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Code of Federal Regulations Title 49. Transportation § 49.179.300–7 Materials

Current as of January 02, 2025 | Updated by Findlaw Staff

(a) Steel plate material used to fabricate tanks must conform with the following specifications with the indicated minimum tensile strength and elongation in the welded condition. However, the maximum allowable carbon content for carbon steel must not exceed 0.31 percent, although the individual ASTM specification may allow for a greater amount of carbon. The plates may be clad with other approved materials:

Specifications 2

Tensile
strength
(psi) welded
condition 1(minimum)

Elongation
in 2 inches
(percent)
welded
condition 1
(longitudinal)
(minimum)

ASTM A 240/A 240M type 304․․․․․․․․․․․․․․․․․․․․․․․

75,000

25

ASTM A 240/A 240M type 304L․․․․․․․․․․․․․․․․․․․․․․

70,000

25

ASTM A 240/A 240M type 316․․․․․․․․․․․․․․․․․․․․․․․

75,000

25

ASTM A 240/A 240M type 316L․․․․․․․․․․․․․․․․․․․․․․

70,000

25

ASTM A 240/A 240M type 321․․․․․․․․․․․․․․․․․․․․․․․

75,000

25

ASTM A 285 Gr. A․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․

45,000

29

ASTM A 285 Gr. B․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․

50,000

20

ASTM A 285 Gr. C․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․

55,000

20

ASTM A 515/A 515M
Gr. 65․․․․․․․․․․․․․․․․․․․․․․․․․

65,000

20

ASTM A 515/A 515M
Gr. 70․․․․․․․․․․․․․․․․․․․․․․․․․

70,000

20

ASTM A 516/A 516M
Gr. 70․․․․․․․․․․․․․․․․․․․․․․․․․

70,000

20

1 Maximum stresses to be used in calculations.

2 These specifications are incorporated by reference (IBR, see § 171.7 of this subchapter.)

(b) [Reserved]

(c) All plates must have their heat number and the name or brand of the manufacturer legibly stamped on them at the rolling mill.

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Cite this article: FindLaw.com - Code of Federal Regulations Title 49. Transportation § 49.179.300–7 Materials - last updated January 02, 2025 | https://codes.findlaw.com/cfr/title-49-transportation/cfr-sect-49-179-300-7/

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