ASTM A178 Electric resistance welded carbon steel and carbon mangaese steel boiler and superheater tubes
Professional manufacturer of Seamless Heat Exchanger Steel Tubes in China, Wholesale Carbon Steel Heat Exchanger Tubes,Superheater Steel Tubes, Heat Exchanger Tubes,Oval steel tube with low price, high quality.
ASTM A178 boiler steel tube Applications: for Boilers,Superheaters, Heat-Exchangers, Condensers, Boiler flues, superheater flues and safe ends
Steel tubing products Material: Carbon Steel and carbon manganese steel
Production: Electric Resistance Welding
Size range: O.D.:6-127mm W.T.:0.9-9.1mm L: according to customer requirement
Chemical Compositions:
| Steel Grade and Chemical Compositions: |
| Element | Grade A,
Low-Carbon Steel | Grade C,
Medium-Carbon Steel | Grade D,
Carbon-Manganese
Steel |
| Carbon | 0.06-0.18 | 0.35 max | 0.27 max |
| Manganese | 0.27-0.63 | 0.80 max | 1.00-1.50 |
| Phosphorus, max | 0.035 | 0.035 | 0.030 |
| Sulfur, max | 0.035 | 0.035 | 0.015 |
| Silicon | - | - | 0.10 min |
Mechanical Properties:
| Mechanical Properties | Grade A | Grade C | Grade D |
| Tensil Streghth: min ksi[Mpa] | 47[325] | 47[415] | 70[485] |
| Yield Point: min ksi[Mpa] | 26[180] | 37[255] | 40[275] |
| Elongation: | ≥35% | ≥30% | ≥30% |
Tolerance for OD and WT:
| Tolerance for OD and WT(SA-450/SA-450M) |
| OD in(mm) | + | - | WT in(mm) | + | - |
| ＜1''(25.4) | 0.10 | 0.10 | ≤1.1/2''(38.1) | 20% | 0 |
| 1''~1.1''(25.4~38.1) | 0.15 | 0.15 | ＞1.1/2''(38.2) | 22% | 0 |
| ＞1.1/2''~＜2''(38.1~50.8 | 0.20 | 0.20 |
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| 2''~＜2.1/2''(50.8~63.5) | 0.25 | 0.25 |
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| 2.1/2''~＜3''(63.5~76.2) | 0.30 | 0.30 |
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| 3''~＜4''(76.2~101.6) | 0.38 | 0.38 |
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| 4''~＜7.1/2''(101.6~190.5) | 0.38 | 0.64 |
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| ＞7.1/2~9''(190.5~228.6) | 0.38 | 1.14 |
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Mechanical Test Required:
1. Flattening Test
2. Flange Test
3. Crush Test
4. Tension Test
5. Reverse Flattening Test
6. Hydrostatic or Nondestructive Electric Test
Reference Documents:
ASTM A450/A450M Specification for General Requirements for Carbon, Ferritic Alloy, and Austenitic Ally Steel Tubes
E213 Practice for Ultrasonic Examination of Metal Pipe and Tubing
E273 Practice for Ultrasonic Examination of Longitudinal Welded Pipe and Tubing
Steel Grade:
Carbon Steel Grade:
ST35.8, ST37.0, ST44, ST52;
E155, E195, E215, E235, E275, E355;
195GH, P235GH, P265GH, P195TR1, P195TR2, P235TR1, P235TR2, P265TR1, P265TR2;
SAE1010, SAE1020, SAE1026, SAE1035, SAE1045;
Carbon steel tube: SA178, A179, A192, A210, SA213, SA214, etc.
Alloy Steel Grade:
T2, T5, T9, T11, T12, T17, T21, T22, T91,T92, 15Mo3,16Mo3, 13CrMo44;
SAE4130, SAE4140, 40Cr, 40Cr4, 10CrMo910, 12CrMo910, 11CrMo910,
25CrMo4, 35CrMo, 35CrMo4, 42CrMo4, 34CrMo4, 20MnV, 20MnV6,20CrMn;
Carbon steel tube: A179,A192,A210,DIN17175,etc.
Nickel Alloy Grade:
N02200/2201, N04400, N06600, N06601, N06625, N06852, N06219, N06690, N08800/8810/8811, N08825, N08028, N08535, N08904, N08925, N08926, N010276, N06022, etc.
Austenitic/Super Austenitic Stainless Steel Grade:
304/304L, 316/316L, 314, 321, 347H, 316Ti, 316LMod, 317L/N, 310S, 253MA, 330, 904L, S31254, XM-19, etc.
Ferrite/Martensite Stainless Steel Grade:
TP410, TP405, TP420, TP430, TP430Ti, TP403, TP409, TP444, TP439, TP446, etc.
Duplex/Super Duplex Stainless Steel Grade:
S31803, S32304, S31500, S32550, S32750, S32760, etc.
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