ASTM A 878/A878M : 2017-09
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
SPECIFICATION FOR STEEL WIRE, MODIFIED CHROMIUM VANADIUM VALVE SPRING QUALITY
01-15-2020
09-01-2017
CONTAINED IN VOL. 01.03, 2017 Defines the highest quality of round modified chromium vanadium alloy steel valve spring wire, uniform in quality and temper, intended for the manufacture of valve springs and other springs requiring high-fatigue properties when used at moderately elevated temperatures.
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