Description / Abstract:
This SAE Recommended Practice outlines a procedure for selecting
the proper specification for carbon steel sheet and strip which are
purchased to make an identified part. Specifications considered
are:
ASTM A109—Steel, Carbon, Cold Rolled Strip.
ASTM A569—Steel, Carbon (0.15 maximum percent), Hot Rolled
Sheet, Commercial Quality (HRCQ).
ASTM A621—Steel, Sheet, Carbon, Hot Rolled, Drawing Quality
(HRDQ).
ASTM A622—Steel, Sheet, Carbon, Hot Rolled, Drawing Quality,
Special Killed (HRDQSK).
ASTMA568—Steel, Carbon and High-Strength Low-Alloy Hot Rolled
Sheet, and Cold Rolled Sheet, General Requirements.
ASTM A366—Steel, Carbon, Cold Rolled Sheet, Commercial Quality
(CRCQ).
ASTM A619—Steel, Sheet, Carbon, Cold Rolled, Drawing Quality
(CRDQ).
ASTM A620—Steel, Sheet, Carbon, Cold Rolled, Drawing Quality,
Special Killed (CRDQSK).
ASTM A749M—Steel, Carbon and High-Strength Low-Alloy, Hot Rolled
Strip, General Requirements.
ASTM A635—Steel Sheet and Strip, Carbon, Hot Rolled Commercial
Quality, Heavy Thickness Coils. (Metric ASTM documents are
designated by suffix M)
It also describes how codes or symbols for specifying certain
characteristics may be used in electronic data processing systems.
Characteristics covered are:
a. Hot or cold rolled. b. Sheet or strip.
c. Severity of draw (quality of steel).
d. Surface condition (finish, etc.).
e. Edge condition.
f. Dimensions. It is intended that other characteristics and
part identification be covered by a supplement to the
specification, as necessary.