$23
ASTM A391/A391M-21
2021
Standard Specification for Grade 80 Alloy Steel Chain
- Format:
- Language(s) :
- Published :
- English
- 01/01/2021
1.1''This specification covers Grade 80 heat-treated alloy steel chain for such applications as slings, lifting assemblies, and load binding. For overhead lifting applications, only alloy chain should be used.
1.2''The chain grade is based on the nominal stress in the link at the design breaking force strength. It is calculated by taking the minimum breaking force load and dividing by two times the nominal cross-sectional area of the link.
1.3''The values stated in either SI units or in other units are to be regarded separately as standard. The values stated in each system are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined.
1.3.1''Metric Units'''Grade = 1/10''of the minimum breaking force in kilonewtons divided by two times the nominal cross-sectional area in square millimeters. = (MBF)/(0.005)('')(d)(d)
1.3.2''English Units'''Grade = 0.000689 of the minimum breaking force in pounds divided by two times the nominal cross-sectional area in square inches. = (0.000689)(MBF)/(0.5)('')(d)(d)
1.3.3''MBF = minimum breaking force (lb or kN); d = chain diameter (in. or mm).
Note 1:''The above formulas are for round diameter links only. If different cross sections are used, the actual cross section of the link would need to be calculated and used.
1.4''This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
| ASTM A391/A391M-21 | |
|---|---|
| STANDARD INFO: | |
| Standard Name | ASTM A391/A391M-21 |
| Scope | Standard Specification for Grade 80 Alloy Steel Chain |
| Publisher | ASTM - ASTM International |
| Languages | English |
| State | |
| Publication Year | 2021 |
| Most recent Version | MOST RECENT |
| Whether to be replaced | |
| Addendum | |
| FILE INFO: | |
| File Size | 1 file , 77 KB |
| Note | This product is unavailable in Russia, Ukraine, Belarus |
| Number of Pages | 4 |
| Published | 01/01/2021 |
| Redline File Size | 2 files , 150 KB |
| ASTM A391/A391M-21 | ||
|---|---|---|
| History | Publisher Year | |
| ASTM A391/A391M-21 | 2021 | Current |
| ASTM A391/A391M-07(2012) | 2012 | |
| ASTM A391/A391M-07 | 2007 | |
| ASTM A391/A391M-01 | 2001 | |
| ASTM A391/A391M-98 | 2001 | |
| ASTM A391-65 | 1965 |
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