UNS · 2,038 grades

UNS steel grades — 2038 designations — Page 15

Every grade designated under UNS, 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 asserted identity — the same grade under this standard’s own designation. 7 of 50 rows differ and carry an “Indicative” mark.

Also known as

2038 designations

Grade	Material no.	Category	C% by weight	Also inother standards
K02100	1.9417	Aging resistant steels	≤ 0.21	1
K02101	1.0475	Others	≤ 0.21	1
K02104	1.0437	Others	≤ 0.2	8
K02104	1.0463	Fine-grain structural steels	≤ 0.16	2
K02200	1.0112	Unalloyed structural steels	≤ 0.16	5
K02200	1.0345	Heat-resistant structural steels	≤ 0.16	18
K02201	1.0345	Heat-resistant structural steels	≤ 0.16	18
K02202	1.0345	Heat-resistant structural steels	≤ 0.16	18
K02202	1.0346	Unalloyed structural steels	≤ 0.07	2
K02202	1.0461	Fine-grain structural steels	≤ 0.18	5
K02202	1.0462	Fine-grain structural steels	≤ 0.18	1
K02202	1.0463	Fine-grain structural steels	≤ 0.16	2
K02202	1.1101	Others	≤ 0.17	1
K02203	1.0345	Heat-resistant structural steels	≤ 0.16	18
K02203	1.0481	Heat-resistant structural steels	0.08–0.2	17
K02203	1.0486	Fine-grain structural steels	≤ 0.16	6
K02203	1.0488	Fine-grain structural steels	≤ 0.16	4
K02203	1.0505	Fine-grain structural steels	≤ 0.18	1
K02203	1.0506	Fine-grain structural steels	≤ 0.18	1
K02203	1.0508	Fine-grain structural steels	≤ 0.16	1
K02204 Indicative	1.8907	Fine-grain structural steels	≤ 0.21	1
K02204 Indicative	1.8917	Fine-grain structural steels	≤ 0.21	1
K02204 Indicative	1.8937	Fine-grain structural steels	≤ 0.21	1
K02204 Indicative	1.8953	Others	≤ 0.22	1
K02300	1.0441	Others	≤ 0.23	1
K02301	1.0044	Unalloyed structural steels	≤ 0.21	26
K02302 Indicative	1.0566	Fine-grain structural steels	≤ 0.18	11
K02302 Indicative	1.1104	Fine-grain structural steels	≤ 0.16	1
K02302 Indicative	1.8913	Fine-grain structural steels	≤ 0.2	1
K02305	1.0539	Fine-grain structural steels	≤ 0.2	1
K02401	1.0037	Unalloyed structural steels	≤ 0.17	7
K02401	1.0037	Unalloyed structural steels	≤ 0.17	4
K02401	1.0038	Unalloyed structural steels	≤ 0.17	26
K02401	1.0039	Unalloyed structural steels	≤ 0.17	3
K02401	1.0114	Unalloyed structural steels	≤ 0.17	21
K02401	1.9423	Others	≤ 0.24	1
K02402	1.0425	Heat-resistant structural steels	≤ 0.2	20
K02402	1.0426	Aging resistant steels	0.08–0.2	17
K02402	1.0437	Others	≤ 0.2	8
K02402	1.0486	Fine-grain structural steels	≤ 0.16	6
K02402	1.0487	Fine-grain structural steels	≤ 0.16	3
K02402	1.0488	Fine-grain structural steels	≤ 0.16	4
K02403	1.0436	Fine-grain structural steels	0.15–0.2	14
K02403	1.0487	Fine-grain structural steels	≤ 0.16	3
K02403	1.0488	Fine-grain structural steels	≤ 0.16	4
K02403	1.0505	Fine-grain structural steels	≤ 0.18	1
K02403	1.0506	Fine-grain structural steels	≤ 0.18	1
K02403	1.0508	Fine-grain structural steels	≤ 0.16	1
K02403	1.1104	Fine-grain structural steels	≤ 0.16	1
K02403	1.9439	Others	≤ 0.24	1

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.