Stainless Steel 17-4PH (AMS 5643)

Technical Data Sheet

Chemical Composition Limits
Weight%	C	Si	Mn	P + S max	Cr	Ni	Cb + Ta	Cu
AMS 5643	0.07	1.0 max	1.0 max	0.04 P 0.03 S	15.0 - 17.5	3.0 - 5.0	5 X C / 0.45	3.0 - 5.0
AISI 630	0.07	1.0 max	1.0 max	0.04P 0.03 S	15.0 - 17.5	3.0 -5.0	0.15 - 0.45	3.0 - 5.0

17-4 PH is a martensitic, precipitation-hardening stainless steel that provides an outstanding combination of high strength and hardness along with excellent corrosion resistance. 17-4 PH has good fabricating characteristics and can be age hardened by a single step, low temperature treatment. 17-4 PH is a versatile material widely used in the aerospace, chemical, petrochemical, food processing, paper and general metalworking industries.

Typical Mechanical Properties

Material	Condition	Ultimate Tensile Strength (ksi)	0.2 % Yield Strength (ksi)	Elongation % in 2D	% Reduction of Area	Rockwell C Hardness
Alloy 17-4 PH Bar AMS 5643	Cond A	-	-	-	-	363 HB max
Alloy 17-4 PH Bar AMS 5643	H900	190	170	10	40	388-444
Alloy 17-4 PH Bar AMS 5643	H925	170	155	10	44	375-429
Alloy 17-4 PH Bar AMS 5643	H1025	155	145	12	45	331-401
Alloy 17-4 PH Bar AMS 5643	H1075	145	125	13	44	311-375
Alloy 17-4 PH Bar AMS 5643	H1100	140	115	14	45	302-363
Alloy 17-4 PH Bar AMS 5643	H1150	135	105	16	50	277-352

Material	Condition	Ultimate Tensile Strength (ksi)	0.2 % Yield Strength (ksi)	Elongation % in 2D (Values are for sheet <0.1874" thick)	% Reduction of Area	Rockwell C Hardness
Alloy 17-4PH Sheet/Plate AMS 5604	Cond A	-	-	-	-	38 max
Alloy 17-4PH Sheet/Plate AMS 5604	H900	190	170	5	-	40-47
Alloy 17-4PH Sheet/Plate AMS 5604	H925	170	155	5	-	38-45
Alloy 17-4PH Sheet/Plate AMS 5604	H1025	155	145	5	-	35-42
Alloy 17-4PH Sheet/Plate AMS 5604	H1075	145	125	5	-	33-39
Alloy 17-4PH Sheet/Plate AMS 5604	H1100	140	115	5	-	32-38
Alloy 17-4PH Sheet/Plate AMS 5604	H1150	135	105	8	-	28-37

Availability
17-4 PH is available in Bar, Wire, Forgings, Tube, Ring, Plate Sheet and Strip. View Stock List, Plate Stock List or contact Sales for further availability.

Specifications
AMS 5604 Sheet, Strip and Plate
AMS 5643 and 5622 Bars (Flat, Hex, Round, Square), Wire, Forgings, Tubing and Rings
ASTM A 693 Plate, Sheet and Strip
UNS : S17400

17-4 DBLE H1150
ASTM A 564 T 630 Cond H1150D
NACE MRO175/ISO 15156-3

17-4 PH Cond H 1150
ASTM A 564

17-4 PH Sol
AMS 5643
ASTM A 484

AMS 5604 Sheet, Strip Cold Rolled and Plate.
AMS 5622 (Vac Melt) Bars (Flat, Hex, Round, Square), Wire, Forgings, Tubing and Rings
AMS 5642 Bar
AMS 5643 Bars (Flat, Hex, Round, Square), Wire, Forgings, Tubing and Rings
MIL-S-25043
ASTM A564 Grade 630
ASTM A484 / ASME SA484
ASTM A564 / ASME SA564
ASTM A693 / ASME SA693 Plate, Sheet and Strip
WS 1.4542
X5CrNiCuNb16-4
AFNOR Z6CNU1704
UNS S17400

Disclaimer
Every effort is made to ensure that technical specifications are accurate. However, technical specifications included herein should be used as a guideline only. All specifications are subject to change without notice.

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