ASTM-A565 › Standard Specification for Martensitic Stainless Steel Bars for High-Temperature Service
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This guide covers standard specification for hot-finished and cold-finished martensitic chromium steel bars for high-temperature service. The mechanical properties shall be developed by suitable heat treatment, as indicated for each alloy. The steel shall conform to the required chemical composition for carbon, manganese, phosphorus, sulfur, silicon, chromium, nickel, molybdenum, vanadium, tungsten, nitrogen, aluminum, columbium, and copper. The microstructure shall not contain more than 5% delta-ferrite after full heat treatment. The material shall conform to the required mechanical properties such as tensile strength, yield strength, elongation, impact strength, and Brinell hardness. The material shall also undergo stress rupture testing using a combination test bar.
Scope
1.1 This specification covers hot-finished and cold-finished martensitic chromium steel bars for high-temperature service. The mechanical properties are developed by suitable heat treatment, as indicated for each alloy.
1.2 Where strength at temperature is a factor, these steels are generally limited to a maximum service temperature of 1200°F [650°C]. For oxidation (scaling) resistance and at low stresses, these steels are useful to 1450°F [790°C].
1.3 This specification is expressed in both inch-pound units and SI units; however, unless the purchase order or contract specifies the applicable M specification designation (SI units), the inch-pound units shall apply. 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 may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the specification.
Keywords
martensitic stainless steel; stainless steel bars; stainless steel billets; stainless steel forgings; temperature service applications—high;; ICS Number Code 77.140.60 (Steel bars and rods); 77.140.85 (Iron and steel forgings)
To find similar documents by ASTM Volume:
01.03 (Steel--Plate, Sheet, Strip, Wire; Stainless Steel Bar)
01.05 (Steel--Bars, Forgings, Bearing, Chain, Tool)
To find similar documents by classification:
77.140.60 (Steel bars and rods)
77.140.85 (Iron and steel forgings)
To find similar documents by Federal Supply Class Code:
FSC Standardization Area FORG (Forgings)
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Document Number
ASTM-A565/A565M-10(2017)e1
Revision Level
2010 R17(E1) EDITION
Status
Current
Modification Type
Reapproval with Ed Change
Publication Date
March 15, 2017
Document Type
Specification
Page Count
4 pages
Committee Number
A01.17