JIS · 2,322 grades

JIS steel grades — 2322 designations — Page 21

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. 12 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
SL3N440 This grade’s own name	—	Low-temperature structural steels	≤ 0.15	1
SL5N590 This grade’s own name	—	Low-temperature structural steels	≤ 0.13	1
SL7N590 This grade’s own name	—	Low-temperature structural steels	≤ 0.12	—
SL9N520 This grade’s own name	—	Low-temperature structural steels	≤ 0.12	1
SL9N590 This grade’s own name	—	Low-temperature structural steels	≤ 0.12	1
SLA235A This grade’s own name	—	Low-temperature structural steels	≤ 0.15	—
SLA235B This grade’s own name	—	Low-temperature structural steels	≤ 0.15	—
SLA325A This grade’s own name	—	Low-temperature structural steels	≤ 0.16	—
SLA325A	1.0445	Higher strength steels	—	12
SLA325B This grade’s own name	—	Low-temperature structural steels	≤ 0.16	—
SLA365 This grade’s own name	—	Low-temperature structural steels	≤ 0.18	—
SLA410 This grade’s own name	—	Low-temperature structural steels	≤ 0.18	—
SM 570 SM 58	1.0060	Unalloyed structural steels	—	21
SM400A	1.0144	Unalloyed structural steels	≤ 0.18	22
SM400A	1.0044	Unalloyed structural steels	≤ 0.21	26
SM400B	1.0490	Fine-grain structural steels	≤ 0.18	6
SM400B	1.0114	Unalloyed structural steels	≤ 0.17	21
SM400B	1.0144	Unalloyed structural steels	≤ 0.18	22
SM400B	1.0486	Fine-grain structural steels	≤ 0.16	6
SM400B	1.0461	Fine-grain structural steels	≤ 0.18	5
SM400B	1.0044	Unalloyed structural steels	≤ 0.21	26
SM400C	1.0144	Unalloyed structural steels	≤ 0.18	22
SM400C	1.0461	Fine-grain structural steels	≤ 0.18	5
SM400C	1.0044	Unalloyed structural steels	≤ 0.21	26
SM41A	1.0044	Unalloyed structural steels	≤ 0.21	26
SM41B	—	—	—	1
SM41B	1.0486	Fine-grain structural steels	≤ 0.16	6
SM41B	1.0461	Fine-grain structural steels	≤ 0.18	5
SM41C	1.0461	Fine-grain structural steels	≤ 0.18	5
SM490	1.0570	Unalloyed structural steels	≤ 0.2	22
SM490	1.0570	Unalloyed structural steels	≤ 0.2	20
SM490A	1.8902	Fine-grain structural steels	≤ 0.2	19
SM490A	1.0045	Unalloyed structural steels	≤ 0.24	17
SM490A	1.0570	Unalloyed structural steels	≤ 0.2	22
SM490A	1.0570	Unalloyed structural steels	≤ 0.2	20
SM490A	1.0562	Fine-grain structural steels	≤ 0.18	18
SM490B	1.0562	Fine-grain structural steels	≤ 0.18	18
SM490B	1.0570	Unalloyed structural steels	≤ 0.2	22
SM490B	1.0570	Unalloyed structural steels	≤ 0.2	20
SM490B	1.8902	Fine-grain structural steels	≤ 0.2	19
SM490C	1.8902	Fine-grain structural steels	≤ 0.2	19
SM490C	1.0570	Unalloyed structural steels	≤ 0.2	22
SM490C	1.0570	Unalloyed structural steels	≤ 0.2	20
SM490C	1.0562	Fine-grain structural steels	≤ 0.18	18
SM490YA This grade’s own name	—	Unalloyed structural steels	≤ 0.2	1
SM490YA	1.0570	Unalloyed structural steels	≤ 0.2	22
SM490YA	1.0570	Unalloyed structural steels	≤ 0.2	20
SM490YA	1.8902	Fine-grain structural steels	≤ 0.2	19
SM490YA	1.0562	Fine-grain structural steels	≤ 0.18	18
SM490YB	1.0595	Others	≤ 0.2	7

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.