Tiêu chuẩn quốc tế
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Số hiệu
Standard Number
ASTM A232/A232M-99
Năm ban hành 1999
Publication date
Tình trạng
W - Hết hiệu lực
Status |
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Tên tiếng Anh
Title in English Standard Specification for Chromium-Vanadium Alloy Steel Valve Spring Quality Wire
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Chỉ số phân loại Quốc tế (ICS)
By field |
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Số trang
Page 4
Giá:
Price Liên hệ / Contact us
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Phạm vi áp dụng
Scope of standard 1.1 This specification covers the highest quality of round 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. This wire shall be either in the annealed and cold-drawn or oil-tempered condition as specified by the purchaser. 1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. Within the text, the inch-pound units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system must be used independent of the other.
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