Tiêu chuẩn quốc tế
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Số hiệu
Standard Number
ASTM E1921-18a
Năm ban hành 2018
Publication date
Tình trạng
W - Hết hiệu lực
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Tên tiếng Anh
Title in English Standard Test Method for Determination of Reference Temperature, To, for Ferritic Steels in the Transition Range
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Chỉ số phân loại Quốc tế (ICS)
By field |
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Số trang
Page 39
Giá:
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Phạm vi áp dụng
Scope of standard This test method covers the determination of a reference temperature, To, which characterizes the fracture toughness of ferritic steels that experience onset of cleavage cracking at elastic, or elastic-plastic KJc instabilities, or both. The specific types of ferritic steels (3.2.1) covered are those with yield strengths ranging from 275 to 825 MPa (40 to 120 ksi) and weld metals, after stress-relief annealing, that have 10?% or less strength mismatch relative to that of the base metal.
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