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EN 10027-1 steel grade designation system. European standard steel grade names fall into two categories: [1] Steel specified by purpose of use and mechanical properties. Steel specified by chemical composition. The inclusion of a letter 'G' before the code indicates the steel is specified in the form of a casting.
The SAE steel grades system is a standard alloy numbering system (SAE J1086 – Numbering Metals and Alloys) for steel grades maintained by SAE International. In the 1930s and 1940s, the American Iron and Steel Institute (AISI) and SAE were both involved in efforts to standardize such a numbering system for steels.
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 ).
1.4310 X10CrNi18-8 301 0.10 17.5 NS: 8 NS: 1420 For springs 1.4301 X5CrNi18-10 304 < 0.07 18.5 NS: 9 NS: 1450 A very common austenitic stainless steel grade 1.4307 X2CrNi18-9 304L < 0.030 18.5 NS: 9 NS: 1450 Similar to the above but not susceptible to intergranular corrosion thanks to a lower C content. 1.4305 X8CrNiS18-9 e: 303 < 0.10 18 NS: 9 ...
2610-05-1: Direct yellow 4 Brilliant fast yellow Direct yellow 4 24890 diazo 3051-11-4: Direct yellow 106 Brilliant fast yellow Direct yellow 106 40300 stilbene 12222-60-5: Disperse blue 1 1,4,5,8-Tetraaminoanthraquinone Disperse blue 1 Solvent blue 18 64500 anthraquinone 2475-45-8: Disperse blue 124 Disperse blue 124 111938 azo 61951-51-7 ...
[1] Three distinct alloys are identified in the galvannealed surface. From the steel boundary these are named the Gamma (Γ), Zeta (ζ), and Delta (δ) layers, of compositions Fe 3 Zn 10, FeZn 10, FeZn 13 respectively; resulting in an overall bulk iron content of 9-12%. The layers also contain around 1-4% aluminium.
Solution of sodium polysulfide 2.5%, items must be submerged in the solution after color developing, wash, dry and wax or varnish colored object. [27] Brown for copper. Items are boiled in at least 3-day-old water solution of 12% copper sulfate, after color being developed, the material is washed, dried and waxed or varnished. [27] Black for iron
904L is an austenitic stainless steel.It is softer than 316L, [1] [2] and its molybdenum addition gives it superior resistance to localized attack (pitting and crevice corrosion) by chlorides and greater resistance reducing acids; in particular, its copper addition gives it useful corrosion resistance to all concentrations of sulfuric acid.