The International Organization for Standardization (ISO) is a worldwide federation of national standards bodies, at present comprising some 130 members, one in each country. The object of ISO is to promote the development of standardization and related activities in the world with a view to facilitating international exchange of goods and services, and to developing co-operation in the sphere of intellectual, scientific, technological and economic activity. The results of ISO technical work are published as International Standards. Among these International Standards are standards which are developed for metals and their alloys, including their designations. The letters ISO alone indicate the document is a standard, ISO/R or ISO R indicates a recommendation, and ISO/TR represents a technical report. Example: ISO 2938; ISO R683-6; ISO 683-18
International Organization for Standardization (ISO)
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Materials
20MnB5, ISO 683-2, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +QT
20MnB5, ISO 683-2, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +S temper
23Mn6, ISO 683-1, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +QT
25CrMo4, ISO 683-2, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +A temper
25CrMo4, ISO 683-2, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +QT
25CrMo4, ISO 683-2, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +S temper
25CrMoS4, ISO 683-2, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +A temper
25CrMoS4, ISO 683-2, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +QT
25CrMoS4, ISO 683-2, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +S temper
27MnCrB5-2, ISO 683-2, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +QT
27MnCrB5-2, ISO 683-2, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +S temper
28Mn6, ISO 683-1, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +A temper
28Mn6, ISO 683-1, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +N temper
28Mn6, ISO 683-1, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +QT
28Mn6, ISO 683-1, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +S temper
30CrNiMo8, ISO 683-2, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +A temper
30CrNiMo8, ISO 683-2, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +QT
30CrNiMo8, ISO 683-2, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +S temper
30MnB5, ISO 683-2, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +QT
30MnB5, ISO 683-2, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +S temper
33MnCrB5-2, ISO 683-2, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +QT
33MnCrB5-2, ISO 683-2, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +S temper
34Cr4, ISO 683-2, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +A temper
34Cr4, ISO 683-2, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +QT
34Cr4, ISO 683-2, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +S temper
34CrMo4, ISO 683-2, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +A temper
34CrMo4, ISO 683-2, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +QT
34CrMo4, ISO 683-2, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +S temper
34CrMoS4, ISO 683-2, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +A temper
34CrMoS4, ISO 683-2, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +QT
34CrMoS4, ISO 683-2, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +S temper
34CrNiMo6, ISO 683-2, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +A temper
34CrNiMo6, ISO 683-2, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +QT
34CrNiMo6, ISO 683-2, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +S temper
34CrS4, ISO 683-2, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +A temper
34CrS4, ISO 683-2, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +QT
34CrS4, ISO 683-2, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +S temper
36CrNiMo4, ISO 683-2, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +A temper
36CrNiMo4, ISO 683-2, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +QT
36CrNiMo4, ISO 683-2, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +S temper
36Mn6, ISO 683-1, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +A temper
36Mn6, ISO 683-1, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +QT
36Mn6, ISO 683-1, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +S temper
37Cr4, ISO 683-2, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +A temper
37Cr4, ISO 683-2, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +QT
37Cr4, ISO 683-2, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +QT+SR
37Cr4, ISO 683-2, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +S temper
37CrS4, ISO 683-2, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +A temper
37CrS4, ISO 683-2, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +QT
37CrS4, ISO 683-2, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +QT+SR
37CrS4, ISO 683-2, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +S temper
39MnB5, ISO 683-2, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +QT
39MnB5, ISO 683-2, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +S temper
39MnCrB6-2, ISO 683-2, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +QT
39MnCrB6-2, ISO 683-2, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +S temper
41Cr4, ISO 683-2, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +A temper
41Cr4, ISO 683-2, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +QT
41Cr4, ISO 683-2, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +QT+SR
41Cr4, ISO 683-2, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +S temper
41CrNiMo2, ISO 683-2, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +A temper
41CrNiMo2, ISO 683-2, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +QT
41CrNiMo2, ISO 683-2, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +S temper
41CrNiMoS2, ISO 683-2, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +A temper
41CrNiMoS2, ISO 683-2, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +QT
41CrNiMoS2, ISO 683-2, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +S temper
41CrS4, ISO 683-2, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +A temper
41CrS4, ISO 683-2, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +QT
41CrS4, ISO 683-2, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +QT+SR
41CrS4, ISO 683-2, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +S temper
42CrMo4, ISO 683-2, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +A temper
42CrMo4, ISO 683-2, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +QT
42CrMo4, ISO 683-2, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +QT+SR
42CrMo4, ISO 683-2, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +S temper
42CrMoS4, ISO 683-2, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +A temper
42CrMoS4, ISO 683-2, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +QT
42CrMoS4, ISO 683-2, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +QT+SR
42CrMoS4, ISO 683-2, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +S temper
42Mn6, ISO 683-1, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +A temper
42Mn6, ISO 683-1, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +QT
42Mn6, ISO 683-1, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +S temper
50CrMo4, ISO 683-2, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +A temper
50CrMo4, ISO 683-2, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +QT
50CrMo4, ISO 683-2, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +QT+SR
50CrMo4, ISO 683-2, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +S temper
51CrV4, ISO 683-2, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +A temper
51CrV4, ISO 683-2, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +QT
51CrV4, ISO 683-2, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +S temper
C25, ISO 683-1, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +N temper
C25, ISO 683-1, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +QT
C25E, ISO 683-1, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +N temper
C25E, ISO 683-1, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +QT
C25R, ISO 683-1, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +N temper
C25R, ISO 683-1, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +QT
C30, ISO 683-1, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +N temper
C30, ISO 683-1, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +QT
C30E, ISO 683-1, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +N temper
C30E, ISO 683-1, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +QT
C30R, ISO 683-1, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +N temper
C30R, ISO 683-1, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +QT
C35, ISO 683-1, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +N temper
C35, ISO 683-1, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +QT
C35E, ISO 683-1, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +N temper
C35E, ISO 683-1, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +QT
C35E, ISO 683-1, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +QT+SR or N+SR
C35R, ISO 683-1, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +N temper
C35R, ISO 683-1, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +QT
C35R, ISO 683-1, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +QT+SR or N+SR
C40, ISO 683-1, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +N temper
C40, ISO 683-1, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +QT
C40E, ISO 683-1, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +N temper
C40E, ISO 683-1, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +QT
C40R, ISO 683-1, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +N temper
C40R, ISO 683-1, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +QT
C45, ISO 683-1, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +N temper
C45, ISO 683-1, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +QT
C45, ISO 683-1, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +S temper
C45E, ISO 683-1, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +A temper
C45E, ISO 683-1, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +N temper
C45E, ISO 683-1, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +QT
C45E, ISO 683-1, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +QT+SR or N+SR
C45E, ISO 683-1, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +S temper
C45R, ISO 683-1, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +A temper
C45R, ISO 683-1, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +N temper
C45R, ISO 683-1, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +QT
C45R, ISO 683-1, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +QT+SR or N+SR
C45R, ISO 683-1, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +S temper
C50, ISO 683-1, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +N temper
C50, ISO 683-1, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +QT
C50, ISO 683-1, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +S temper
C50E, ISO 683-1, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +A temper
C50E, ISO 683-1, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +N temper
C50E, ISO 683-1, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +QT
C50E, ISO 683-1, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +QT+SR or N+SR
C50E, ISO 683-1, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +S temper
C50R, ISO 683-1, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +A temper
C50R, ISO 683-1, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +N temper
C50R, ISO 683-1, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +QT
C50R, ISO 683-1, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +QT+SR or N+SR
C50R, ISO 683-1, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +S temper
C55, ISO 683-1, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +N temper
C55, ISO 683-1, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +QT
C55, ISO 683-1, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +S temper
C55E, ISO 683-1, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +A temper
C55E, ISO 683-1, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +N temper
C55E, ISO 683-1, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +QT
C55E, ISO 683-1, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +QT+SR or N+SR
C55E, ISO 683-1, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +S temper
C55R, ISO 683-1, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +A temper
C55R, ISO 683-1, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +N temper
C55R, ISO 683-1, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +QT
C55R, ISO 683-1, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +QT+SR or N+SR
C55R, ISO 683-1, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +S temper
C60, ISO 683-1, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +N temper
C60, ISO 683-1, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +QT
C60, ISO 683-1, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +S temper
C60E, ISO 683-1, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +A temper
C60E, ISO 683-1, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +N temper
C60E, ISO 683-1, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +QT
C60E, ISO 683-1, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +S temper
C60R, ISO 683-1, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +A temper
C60R, ISO 683-1, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +N temper
C60R, ISO 683-1, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +QT
C60R, ISO 683-1, Bar, billet, bloom, flat product, forging, plate, rod, sheet, strip, +S temper
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