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

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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

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

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