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Most ASTM and ASME standards list the steel grades by their UNS, (Unified Numbering system), numbers, but also make reference, where appropriate to the more general AISI, (American Iron and Steel Institute), grade designations. These grade numbering systems are widely used in the USA, where they originated and are recognised by most stainless steel specifiers and users. In Japan the AISI grade number is preceded by SUS, e.g. SUS 304. The chemical compositions of stainless steel grades covered in this article include AISI / common grade names 301, 301L, 301LN, 302, 302B, 303, XM-5, 303Plus, X, 303Se, 303Cu, 304, 304L, 302HQ, XM-21, 304HN, 304LN, 305, 308, 316, 316L 316Ti, 316Cb, 316LN, 317, 317L, 317LM, 317LMN, 317LN, 321, 347, 347F, 347FSe, 348, 384, 201, Gall-Tough, 202, XM-1, 203EZ, 205, XM-19, Nitronic 50, XM-31, Tenelon, XM-14, XM-17, 216, XM-18, 216L, Nitronic 60, 21-6-9, Nitronic 40, XM-11, XM-29, Nitronic 33, 18-2Mn, Nitronic 32, 18-18 Plus, 20Cb-3, 20Mo-4, 20Mo6, Sanicro28, AL-6X, AL-6XN, JS700, 904L, 1925hMo, Cronifer 1815, LCSi, 310MoLN, 254SMO, 654SMO, Nirosta 4565S, XM-15, 18-8-2, SAE grades 30301, 30302, 30302B, 30303, 30303Se, 30304, 30304L, 30305, 30308, 30316, 30316L, 30317, 30321, 30347, 30348, 30384, 30201, 30202, and UNS grades S30100, S30103, S30153, S30200, S30215, S30300, S30310, S30323, S30330, S30400, S30403, S30430, S30452, S30453, S30454, S30500, S30800, S31600, S31603, S31635, S31640, S31653, S31700, S31703, S31725, S31726, S31753, S32100, S34700, S34720, S34723, S34800, S38400, S20100, S20103, S20153, S20161, S20162, S20200, S20300, S20400, S20500, S20910, S21400, S21460, S21600, S21603, S21800, S21900, S21904, S24000, S24100, S28200, N08020, N08024, N08026, N08028, N08366, N08367, N08700, N08904, N08925, N08926, S30600, S30601, S31050, S31254, S31266, S31277, S32050, S32615, S32654, S34565, S35135, S38100, S38815.
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Most ASTM and ASME standards list the steel grades by their UNS, (Unified Numbering system), numbers but also make reference, where appropriate to the more general AISI, (American Iron and Steel Institute), grade designations. These grade numbering systems are widely used in the USA, where they originated and are recognised by most stainless steel specifiers and users. In Japan the AISI grade number is preceded by SUS, but this is not usually the case with duplex grades. The chemical compositions of stainless steel grades covered in this article include AISI / common grade names XM-26, 44LN, DP3, 3RE60, 2205, UR45N, 2304, Uranus 50, Uranus 52N+, Ferralium 255, 2507, Zeron 100, 329, 44L, 453S, 7Mo Plus, DP3W, AF918 and UNS grades S31100, S31200, S31260, S31500, S31803, S32001, S32003, S32101, S32205, S32304, S32404, S32520, S32550, S32750, S32760, S32900, S32906, S32950, S39226, S39274, S39277.
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Most ASTM and ASME standards list the steel grades by their UNS, (Unified Numbering system), numbers but also make reference, where appropriate to the more general AISI, (American Iron and Steel Institute), grade designations. These grade numbering systems are widely used in the USA, where they originated and are recognised by most stainless steel specifiers and users. In Japan the AISI grade number is preceded by SUS, e.g. SUS 430. The chemical compositions of stainless steel grades covered in this article include AISI / common grade names 403, 405, 409, 410S, 430, 430F, 430FSe, 434, 436, 442, XM-34, 18-2FM, Cronifer 2803Mo, 435, 439, 439LL, 444, 18Cr-2Mo, X-M33, 26-1Ti XM-27, NuMonit 25-4-4, Sea-cure, 26-3-3, 29-4, 29-4-2, SAE grades 51403, 51405, 51409, 51430, 51430F, 51430FSe, 51434, 51436, 51439, 51439LL, and UNS grades S18200, S18235, S40300, S40500, S40800, S40900, S40910, S40920, S40930, S40945, S40975, S40976, S40977, S41003, S41008, S41045, S41050, S41500, S41603, S42035, S43000, S43020, S43023, S43036, S43400, S43600, S44200, S32803, S43035, S43900, S43903, S43932, S43940, S44400, S44500, S44626, S44627, S44635, S44660, S44700, S44735, S44800, S46800.
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Most ASTM and ASME standards list the steel grades by their UNS, (Unified Numbering system), numbers but also make reference, where appropriate to the more general AISI, (American Iron and Steel Institute), grade designations. These grade numbering systems are widely used in the USA, where they originated and are recognised by most stainless steel specifiers and users. In Japan the AISI grade number is preceded by SUH, e.g. SUH 310. The chemical compositions of stainless steel grades covered in this article include AISI / common grade names 304H, 304N, 304HN, (XM-21), 309S, 309, 309H, 309Cb, 309HCb, 310S, 310, 310H, 310Cb, 310HCb, 314, 316H, 316N, 321H, 334, 347H, 348, 348H, 446, 616, Esshete 1250, 153MA, 253MA, 353MA, RA85H, Greek Ascoloy (615), Lapelloy (619), MT443, XM-32, 800 (332), 800H, SAE grades 30309, 30309S, 30310, 30310S, 30314, 51446, and UNS grades S21500, S30409, S30415, S30451, S30452, S30615, S30815, S30900, S30908, S30909, S30940, S30941, S31000, S31008, S31009, S31040, S31041, S31400, S31609, S31651, S32109, S33228, S33400, S34709, S34800, S34809, S35045, S35315, S41041, S41425, S41800, S42200, S42300, S44300, S44600, S64152, N08800, N08810, N08811.
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Most ASTM and ASME standards list the steel grades by their UNS (Unified Numbering system) numbers but also make reference, where appropriate to the more general AISI (American Iron and Steel Institute) grade designations. These grade numbering systems are widely used in the USA, where they originated and are recognised by most stainless steel specifiers and users. In Japan the AISI grade number is preceded by SUS eg SUS 630. The chemical compositions of stainless steel grades covered in this article include AISI / common grade names 410 414 416 416Se 420 420F 420FSe 429 431 440A 440B 440C 440F 440FSe 630 631 632 633 634 635 PH13-8Mo 15-5PH 15-7PH 17-4PH 17-7PH A286 Trim Rite XM-6 (416 Plus X) XM-13 XM-12 XM-16 Custom 455 XM-25 Custom 450 XM-30 SAE grades 51410 51414 51416 51416Se 51420 51420F 51420FSe 51429 51431 51440A 51440B 51440C 51440F 51440FSe and UNS grades S13800 S15500 S15700 S17400 S17600 S17700 S35000 S35500 S41000 S41040 S41400 S41500 S41600 S41610 S41623 S42000 S42010 S42020 S42023 S42900 S43100 S44002 S44003 S44004 S44020 S44023 S45000 S45500 S45503 S46500 S66286
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BS 3146-2 is the material standard for castings, to be made by the investment, (or lost wax), process and includes some stainless steels. The chemical composition of stainless steel grades covered in the this standard include ANC1-A, ANC1-B, ANC1-C, ANC2, ANC3-A, ANC3-B, ANC4-A, ANC4-B, ANC4C, ANC5-A, ANC5-B, ANC5-C, ANC6-A, ANC6-B, ANC6-C, ANC20A, ANC20B and ANC21
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BS 6258 is the material standard for stainless, one heat resisting, (310S31), and some carbon steel, (grades 490 and 600), hollow seamless ‘bars’, (essentially thick walled tubes or pipes), for machining. The chemical composition of stainless steel grades covered in this standard include 403S17, 430S17, 410S21, 420S29, 420S37, 431S29, 303S31, 302S31, 304S11, 304S15, 304S31, 321S31, 347S31, 316S11, 316S13, 316S31, 316S33, 320S31 and 310S31
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BS 6323 was the material standard for steel seamless and welded tubes for automobile, mechanical and general engineering purposes. Part 8 covered the requirements for longitudinally welded stainless steel tubes. This standard has been withdrawn and replaced by BS EN 10296-2 in December 2005. The chemical composition of stainless steel grades that were covered in BS 6323-8 included LW12, LW19, LW20, LW21, LW22, LW23 and LW24. These designations are related to the obsolete BS 1449-2 sheet grades 409S19, 304S11, 304S15, 316S13, 316S33 and 321S31 from which the welded tubes would have been made.
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BS EN 10217-7 2014 is the European standard: Welded stainless steel tubes for pressure purposes- Technical delivery conditions. It contains austenitic and duplex stainless steels. There are no ferritic, martensitic or heat resisting steels.
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BS EN 10296-3 and 10253-4 are the material standards for austenitic and duplex stainless steels for butt-welding fittings without and with specific inspection requirements. They were published in December 2008.
