633 S35000 - ASTM A693-2024

Grade	633
USA UNS	S35000
Corresponding Standard	ASTM A693-2024 Precipitation-Hardening Stainless and Heat-Resisting Steel Plate, Sheet, and Strip
Classification	Precipitation-Hardening Stainless Steel

633 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Mo	N
Minimum Value	0.07	-	0.5	-	-	16	4	2.5	0.07
Maximum Value	0.11	0.5	1.25	0.04	0.03	17	5	3.2	0.13

633 Mechanical Properties

Thickness t mm	Heat Treatment or Condition	Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %	Hardness HBW
0.03<t<0.038	Solid Solution Treatment	≤1380	≤620	≥8	HRC ≤30
0.03<t<0.05	Solid Solution Treatment	≤1380	≤605	≥8	HRC ≤30
0.05<t<0.13	Solid Solution Treatment	≤1380	≤595	≥8	HRC ≤30
0.13<t<0.25	Solid Solution Treatment	≤1380	≤585	≥8	HRC ≤30
t＞0.254	Solid Solution Treatment	≤1380	≤585	≥12	HRC ≤30
0.022~0.038	Precipitation Hardening, 455°C	≥1275	≥1035	≥2	HRC ≥42
0.038~0.041	Precipitation Hardening, 455°C	≥1275	≥1035	≥4	HRC ≥42
0.041~0.254	Precipitation Hardening, 455°C	≥1275	≥1035	≥6	HRC ≥42
0.254~4.762	Precipitation Hardening, 455°C	≥1275	≥1035	≥8	HRC ≥42
0.022~0.038	Precipitation Hardening, 540℃	≥1140	≥1000	≥2	HRC ≥36
0.038~0.041	Precipitation Hardening, 540℃	≥1140	≥1000	≥4	HRC ≥36
0.041~0.254	Precipitation Hardening, 540℃	≥1140	≥1000	≥6	HRC ≥36
0.254~4.762	Precipitation Hardening, 540℃	≥1140	≥1000	≥8	HRC ≥36

Note：Reduction of Area：Applicable to tests in the long transverse direction. Transverse to the direction of rolling and parallel to the product surface.
Note：Impact test is not required unless specified on the purchase order.

Approximate Comparison Table Precipitation Hardening Stainless Steel

China		United States		International Organization for Standardization		European Standard
GB	ISC	ASTM	UNS	ISO	Numerical Grade	Numerical Grade
09Cr17Ni5Mo3N GB/T 20878-2024	S51750	633 ASTM A959	S35000	X9CrNiMoN17-5-3	4457-350-00-X	(1.4457)

633 Corresponding Standards(Same grade name, different standards)

1	ASTM A959-2004
	633 S35000
2	ASTM A693-2013
	633 S35000
3	ASTM A959-2019
	633 S35000
4	ASTM A693-2024
	633 S35000

Note: The data is for reference only! If you have any questions, please fill out "I want to correct it"!