Technical Details

Austenitic

Grade	C (%)	Cr (%)	Ni (%)	Mo (%)	Mn (%)	Si (%)	N (%)	Other
201	≤0.15	16–18	3.5–5.5	-	5.5–7.5	≤1	≤0.25	Cu 3–5
202	≤0.15	17–19	4–6	-	7.5–10	≤1	≤0.25	Cu 3–4
303	≤0.15	17–19	8–10	-	≤2	≤1	-	S 0.15–0.35
304	≤0.08	18–20	8–10.5	-	≤2	≤1	≤0.10	-
304H	0.04–0.10	18–20	8–10.5	-	≤2	≤1	≤0.10	High carbon
304L	≤0.03	18–20	8–12	-	≤2	≤1	≤0.10	Low carbon
309	≤0.20	22–24	12–15	-	≤2	≤1	-	Heat resistant
310	≤0.25	24–26	19–22	-	≤2	≤1.5	-	High temp alloy
316	≤0.08	16–18	10–14	2–3	≤2	≤1	≤0.10	-
316H	0.04–0.10	16–18	10–14	2–3	≤2	≤1	≤0.10	High carbon
316L	≤0.03	16–18	10–14	2–3	≤2	≤1	≤0.10	Low carbon
316Ti	≤0.08	16–18	10–14	2–3	≤2	≤1	-	Ti stabilized
317	≤0.08	18–20	11–15	3–4	≤2	≤1	-	High Mo
321	≤0.08	17–19	9–12	-	≤2	≤1	-	Ti added
347	≤0.08	17–19	9–13	-	≤2	≤1	-	Nb added

Martensitic

Grade	C (%)	Cr (%)	Ni (%)	Mo (%)	Mn (%)	Si (%)	N (%)	Other
410	0.08–0.15	11.5–13.5	≤0.75	-	≤1	≤1	-	-
416	≤0.15	12–14	≤0.75	-	≤1.25	≤1	-	S added
420	0.15–0.40	12–14	≤0.75	-	≤1	≤1	-	High hardness
431	≤0.20	15–17	1.25–2.5	-	≤1	≤1	-	High strength

Ferritic

Grade	C (%)	Cr (%)	Ni (%)	Mo (%)	Mn (%)	Si (%)	N (%)	Other
430	≤0.12	16–18	≤0.75	-	≤1	≤1	-	-
430F	≤0.12	16–18	≤0.75	-	≤1.25	≤1	-	S added

Precipitation Hardening

Grade	C (%)	Cr (%)	Ni (%)	Mo (%)	Mn (%)	Si (%)	N (%)	Other
630 (17-4 PH)	≤0.07	15–17.5	3–5	-	≤1	≤1	-	Cu 3–5, Nb
17-4 PH	≤0.07	15–17.5	3–5	-	≤1	≤1	-	Cu 3–5, Nb
15-4 PH	≤0.07	14–15.5	3.5–5.5	-	≤1	≤1	-	Cu 2.5–4.5

Duplex

Grade	C (%)	Cr (%)	Ni (%)	Mo (%)	Mn (%)	Si (%)	N (%)	Other
F51 (2205)	≤0.03	21–23	4.5–6.5	2.5–3.5	≤2	≤1	0.14–0.20	-
F60 (2507)	≤0.03	24–26	6–8	3–5	≤1.2	≤0.8	0.24–0.32	-