ASTM A210 Grade A1 Seamless Boiler and Superheater Tubes
 
 
 
ASTM A210 Grade A1 Seamless Medium-Carbon Steel Boiler and Superheater Tubes
 
 
Standard:ASTM A210/A210M
 
 
ASTM A210 Grade A1 Steel Tubes covers minimum-wall-thickness, Seamless Medium-Carbon Steel, boiler tubes
 
 
 
ASTM A210 Grade A1 Seamless Boiler and Superheater Tubes sizes and thicknesses usually furnished to this specification are 1/2 in. to 5 in. [12.7 to 127 mm] in outside diameter and 0.035 to in. 0.500 [0.9 to 12.7 mm], inclusive, in minimum wall thickness.
 
 
 
ASTM A210 Grade A1 Seamless Boiler and Superheater Tubes Quick Details
Manufacture:Seamless process ,Hot-finished or Cold-finished
Wall thickness(WT): 0.9 mm——12.7 mm.
Outer diameter (OD): 12.7 mm——127 mm
Length: 6M or specified length as required.
Ends: Plain End, Beveled End, Treaded
 
Additional Info
Port of Shipment: Tianjin, China
Payment Terms:T / T, LC
Delivery: 7-15 days after payment
Surface: Tubes will be varnished (Outside only) to prevent rust.
Marking: Standard + Steel Grade + Size + Heat No + Lot No
Package: Bundles (hexagonal),Wooden Boxes,Crates (steel/wooden) or as required
 
ASTM A210 Grade A1 Seamless Boiler and Superheater Tubes
 

OD (mm)

Wall Thickness(mm)

2

2.5

3

3.5

4

4.5

5

6

6.5-7

7.5-8

8.5-9

9.5-10

11

12

Φ25-Φ28

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Φ32

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Φ34-Φ36

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Φ38

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Φ40

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Φ42

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Φ45

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Φ48-Φ60

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Φ63.5

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Φ68-Φ73

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Φ76

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Φ80

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Φ83

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Φ89

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Φ95

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Φ102

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Φ108

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Φ114

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Φ121

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Φ127

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Manufacture
ASTM A210 Grade A1 Seamless boiler tubes are made by the seamless process and are 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.
 
 
Chemical Composition Of ASTM A210 Grade A1
 

Standard	Grade	chemical composition:
		C（a）	Si	Mn	P	S
ASTM A210	A-1	≤0.27	≥0.10	≤0.93	≤0.035	≤0.035

 
 
 
Mechanical  Properties Of ASTM A210 Grade A1
 

Mechanical  Properties	Grade A-1
Tensile strength, min, ksi [MPa]	60 [415]
Yield strength, min, ksi [MPa]	37 [255]
Elongation %	30
HRB	79
HB	143

 
Note:Mechanical property requirements do not apply to tubing smaller than 1/8 in.
 
 
 
The dimensional tolerances of ASTM A210 Seamless Medium-Carbon Steel Boiler and Superheater Tubes
s
 
 
Tolerances of  Wall Thickness
 

Outside Diameter, in. [mm]	Wall Thickness, %
	0.095[2.4] and Under		Over 0.095 to 0.150 [2.4 to 3.8], incl		Over 0.150 to 0.180 [3.8 to 4.6], incl		Over 0.180,[4.6]
	Over	Under	Over	Under	Over	Under	Over	Under
Seamless, Hot-Finished Tubes
4 [101.6] and under	40	0	35	0	33	0	28	0
Over4 [101.6]	....	....	35	0	33	0	28	0
Seamless, Cold-Finished Tubes
	Over				Under
1 1 ⁄ 2 [38.1] and under	20				0
Over 1 1 ⁄ 2 [38.1]	22				0

 
 
Tolerances of  Outside Diameter
 

Outside Diameter,in. [mm]	Permissible Variations, in. [mm]
	Over	Under
Hot-Finished Seamless Tubes
4 [101.6] and under	1 ⁄ 64 [0.4]	1 ⁄ 32 [0.8]
Over 4 to 7 1 ⁄ 2 [101.6 to 190.5], incl	1 ⁄ 64 [0.4]	3 ⁄ 64 [1.2]
Over 7 1 ⁄ 2 to 9 [190.5 to 228.6], incl	1 ⁄ 64 [0.4]	1 ⁄ 16 [1.6]
Cold-Finished Seamless Tubes
Under 1 [25.4]	0.004 [0.1]	0.004 [0.1]
1 to 1 1 ⁄ 2 [25.4 to 38.1], incl	0.006 [0.15]	0.006 [0.15]
Over 1 1 ⁄ 2 to 2 [38.1 to 50.8], excl	0.008 [0.2]	0.008 [0.2]
2 to 2 1 ⁄ 2 [50.8 to 63.5], excl	0.010 [0.25]	0.010 [0.25]
2 1 ⁄ 2 to 3 [63.5 to 76.2], excl	0.012 [0.3]	0.012 [0.3]
3 to 4 [76.2 to 101.6], incl	0.015 [0.38]	0.015 [0.38]
Over 4 to 7 1 ⁄ 2 [101.6 to 190.5], incl	0.015 [0.38]	0.025 [0.64]
Over 7 1 ⁄ 2 to 9 [190.5 to 228.6], incl	0.015 [0.38]	0.045 [1.14]

 
Tolerances of Length
 

Method of Manufacture	Outside Diameter, in. [mm]	Cut Length,in. [mm]
		Over	Under
Seamless, hot-finished	All sizes	3 ⁄ 16 [5]	0 [0]
Seamless, cold-finished	Under 2 [50.8]	1 ⁄ 8 [3]	0 [0]
	2 [50.8] and over	3 ⁄ 16 [5]	0 [0]
	2 [50.8] and over	3 ⁄ 16 [5]	0 [0]

 
 
 
Mechanical Tests Required
(1)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 .
(2)Flattening Test—One flattening test shall be made on specimens from each end of one finished tube from each lot.
(3)Flaring Test—One flaring test shall be made on speci- mens from each end of the one finished tube from each lot.
(4)Hardness Test—Brinell or Rockwell hardness tests shall be made on specimens from two tubes from each lot .
(5)Hydrostatic or Nondestructive Electric Test—Each tube shall be subjected to the hydrostatic,
 
 
 
 
ASTM A210 Grade A1 Seamless Boiler Tubes Marking
In addition to the marking prescribed in Specification A 450/A 450M, the marking shall indicate whether the tube is hot-finished or cold-finished.
 
 
Surface Condition
If pickling or shot blasting or both are required, this shall be specifically stated in the order.
 
 
Ordering Information
Orders for material includes the following, as required, to describe the desired material adequately:
(1)Quantity (feet, metres, or number of lengths),
(2) Name of material (seamless tubes),
(3) Grade,
(4) Manufacture (hot-finished or cold-finished),
(5) Size (outside diameter and minimum wall thickness),
(6) Length (specific or random),
(7) Test report required, (see Certification Section of Specification A 450/A 450M),
(8) Special requirements.
 
 
Note: Material furnished under ASTM A210 conform to the applicable requirements of the current edition of Specification A 450/A 450M
 
 
Photos of ASTM A209 Grade T1 Alloy-Steel Boiler and Superheater Tubes