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ASTM A413/A413M-21
Standard Specification for Carbon Steel Chain
Name übersetzen
NORM herausgegeben am 1.1.2021
Informationen über die Norm:
Bezeichnung normen: ASTM A413/A413M-21
Ausgabedatum normen: 1.1.2021
SKU: NS-1020153
Zahl der Seiten: 4
Gewicht ca.: 12 g (0.03 Pfund)
Land: Amerikanische technische Norm
Kategorie: Technische Normen ASTM
Kategorie - ähnliche Normen:
Die Annotation des Normtextes ASTM A413/A413M-21 :
This specification covers carbon steel chain for such applications as railroad cars, construction, industrial uses, load binding, and general purposes other than overhead lifting. The three classes of carbon steel chains covered here include Grade 30 (proof coil chain), Grade 43 (high test chain), and Grade 70 (transport chain). The dimensional requirements of the chain with respect to the appropriate grade and size are presented. The mechanical testing requirements for the steel includes, proof testing, breaking force testing, and elongation testing. One test for breaking strength and elongation shall be made from each lot. The elongation and breaking force tests may be performed at the same time on the same test specimen.
Keywords:
chain, steel chain,, ICS Number Code 77.140.65 (Steel wire, wir ropes and link chains)
Ergänzende Informationen
| 1. Scope | ||||||
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1.1?This specification covers carbon steel chain for such applications as railroad cars, construction, industrial uses, load binding, and general purposes other than overhead lifting. Note 1:?This specification does not cover carbon steel chain
for sprocket applications.
1.2?Three classes of carbon steel chain are covered: 1.2.1?Grade 30Proof coil chain. 1.2.2?Grade 43High test chain. 1.2.3?Grade 70Transport chain. 1.3?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. 1.4?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. 1.4.1?Metric UnitsGrade = 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) 1.4.2?English UnitsGrade = 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) 1.4.3?MBF = minimum breaking force (lb or kN); d = chain diameter (in. or mm). Note 2:?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.
1.5?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. |
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| 2. Referenced Documents | ||||||
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