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Many material or standard specifications include a number of different UNS numbers that may be used within that specification. For example: UNS S30400 (SAE 304, Cr/Ni 18/10, Euronorm 1.4301 stainless steel) could be used to make stainless steel bars ( ASTM A276 ) or stainless steel plates for pressure vessels ( ASTM A240 ) or pipes ( ASTM A312 ).
The alloy number is simply a general classifier, whereas it is the specification itself that narrows down the steel to a very specific standard. The SAE steel grade system's correspondence to other alloy numbering systems, such as the ASTM-SAE unified numbering system (UNS), can be seen in cross-referencing tables (including the ones given below).
However, while both 1050 and 1060 are covered by the same ISO standard, they are covered by different ASTM standards. As a wrought alloy, it is typically formed by extrusion or rolling. It is commonly used in the electrical and chemical industries, on account of having high electrical conductivity, corrosion resistance, and workability.
The A36 (UNS K02600) standard was established by the ASTM International. The standard was published in 1960 and has been updated several times since. [2] Prior to 1960, the dominant standards for structural steel in North America were A7 (until 1967 [3]) and A9 (for buildings, until 1940 [4]). [5] Note that SAE/AISI A7 and A9 tool steels are ...
The group developed a standard for the steel used to fabricate rails. In 1961 the name "American Society for Testing and Materials" was adopted. In 2001, ASTM officially changed its name to "ASTM International" and added the tagline "Standards Worldwide". [citation needed] In 2014, the tagline changed to "Helping our World Work better."
ASTM A992 is currently the most available steel type for structural wide-flange beams. The industry's technical institute describes the standard thus: "ASTM A992 (Fy = 50 ksi, Fu = 65 ksi) is the preferred material specification for wide-flange shapes, having replaced ASTM A36 and A572 grade 50. There are a couple of noteworthy enhancements ...
They provide better corrosion resistance, particularly chloride stress corrosion and chloride pitting corrosion, and higher strength than standard austenitic stainless steels such as A2/304 or A4/316. The main differences in composition, when compared with austenitic stainless steel is that duplex steels have a higher chromium content, 20–28% ...
X46Cr13 has good workability when hot, and potential to reach high hardness of up to 56 HRC. [4] [5] It contains a moderately high carbon ratio of approximately 0.46% which gives it a good compromise between high hardness and corrosion resistance for many applications.