ČSN · 647 grades

ČSN steel grades — 647 designations — Page 8

Every grade designated under ČSN, 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. 1 of 50 rows differ and carry a “This grade’s own name” mark.

Also known as

647 designations

Grade	Material no.	Category	C% by weight	Also inother standards
17 020	1.4009	Others	≤ 0.09	3
17 022	1.2082	Tool steels for hot work	0.17–0.22	2
17 023	1.4007	Others	0.3–0.4	1
17 029	1.4034	Stainless steels	0.43–0.5	18
17 041	1.4013	Others	≤ 0.1	2
17 134	1.4120	Stainless steels	0.17–0.22	3
17 134	1.4922	High-temperature steels	0.17–0.23	7
17 242	1.4300	Stainless steels	≤ 0.12	15
17 243 PH	1.4305	Stainless steels	≤ 0.1	17
17 246	1.4878	Heat resistant steels	≤ 0.1	14
17 253	1.4864	Heat resistant steels	≤ 0.15	14
17 255	1.4842	Others	≤ 0.14	14
17 322	1.4873	Valve steels	0.4–0.5	11
17 348	1.4547	Stainless steels	≤ 0.02	7
17 435	1.3817	Non-magnetic steels	0.3–0.5	1
17 460	1.3965	Non-magnetic steels	≤ 0.1	9
17 536	1.3910	Others	≤ 0.05	1
17 536	1.3912	Controlled-expansion nickel-iron alloys	—	4
17 XXX	1.4767	Resistance heating alloys	≤ 0.1	1
17 XXX NN	1.4550	Stainless steels	≤ 0.08	15
17 XXX NN	1.4057	Stainless steels	0.12–0.22	17
17 XXX NN	1.4420	Others	≤ 0.07	1
17020	1.4001	Stainless steels	≤ 0.08	10
17020	1.4001	Others	≤ 0.08	8
17020	1.4000	Stainless steels	≤ 0.08	16
17021	1.4006	Stainless steels	0.08–0.15	26
17021	1.4024	Stainless steels	0.12–0.17	13
17022	1.4021	Stainless steels	0.16–0.25	18
17022	1.4006	Stainless steels	0.08–0.15	26
17023	1.4028	Stainless steels	0.26–0.35	18
17024	1.2083	Tool steels for cold work	0.36–0.42	16
17024	1.4031	Stainless steels	0.36–0.42	18
17029	1.3541	Others	0.43–0.5	9
17029	1.2083	Tool steels for cold work	0.36–0.42	16
17031	1.4015	Others	≤ 0.1	6
17040	1.4016	Stainless steels	≤ 0.08	18
17041	1.4017	Others	≤ 0.08	3
17041	1.4016	Stainless steels	≤ 0.08	18
17041	1.4510	Stainless steels	≤ 0.05	14
17042	1.4112	Stainless steels	0.85–0.95	13
17042	1.4125	Stainless steels	0.95–1.2	11
17102	1.7390	Others	≤ 0.18	3
17102	1.7362	Hydrogen resistant steels	0.1–0.15	13
17113	1.4713	Heat resistant steels	≤ 0.12	7
17115	1.4718	Valve steels	0.4–0.5	16
17115	1.4718	Others	0.4–0.5	16
17116	1.7386	Hydrogen resistant steels	0.08–0.15	6
17119 This grade’s own name	—	—	—	—
17125	1.4724	Heat resistant steels	≤ 0.12	15
17125	1.4002	Stainless steels	≤ 0.08	13

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.