SUPERSEDED (see Active link, below)
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1.1 This specification 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:
|Grade||Yield Strength, min||Tensile Strength, min|
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 . The purchaser should recognize this requires 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 to 48|
[Over 300 to 1200]
|0.270 to 0.230 [7.0 to 6.0]||sheet (coils only)||sheet (coils only)|
|Under 0.230 to 0.180 [6.0 to 4.5]||sheet||sheet (coils only)|
|Under 0.180 to 0.057 [under 4.5 to 1.5]||sheet||sheet|
A For thicknesses greater than 0.230 in. [6.0 mm], the thickness tolerances of Specification A 635/A 635M apply.
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.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
A370 Test Methods and Definitions for Mechanical Testing of Steel Products
A568/A568M Specification for Steel, Sheet, Carbon, Structural, and High-Strength, Low-Alloy, Hot-Rolled and Cold-Rolled, General Requirements for
A635/A635M Specification for Steel, Sheet and Strip, Heavy-Thickness Coils, Hot-Rolled, Alloy, Carbon, Structural, High-Strength Low-Alloy, and High-Strength Low-Alloy with Improved Formability, General Requirements for
A941 Terminology Relating to Steel, Stainless Steel, Related Alloys, and Ferroalloys
ICS Number Code 77.140.30 (Steels for pressure purposes); 77.140.50 (Flat steel products and semi-products)
UNSPSC Code 30264000(Carbon steel sheets); 30264200(Specialty steel sheets)