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ASTM A955/A955M-14
Standard Specification for Deformed and Plain Stainless-Steel Bars for Concrete Reinforcement
Automaticky přeložený název:
Standardní specifikace pro deformované a Plain nerezové ocelové tyče pro vyztužení betonu
NORMA vydána dne 1.3.2014
Informace o normě:
Označení normy: ASTM A955/A955M-14
Poznámka: NEPLATNÁ
Datum vydání normy: 1.3.2014
Kód zboží: NS-4991
Počet stran: 13
Přibližná hmotnost: 39 g (0.09 liber)
Země: Americká technická norma
Kategorie: Technické normy ASTM
Anotace textu normy ASTM A955/A955M-14 :
Keywords:
concrete reinforcement, corrosion resistance, deformations (protrusions), magnetic properties, stainless steel bars, ICS Number Code 77.140.60 (Steel bars and rods)
Doplňující informace
| 1. Scope | ||||||||||||||||||||||||
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1.1 This specification covers deformed and plain stainless-steel bars for concrete reinforcement in cut lengths and coils used in applications requiring resistance to corrosion or controlled magnetic permeability. The standard sizes and dimensions of deformed bars and their numerical designation shall be those listed in Table 1. The text of this specification references notes and footnotes which provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of the specification. 1.1.1 Supplementary requirement (S1) of an optional nature is provided. It shall apply only when specified by the purchaser. In order to obtain a controlled magnetic permeability product, steel conforming to Supplementary Requirement S1 should be ordered. 1.2 The chemical composition of the stainless steel alloy shall be selected for suitability to the application involved by agreement between the manufacturer and the purchaser. This is an important consideration in achieving the desired corrosion resistance or controlled magnetic permeability, or both, because these properties are not provided by all stainless steels. 1.3 Requirements for the relative
deformation area of three-sided deformed bars are contained in
1.4 Bars are of two minimum yield
strength levels, namely, 60 000 [420 MPa] and 75 000 psi [520 MPa],
designated as Grade 60 [420] and Grade 75 [520], respectively.
1.5 Plain bars in sizes up to and including 2 in. [50.8 mm] in diameter in coils or cut lengths, when ordered, shall be furnished under this specification in Grade 60 [420] and Grade 75 [520], respectively. Bending properties, when required, shall be by agreement between the manufacturer and purchaser. Requirements providing for deformations and marking shall not be applicable to plain bars. 1.6 Weldability of most stainless steel compositions is generally good, however, pre-weld or post-weld procedures, or both, are necessary. Where material is to be welded, a welding procedure suitable for the chemical composition and intended use or service shall be used. Retesting of physical properties should be considered following welding procedures depending upon the steel composition and welding operation involved. 1.7 This specification is applicable
for orders in either inch-pound units (as Specification A955) or in
SI units (as Specification A955M).
1.8 The values stated in either inch-pound 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 shall be used independently of the other. Combining values from the two systems may result in nonconformance with the standard. 1.9 This standard does not purport to address all of the safety concerns, 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. |
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| 2. Referenced Documents | ||||||||||||||||||||||||
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