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ASTM A210 Grade A1 Seamless Boiler Tubes
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ASTM A210 Grade A1 Seamless Boiler Tubes
STM A210 Grade A1 for Seamless Medium-Carbon Steel Boiler and Superheater Tubes.ASTM A210 Grade A1 Medium-Carbon Steel Boiler Tube suitable for seamless tube with minimum wall thickness.
ASTM A210/A210M
ASTM A210/A210M Standard Specification for Seamless Medium-Carbon Steel Boiler and Superheater Tubes
ASTM A210 Grade A1 Medium-Carbon Steel Boiler Tube Manufactor
beite steel pipe supply Boiler Tube for many years, every year sell more than 3000 tons of Boiler Tube.
beite steel pipe has already provided a series of high quality Boiler Tube, including: ASTM A210 Grade A1 Medium-Carbon Steel Boiler Tube, ASTM A210 Grade C Boiler Tube.
ASTM A210 Grade A1 Boiler Tube Quick Details
Company Name: beite steel pipe
Country/Region: China
Product Name：ASTM A210 Grade A1 Boiler Tube
FOB Price: US $1000-2000 / Ton | 1 Ton/Tons (Min. Order)
Port of Shipment：Tianjin,China
Payment：L/C or T/T
Package：Standard export package,suit for all kinds of transport, or as required
Certificate：ISO 9001-2000,PED 97/23/EC,ASME,DNV
ASTM A210 Grade A1 Boiler Tube Dimensional Range & Specification
Outside Diameter：12.7mm——127mm
Wall thickness：0.9mm——12.7mm
Length：6000mm、12000m or specified length as required.
Manufacture
The tubes shall be made by the seamless process and shall be either hot-finished or cold-finished, as specified.
Heat Treatment
Hot-finished tubes need not be heat treated. Cold- finished tubes shall be given a subcritical anneal, a full anneal, or a normalizing heat treatment after the final cold finishing process.
Surface Condition
If pickling or shot blasting or both are required, this shall be specifically stated in the order.
Chemical Composition
ASTM A210 Grade A1 Boiler Tube Chemical Composition(%)
| Standard | Grade | chemical composition: | ||||
| C | Si | Mn | P | S | ||
| ASTM A210 | A-1 | ≤0.27 | ≥0.10 | ≤0.93 | ≤0.035 | ≤0.035 |
| C | ≤0.35 | ≥0.10 | 0.29-1.06 | ≤0.035 | ≤0.035 | |
Mechanical Propertie
ASTM A210 Grade A1 Boiler Tube Mechanical & Physical Properties
| Standard | Grade | Tensile Strength(MPa) | Yield Strength(MPa) | Elongationδ(%) | ||
| ASTM A210 | A-1 | ≥ 415 | ≥ 255 | ≥30 | ||
| C | ≥485 | ≥275 | ≥30 | |||
Tensile Requirements
The material shall conform to the requirements as to tensile properties prescribed
Table 3 gives the computed minimum elongation values for each 1⁄32-in. [0.8-mm] decrease in wall thickness. Where the wall thickness lies between two values shown above, the minimum elongation value shall be determined by the following equation:
TABLE 3 Computed Minimum Elongation Values
| Wall Thickness, in. [mm] | Elongation in 2 in. or50 mm, min, %(A) |
| 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 |
E=48t +15.00【E=1.87+15.00 】
where:
E = elongation in 2 in. or 50 mm, %, and
t = actual thickness of specimen, in. [mm].
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—One tension test shall be made on a specimen for lots of not more than 50 tubes. Tension tests shall be made on specimens from two tubes for lots of more than 50 tubes.
Flattening Test—One flattening test shall be made on specimens from each end of one finished tube from each lot, but not the one used for the flaring test. Tears or breaks occurring at the 12 or 6 o’clock positions on Grade C tubing with sizes of 2.375 in. [60.3 mm] in outside diameter and smaller shall not be considered a basis for rejection.
Flaring Test—One flaring test shall be made on speci- mens from each end of the one finished tube from each lot , but not the one used for the flattening
Hardness Test—Brinell or Rockwell hardness tests shall be made on specimens from two tubes from each lot.
Hydrostatic or Nondestructive Electric Test—Each tube shall be subjected to the hydrostatic
When inserted in the boiler, tubes shall stand ex- panding and beading without showing cracks or flaws. When properly manipulated, superheater tubes shall stand all forging, welding, and bending operations necessary for application without developing defects.
ASTM A210 Grade A1 Boiler Tube Packaging & Delivery
Types of Packaging:
- Bundles (hexagonal)
- Wooden Boxes
- Crates (steel/wooden)
- Special crates for U-Bend tubes with each radius separated
- Our ASTM A210 Grade A1 Boiler Tube packing can meet any needs of the customers.
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