ASTM A210 Seamless Steel Tube

is the standard covers seamless medium-carbon steel boiler and superheater tubes. Seamless medium for boiler tube and boiler flue pipe, including a minimum wall thickness of the security side, the dome and the support tube and superheater tubes.

ASTM A210 also covers minimum-wall-thickness, tubing sizes, boiler flues including safe ends, arch and stay tubes. ASTM A210 provides tensile and hardness properties but only applicable to certain size limitations. Material manufacturing shall be killed. Tubes shall be made by seamless process, marked as either hot-finished or cold-finished. Surface condition shall be specifically stated in the order. Chemical composition shall conform to the requirements. Elemental composition other than listed here shall not be permitted. Tension test, flattening test, flaring test, hardness test, hydrostatic or nondestructive electric test shall be made on specimens. Superheater tubes shall be formed without defects and shall withstand expansion, beading, forging, welding, and bending.

This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.

Scope of ASTM A210

This specification covers minimum-wall-thickness, seamless medium-carbon steel, and boiler flues, including safe ends (see Note 1), arch and stay tubes, and superheater tubes.
Note 1—This type is not suitable for safe ending by forge welding.
The tubing sizes and thicknesses usually furnished to this specification are ½ in. to 5 in. [12.7 to 127 mm] in outside diameter and 0.035 to 0.500 in. [0.9 to 12.7 mm], inclusive, in minimum wall thickness. Tubing having other dimensions may be furnished, provided such tubes comply with all other requirements of this specification.
Mechanical property requirements do not apply to tubing smaller than 1/8 in. [3.2 mm] in inside diameter or 0.015 in. [0.4 mm] in thickness.
The values stated in either inch-pound units or SI units are to be regarded separately as standard. Within the text, the SI units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other. Combining values from the two systems may result in nonconformance with the specification. The inch-pound units shall apply unless the “M” designation of this specification is specified in the order.

Mechanical Properties:
Grade C(Max) Mn Si(Min) P(Max) S(Max)
A1 0.27 Max.0.93 0.10 0.035 0.035
C 0.35 0.29~1.06 0.10 0.035 0.035
Chemical composition:
Grade Tensile Strength(Mpa) Yield Strength(Mpa) Elongation (%)
A1 ≥ 415 ≥ 255 ≥ 30
C ≥ 485 ≥ 275 ≥ 30

Delivery Condition:Annealed, Normalized, Normalized and Tempered
Surface treatment: Oil-dip, Varnish, Passivation, Phosphating, Shot Blasting

Application:
For high, middle, low pressure boiler and pressure purpose
Both ends of each crate will indicate the order no., heat no., dimensions, weight and bundles or as requested.

Nominal wall thickness for ASTM A210 Steel Pipe

Hot rolled Outside Diameter , mm Tolerance, %
OD≤101.6, WT≤2.4 +40/-0
OD≤101.6, 2.4<WT≤3.8 +35/-0
OD≤101.6, 3.8<WT≤4.6 +33/-0
OD≤101.6, WT>4.6 +28/-0
OD>101.6, 2.4<WT≤3.8 +35/-0
OD>101.6, 3.8<WT≤4.6 +33/-0
OD>101.6, WT>4.6 +28/-0
Cold Drawn Outside Diameter , mm Tolerance, %
OD≤38.1 +20/-0
OD>38.1 +22/-0

Available Sizes and Grades

Sr. No. Steel Grade Tube Specification Supply Condition FINAL OD FINAL OD FINAL THICKNESS FINAL THICKNESS Average Length Average Length Quantity Quantity
in mm in inches in mm in inches in meters in feet in Nos. in MT
1 SAE 1019 SA 210 Gr. C CDS 57.15 2.25 6.35 0.25 3.5 11.48 17 0.474
2 SAE 1019 SA 210 Gr. C CDS 57.15 2.25 6.35 0.25 6 19.69 6 0.286
3 SAE 1019 SA 210 Gr. C CDS 57.15 2.25 6.35 0.25 6.1 20.01 32 1.553
4 SAE 1019 SA 210 Gr. C CDS 57.15 2.25 6.35 0.25 7.6 24.93 11 0.665
5 SAE 1019 SA 210 Gr. C CDS 57.15 2.25 6.35 0.25 8 26.25 17 1.082
6 SAE 1026 SA 210 Gr. C CDS 51 2.01 7.10 0.28 3 9.84 98 2.261
7 SAE 1026 SA 210 Gr. C CDS 51 2.01 7.10 0.28 6.5 21.33 103 5.148
8 SAE 1026 SA 210 Gr. C CDS 51 2.01 7.10 0.28 6.5 21.33 97 4.848
9 SAE 1026 SA 210 Gr. C CDS 51 2.01 7.10 0.28 12.05 39.53 334 30.947
10 SAE 1026 SA 210 Gr. C CDS 51 2.01 7.10 0.28 12.15 39.86 885 82.683
11 SAE 1026 SA 210 Gr. C CDS 51 2.01 7.10 0.28 13 42.65 959 95.864
12 SAE 1026 SA 210 Gr. C CDS 63.50 2.50 7.49 0.29 3.5 11.48 18 0.652
13 SAE 1026 SA 210 Gr. C CDS 63.50 2.50 7.10 0.28 12.15 39.86 426 51.13
14 SAE 1026 SA 210 Gr. C CDS 63.50 2.50 12.00 0.47 12.15 39.86 126 23.341

Rifled tubes are used in boilers to provide highly energy efficient means of heat transfer.