Hebei Lufeng Piping Equipment Co., Ltd.
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Product Specification
ASME SA-210 SPECIFICATION FOR SEAMLESS MEDIUM-CARBON STEEL BOILER AND SUPERHEATER TUBES
Chemical Composition (max. %)
| Element | Grade A-1 | Grade C |
| C | 0.27 | 0.35 |
| Mn | 0.93 | 0.29-1.06 |
| P | 0.035 | 0.035 |
| S | 0.035 | 0.035 |
| Si | ≥0.10 | 0.10 |
For each reduction of 0.01% below the specified carbon maximum, an increase of 0.06% manganese above the specified maximum will be permitted up to a maximum of 1.35%.
Tensile Requirements
| Element | Grade A-1 | Grade C |
| Tensile strength, min, ksi [MPa] | 60 [415] | 70 [485] |
| Yield strength, min, ksi [MPa] | 37 [255] | 40 [275] |
| Elongation in 2 in. or 50 mm, min, % | 30 | 30 |
|
For longitudinal strip tests, a deduction shall be made for each 1/32 in. [0.8mm] decrease in wall thickness under 5⁄16 in. [8 mm] from the basic minimum elongation of the following percentage points |
1.50 A | 1.50 A |
| When standard round 2 in. or 50 mm gage length or smaller proportionally sized specimen with the gage length equal to 4D (four times the diameter) is used | 22 | 20 |
A See Table below for the computed minimum values.
| Wall Thickness, in. [mm] | Elongation in 2 in. or 50 mm, min, % |
| 5/16 (0.312) [8] | 30 |
| 9/32 (0.281) [7.2] | 28 |
| 1/4 (0.250) [6.4] | 27 |
| 7/32 (0.219) [5.6] | 26 |
| 3/16 (0.188) [4.8] | 24 |
| 5/32 (0.156) [4] | 22 |
| 1/8 (0.125) [3.2] | 21 |
| 3/32 (0.094) [2.4] | 20 |
| 1/16 (0.062) [1.6] | 18 |
| 0.062 to 0.035 [1.6 to 0.9], excl | 17 |
| 0.035 to 0.022 [0.9 to 0.6], excl | 16 |
| 0.022 to 0.015 [0.6 to 0.4], incl | 16 |
Hardness Requirements
The tubes shall have a hardness not exceeding the following: 79 HRB or 143 HB for Grade A-1, 89 HRB or 179 HB for Grade C.
Mechanical Tests Required
Tension Test
Flattening Test
Flaring Test
Hardness Test
Hydrostatic or Nondestructive Electric Test
Company Details
Business Type:
Manufacturer,Exporter,Trading Company
Year Established:
2008
Total Annual:
$1,000,000-$5,000,000
Employee Number:
50~100
Ecer Certification：
Verified Supplier
Hebei Lufeng Piping Equipment Co., Ltd. is ISO 9001 certified exporter & supplier of steel piping materials. We are committed to provide customers quality products with competitive prices and efficiency service. Established in 2008, our experienced and friendly staffs are dedic... Hebei Lufeng Piping Equipment Co., Ltd. is ISO 9001 certified exporter & supplier of steel piping materials. We are committed to provide customers quality products with competitive prices and efficiency service. Established in 2008, our experienced and friendly staffs are dedic...
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