Tiêu chuẩn quốc tế

• Số hiệu / Standard Number: ASTM A942/A942M-95(2012)E1
• Năm ban hành / Publication date: 2012
• Tình trạng / Status: W - Hết hiệu lực
• Tên tiếng Anh / Title in English: Standard Specification for Centrifugally Cast White Iron/Gray Iron Dual Metal Abrasion-Resistant Roll Shells
• Chỉ số phân loại Quốc tế (ICS) / By field: 77.140.50 - Sản phẩm và bán sản phẩm thép tấm
• Số trang / Page: 2

Phạm vi áp dụng / Scope of standard

1.1 This specification covers double pour, centrifugally cast, abrasion-resistant roll shells for general application. The outer layer is white iron and the inner layer is gray iron. There shall be no gradient of mottled iron between the white iron and the gray iron.

1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.

1.2.1 Within the text, the SI units are shown in brackets.