Tiêu chuẩn quốc tế

Số hiệu

Standard Number

ASTM A800/A800M-01
Năm ban hành 2001

Publication date

Tình trạng W - Hết hiệu lực

Status

Tên tiếng Anh

Title in English

Standard Practice for Steel Casting, Austenitic Alloy, Estimating Ferrite Content Thereof
Chỉ số phân loại Quốc tế (ICS)

By field

77.140 - Sản phẩm sắt và thép
77.140.80 - Vật đúc và rèn sắt và thép
Số trang

Page

6
Giá:

Price

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Phạm vi áp dụng

Scope of standard

1.1 This practice covers procedures and definitions for estimating ferrite content in certain grades of austenitic iron-chromium-nickel alloy castings that have compositions balanced to create the formation of ferrite as a second phase in amounts controlled to be within specified limits. Methods are described for estimating ferrite content by chemical, magnetic, and metallographic means. 1.2 The grades covered by this practice are: CF-3, CF-3A, CF-8, CF-8A, CF-3M, CF-3MA, CF-8M, CF-8C, CG-8M, and CH-10. 1.3 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 must be used independently of the other. Combining values from the two systems may result in nonconformance with the practice. 1.4 This standard does not purport to address the safety problems, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use .