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SA210-A1 seamless, length 5.8 meters each pipe, outer diameter 63.43 mm, thickness 6.5 mm.

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Product Description

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