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Hot Rolled 17-4PH Stainless Steel Round Bar with Bright Surface and OD 6-300mm UNS S17400 Steel Rod

Certification	ISO, AISI, ASTM, EN, DIN, JIS
Minimum Order Quantity	50 kg
Price	US $3.4-3.89 / kg

Product Details

Shape	Round	Technique	Hot Rolled
Surface Treatment	Bright	Diameter	8 - 450mm
Length	6m /pcs	Tensile Strength	1105 - 1310 MPa
Yield Strength	1000 - 1170 MPa	Elongation	10 - 16%
Hardness	28 - 44 HRC	Density	7750 Kg/m³
Thermal Conductivity	18.4 - 22.7 W/m.K	Specific Heat	460 J/kg.K
Electrical Resistivity	800 NΩ.m	Max Temperature	572°F (300°C)
Solution Treatment	1040°C For 0.5h
Highlight	Hot Rolled 17-4PH Stainless Steel Round Bar , Bright Surface UNS S17400 Steel Rod , OD 6-300mm Precipitation Hardening Stainless Steel Bar

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Product Description

Precipitation Hardening Stainless Steel 17-4PH Round Bar

UNS S17400 Steel Rod with Solution Treatment for applications requiring high strength and moderate corrosion resistance.

Product Specifications

Products	17-4PH Stainless Steel Round Bar
Standard	ASTM GB DIN EN
Diameter	8 - 450mm
Length	6m /pcs or cutting as request
Finishing	black bar / Bright Bar
Main Grades	201 301 303Cu 304 304L 309S 310S 316L 316Ti 317L 318 321 347 410 420 430 431 440a/b/c 904L 2205 2507 Hastelloy C276 C4 C22 Inconel 600 625 Incoloy 800 825 825H etc
Service	Cutting, surface polishing, heat treatment
Brand	Walsin BAOSTEEL TISCO QINGSHAN

Material Description

17-4PH Stainless Steel (also known as Type 630) is a chromium-copper precipitation hardening stainless steel used for applications requiring high strength and moderate corrosion resistance. High strength is maintained to approximately 600°F (316°C).

General Properties

Alloy 17-4 PH is a precipitation hardening martensitic stainless steel with Cu and Nb/Cb additions. The grade combines high strength, hardness (up to 572°F / 300°C), and corrosion resistance. Mechanical properties can be optimized with heat treatment, achieving very high yield strength up to 1100-1300 MPa (160-190 ksi).

Applications & Standards

Applications	Standards
Offshore (foils, helicopter deck platforms, etc.) Food industry Pulp and paper industry Aerospace (turbine blades, etc.) Mechanical components Nuclear waste casks	ASTM A693 grade 630 (AMS 5604B) UNS S17400 EURONORM 1.4542 X5CrNiCuNb 16-4 AFNOR Z5 CNU 17-4PH DIN 1.4542

Chemical Composition

Composition of 17-4PH Stainless Steel

Grade	C	Mn	Si	P	S	Cr	Ni	Cu	Nb+Ta
630	min. max - 0.07	- 1	- 1	- 0.04	- 0.030	15 17.5	3 5	3 5	0.15 0.45

Mechanical Properties

Condition	Tensile Strength (MPa)	Yield Strength 0.2% Proof (MPa)	Elongation (% in 50mm)	Hardness Rockwell C (HR C)	Hardness Brinell (HB)
Solution Treated	1105 typ	1000 typ	15 typ	38 max	363 max
Condition 900	1310 min	1170 min	10 min	40 min	388 min
Condition 1150	930 min	724 min	16 min	28 min	277 min

Physical Properties

Mean Co-eff of Thermal Expansion (µm/m/°C)	Thermal Conductivity (W/m.K)	Specific Heat 0-100°C (J/kg.K)	Elec Resistivity (nΩ.m)
0-100°C: 10.8 0-315°C: 11.6 0-538°C: -	At 100°C: 18.4 At 500°C: 22.7	460	800

Alternative Grades Comparison

Grade	Reasons for choosing 17/4PH (630)
431	431 Has higher toughness than 17/4PH. Better availability in some sizes.
416	Free-machining martensitic stainless steel - better for repetition machining. Lower cost.
316	Higher corrosion resistance of 316 to resist more severe environments, but with much lower strength than 17/4PH.
2205	Much better corrosion resistance than 17/4PH, with a lower strength (but not as low as 316).