ASTM A414/A414M : 13

Standard Specification for Steel, Sheet, Carbon, and High-Strength, Low-Alloy for Pressure Vessels

Standard Details

1.1 This specification² covers hot-rolled carbon steel sheet for pressure vessels involving fusion welding or brazing. Welding and brazing technique is of fundamental importance and shall be in accordance with commercial practices.

1.2 The following grades are included in this specification:

	Mechanical Requirements

Grade	Yield Strength, min		Tensile Strength, min
	ksi	MPa	ksi	MPa

A B C D E F G H	25 30 33 35 38 42 45 45	170 205 230 240 260 290 310 310	45 50 55 60 65 70 75 75	310 345 380 415 450 485 515 515

1.3 Hot-rolled carbon steel sheet is generally furnished in cut lengths and to decimal thickness only. Coils may be furnished, provided tension test specimens are taken to represent the middle of the slab as required by 6.1.3. The purchaser should recognize this may require cutting the coils to obtain test samples and results in half-size coils. The sheet is furnished to the following size limits:

	Width, in. [mm]

Thickness, in. [mm]	Over 12 [Over 300]

0.270 to 0.230 [7.0 to 6.0]	sheet (coils only)
Under 0.230 to 0.057 [6.0 to 1.5]	sheet

1.4 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 shall be used independently of the other. Combining values from the two systems may result in nonconformance with the specification.

1.5 Tolerances are found in General Requirements Specifications A568/A568M and A635/A635M. The appropriate General Requirements specification is applied based on the thickness and width of the product ordered.