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Grade library

Grades grouped by family, with standards cross-references, how to confirm composition, typical applications and related products.

  1. Carbon steel

    Carbon steels for machine structural use (S10C to S55C) and for cold heading (SWCH series): properties by carbon content, heat treatment and typical applications.

    S10C · S20C · S35C · S45C · S48C · S50C · S55C · SWCH6A · SWCH10A · SWCH18A · SWCH22A · SWCH25K · SWCH45K

  2. Cr, Cr-Mo, boron and non-heat-treated steels

    Roles of the alloying elements, heat treatment and typical uses of chromium, chromium-molybdenum, boron and H steels, with an outline of non-heat-treated steels.

    SCr415 · SCr420 · SCM415 · SCM420 · SCM435 · SCM440 · SCr415H · SCr420H · SCM415H · SCM420H · SCM435H · SCM440H · 10B38 · 51B20

  3. Bearing and spring steels

    Alloying roles, heat treatment and typical uses of the high-carbon chromium bearing steel SUJ2 and the Mn-Cr and Si-Cr spring steels SUP9 and SUP12.

    SUJ2 · SUP9 · SUP12

  4. Free-cutting steel

    How free-cutting steel gains machinability from sulfur, lead and similar additions, how to compare leaded and lead-free grades, and typical heat treatment, delivery conditions and applications, in general engineering terms.

    SUM22 · SUM23 · SUM24L · SUM43 · 1215 · 12L14 · 1144 · 11SMn30 · 11SMnPb30

  5. Stainless steel

    Austenitic, ferritic, martensitic and precipitation-hardening stainless steels and engine-valve heat-resisting steels (SUH): structure, alloying elements, heat treatment and typical applications.

    SUS303 · SUS304 · SUS304L · SUS316 · SUS316L · SUS430F · SUS416 · SUS420F · SUS420J1 · SUS420J2 · SUS431 · SUS440C · SUS630 · SUH3 · SUH11 · SUH35

  6. Tool and die steel

    Covers the cold-work alloy tool steel SKD11 and the high-speed tool steels SKH51 and SKH55, with the role of alloying elements, heat treatment and typical applications.

    SKD11 · SKH51 · SKH55 · M2 · M35

  7. Titanium

    How commercially pure titanium is graded, and the alloying elements, heat treatment, delivery condition and typical uses of ASTM Grade 5 (Ti-6Al-4V).

    Grade 5

Grade index

Notes

  • The grade lists explain standards; they do not indicate stock or availability, which we confirm on inquiry.
  • Cross-references are for reference only; the final grade is confirmed against your drawing and standard.

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