JIS · 2,322 grades

JIS steel grades — 2322 designations — Page 13

Every grade designated under JIS, with the material number it maps to, what kind of steel it is, its carbon window and how many other standards carry it. Open a grade for its full composition, properties and its designations in other standards. Unless marked, every name here is an indicative cross-reference, not an asserted identity — the grades are close, not interchangeable. 16 of 50 rows differ and carry a “This grade’s own name” mark.

Also known as

2322 designations

Grade	Material no.	Category	C% by weight	Also inother standards
SCr415	1.7015	Case hardening steels	0.12–0.18	15
SCr415	1.7016	Case hardening steels	0.14–0.2	11
SCr415H	1.7016	Case hardening steels	0.14–0.2	11
SCr415H	1.7015	Case hardening steels	0.12–0.18	15
SCr415HRCH This grade’s own name	—	Cold extrusion steels	0.12–0.18	—
SCr415RCH This grade’s own name	—	Cold extrusion steels	0.13–0.18	—
SCr420	1.3523	Case hardening steels	0.17–0.22	8
SCr420	1.7027	Case hardening steels	0.17–0.23	12
SCr420	1.7147	Case hardening steels	0.17–0.22	15
SCr420H	1.3523	Case hardening steels	0.17–0.22	8
SCr420H	1.7147	Case hardening steels	0.17–0.22	15
SCr420H	1.7027	Case hardening steels	0.17–0.23	12
SCr420HRCH This grade’s own name	—	Cold extrusion steels	0.17–0.23	—
SCr420M This grade’s own name	—	—	0.18–0.23	1
SCr420RCH This grade’s own name	—	Cold extrusion steels	0.18–0.23	—
SCr420TK This grade’s own name	—	—	0.18–0.23	—
SCr430	1.7033	Quenched and tempered steels	0.3–0.37	18
SCr430	1.7030	Quenched and tempered steels	0.24–0.31	12
SCR430H This grade’s own name	1.7037	Quenched and tempered steels	0.3–0.37	8
SCr430H	1.7033	Quenched and tempered steels	0.3–0.37	18
SCr430H	1.7030	Quenched and tempered steels	0.24–0.31	12
SCr430HRCH This grade’s own name	—	Cold extrusion steels	0.27–0.34	—
SCr430RCH This grade’s own name	—	Cold extrusion steels	0.28–0.33	—
SCr435	1.7034	Quenched and tempered steels	0.34–0.41	23
SCr435	1.7033	Quenched and tempered steels	0.3–0.37	18
SCr435	—	—	0.33–0.38	4
SCr435H	1.7034	Quenched and tempered steels	0.34–0.41	23
SCr435H	1.7033	Quenched and tempered steels	0.3–0.37	18
SCr435HRCH This grade’s own name	—	Cold extrusion steels	0.32–0.39	—
SCr435M This grade’s own name	—	—	0.33–0.38	1
SCr435RCH This grade’s own name	—	Cold extrusion steels	0.33–0.38	—
SCr440	1.7045	Steels for surface hardening	0.38–0.44	9
SCr440	1.7035	Quenched and tempered steels	0.38–0.45	18
SCr440	1.7034	Quenched and tempered steels	0.34–0.41	23
SCr440H	1.7035	Quenched and tempered steels	0.38–0.45	18
SCr440H	1.7034	Quenched and tempered steels	0.34–0.41	23
SCr440HRCH This grade’s own name	—	Cold extrusion steels	0.37–0.44	—
SCr440M This grade’s own name	—	—	0.38–0.43	1
SCr440RCH This grade’s own name	—	Cold extrusion steels	0.38–0.43	—
SCr445 This grade’s own name	—	—	0.43–0.48	—
SCr445	1.7035	Quenched and tempered steels	0.38–0.45	18
SCr445	—	—	0.43–0.48	2
SCS 1	1.4011	Others	≤ 0.15	7
SCS 12	1.4825	Heat-resistant cast steels	0.15–0.35	4
SCS 13A	1.4308	Cast stainless steels	≤ 0.07	10
SCS 13X	1.4308	Cast stainless steels	≤ 0.07	10
SCS 14A	1.4408	Cast stainless steels	≤ 0.07	7
SCS 14X	1.4408	Cast stainless steels	≤ 0.07	7
SCS 16AX	1.4409	Cast stainless steels	≤ 0.03	4
SCS 16AXN	1.4409	Cast stainless steels	≤ 0.03	4

This grade’s own name — recorded in our sources as this grade’s own designation under that standard.
Indicative — taken from a published cross-reference table; a close match, not a guarantee of interchangeability. Verify against the mill certificate before ordering.
Withdrawn — designation no longer current — a separate column from the two above, so a name can be same grade and withdrawn at once.