | Max: 0.025 | Max: 0.025 | Max: 0.50 | 0.80 - 1.25 | 0.44 - 0.65 | -- |
| ASTM A213 T22 | 0.05 - 0.15 | 0.30 - 0.60 | Max: 0.025 | Max: 0.025 | Max: 0.50 | 1.90 - 2.60 | 0.87 - 1.13 | -- |
| ASTM A213 T91 | 0.08 - 0.12 | 0.30 - 0.60 | Max: 0.020 | Max: 0.010 | 0.20 - 0.50 | 8.00 - 9.50 | 0.85 - 1.05 | 0.18 - 0.25 |
| Cb: 0.06 - 0.1 | N: 0.030 - 0.070 | Ni: Max: 0.40 | Al: Max0.04 | Ti: Max: 0.01 | Zr: Max 0.01 |
Alloy Steel U Bend Tubes
Purpose: Accommodate thermal expansion in shell-and-tube heat exchangers, reducing stress on tubesheet connections.
Bending Process:
Methods: Cold bending or induction bending.
Challenges: Minimize wall thinning, ovality, and residual stresses.
Post-Bending Heat Treatment: Stress relieving (e.g., 650–700°C) to restore properties.
Applications
Pressure vessel
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