Nice Quality And Competitive Price Astm A178 4 - 450mm Outside Diameter Heat Exchanger Carbon Steel Welded Pipe
Applications: for Boilers,Superheaters, Heat-Exchangers, Condensers, Boiler flues, superheater flues and e ends
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
| Mechanical Properties | Grade A | Grade C | Grade D |
| Tensil Strength: 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(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 | |||
| 2''~<2.1/2''(50.8~63.5) | 0.25 | 0.25 | |||
| 2.1/2''~<3''(63.5~76.2) | 0.30 | 0.30 | |||
| 3''~<4''(76.2~101.6) | 0.38 | 0.38 | |||
| 4''~<7.1/2''(101.6~190.5) | 0.38 | 0.64 | |||
| >7.1/2~9''(190.5~228.6) | 0.38 | 1.14 | |||
Heat Treatment
After welding , all tubes shall be heat treated at a temperature of 1650ºF (900ºC) or higher and followed by cooling in air or in the cooling chamber of a controlled atmosphere furnace.
Chemical Composition
Carbon , max% 0.18
Manganese, % 0.27-0.63
Phosphorus max% 0.035
Sulfur, max% 0.035
Hardness Requirement
The tubes shall have a hardness number not exceeding 72 HRB
Mechanical Tests Required
1.Flattening Test
2.Flange Test
3.Reverse Test
4.Hardness Test
5.Hydrostatic or Nondestructive Electric Test
Chemical Requirements
| Element | GradeT1 | GradeT1a | GradeT1b | GradeT2 | GradeT11 | GradeT12 | GradeT22 |
| Carbon | 0.10-0.20 | 0.15-0.25 | 0.14max | 0.10-0.20 | 0.05-0.15 | 0.05-0.15 | 0.15max |
| Manganese | 0.30-0.80 | 0.30-0.80 | 0.30-0.80 | 0.30-0.61 | 0.30-0.60 | 0.30-0.61 | 0.30-0.60 |
| Phosphorus,max | 0.025 | 0.025 | 0.025 | 0.025 | 0.025 | 0.030 | 0.025 |
| Sulfur,max | 0.025 | 0.025 | 0.025 | 0.020 | 0.020 | 0.020 | 0.020 |
| Silicon | 0.10-0.50 | 0.10-0.50 | 0.10-0.50 | 0.10-0.30 | 0.50-1.00 | 0.50max | 0.50max |
| Molybdenum | 0.44-0.65 | 0.44-0.65 | 0.44-0.65 | 0.44-0.65 | 0.44-0.65 | 0.44-0.65 | 0.87-1.13 |
| Chromium | --- | --- | --- | 0.50-0.81 | 1.00-1.50 | 0.80-1.25 | 1.90-2.60 |
| Pneumatic Cylinder Tube | Hydraulic Cylilnder Tube | ||||||||
ID mm | OD mm | Thickness (mm) | Unitweigh (kg/m) | ID mm | OD mm | Thickness (mm) | Unitweigh (kg/m) | ||
| 90 | 100 | 5 | 11.71 | 50 | 60 | 5 | 6.78 | ||
| 50 | 63 | 6.5 | 9.06 | ||||||
| 100 | 110 | 5 | 12.95 | 50 | 65 | 7.5 | 10.63 | ||
| 50 | 70 | 10 | 14.8 | ||||||
| 125 | 135 | 5 | 16.03 | 56 | 66 | 5 | 7.52 | ||
| 60 | 70 | 5 | 8.01 | ||||||
| 140 | 152 | 6 | 21.6 | 60 | 73 | 6.5 | 10.66 | ||
| 60 | 80 | 10 | 17.26 | ||||||
| 150 | 160 | 5 | 19.11 | 63 | 76 | 6.5 | 11.14 | ||
| 63 | 80 | 8.5 | 14.99 | ||||||
| 160 | 170 | 5 | 20.34 | 63 | 83 | 10 | 18 | ||
| 65 | 75 | 5 | 8.63 | ||||||
| 160 | 172 | 6 | 24.56 | 65 | 80 | 7.5 | 13.41 | ||
| 70 | 80 | 5 | 9.25 | ||||||
| 180 | 194 | 7 | 32.28 | 70 | 83 | 6.5 | 12.26 | ||
| 70 | 86 | 8 | 15.39 | ||||||
| 200 | 214 | 7 | 35.73 | 70 | 90 | 10 | 19.73 | ||
| 75 | 90 | 7.5 | 15.26 | ||||||
| 200 | 216 | 8 | 41.03 | 75 | 95 | 10 | 20.96 | ||
| 80 | 93 | 6.5 | 13.87 | ||||||
| 200 | 219 | 9.5 | 49.08 | 80 | 95 | 7.5 | 16.18 | ||
| 80 | 100 | 10 | 22.19 | ||||||
| 250 | 266 | 8 | 50.9 | 80 | 102 | 11 | 24.68 | ||
| 80 | 108 | 14 | 32.45 | ||||||
| 250 | 273 | 11.5 | 74.16 | 85 | 98 | 6.5 | 14.67 | ||
| 85 | 100 | 7.5 | 17.11 | ||||||
| 300 | 320 | 10 | 76.45 | 85 | 105 | 10 | 23.43 | ||
| 90 | 102 | 6 | 14.2 | ||||||
| 320 | 340 | 10 | 81.38 | 90 | 105 | 7.5 | 18.03 | ||
| 90 | 108 | 9 | 21.97 | ||||||
| 400 | 426 | 13 | 132.4 | 90 | 110 | 10 | 24.66 | ||
| 90 | 114 | 12 | 30.18 | ||||||
competitive Advantage:
100% good quality and price
The best service in steel field.. Including after-sales service
Reasonable price. We only illing to do business with sincere buyers.
We could produce this pipe according American standard.
We are also a manufacturer,so we can provide the products in conformity with your requirements
rapidly Our company has rich technical force and advanced production equipment and coordinated
advanced test equipment and method.
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