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Hot Rolled 17-4PH Stainless Steel Bar with EN 10204-3.1 Certificate and Bright Surface

Certification	ISO, AISI, ASTM, EN, DIN, JIS
Minimum Order Quantity	50 kg
Price	US $3.32-3.81 / kg

Product Details

Model NO.	17-4PH/630	Shape	Round
Technique	Hot Rolled	Surface Treatment	Bright
Specification	OD 6-300mm	Diameter	8 - 450mm
Length	6m /pcs Or Cutting As Request	Main Grade	201 301 303Cu 304 304L 309S 310S 316L 316Ti 317L 318 321 347 410 420 430 431 440a/b/c 904L 2205 2507
Tensile Strength	1105-1310 MPa	Yield Strength	724-1300 MPa
Elongation	10-16%	Hardness	28-44 HRC
Density	7750 Kg/m³	Thermal Conductivity	18.4-22.7 W/m.K
Electrical Resistivity	800 NΩ.m
Highlight	EN 10204-3.1 Certificate Stainless Steel Bar , Hot Rolled 17-4PH Round Bar , Bright Surface 630 Stainless Steel Bar

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Product Description

Grade 1.4542 / 17-4PH Stainless Steel Bar with EN 10204-3.1 Certificate

Product Specifications

Product	17-4PH Stainless Steel Round Bar
Standard	ASTM GB DIN EN
Diameter	8 - 450mm
Length	6m /pcs or cutting as requested
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) Food industry Pulp and paper industry Aerospace (turbine blades) 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

Element	Content (%)
C	≤ 0.07
Mn	≤ 1.00
Si	≤ 1.00
P	≤ 0.04
S	≤ 0.030
Cr	15.00 - 17.50
Ni	3.00 - 5.00
Cu	3.00 - 5.00
Nb+Ta	0.15 - 0.45

Mechanical Properties

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

Physical Properties

Property	Value
Density	7750 kg/m³
Mean Coefficient of Thermal Expansion (0-100°C)	10.8 µm/m/°C
Thermal Conductivity (at 100°C)	18.4 W/m·K
Specific Heat (0-100°C)	460 J/kg·K
Electrical Resistivity	800 nΩ·m

Corrosion Resistance

Alloy 17-4 PH withstands corrosive attacks better than standard hardenable stainless steels and is comparable to Alloy 304 in most media. For stress corrosion cracking resistance, higher aging temperatures (above 1022°F/550°C) are recommended.

Heat Treatment

Solution treatment involves heating to 1040°C for 0.5 hours followed by air cooling. Age hardening at various temperatures achieves the required mechanical properties with typical shrinkage of 0.10% for condition H1150 and 0.05% for condition H900.

Machining & Welding

Grade 630 stainless steels can be machined in their solution-treated condition with machining rates similar to grade 304 steels. They can be welded using all conventional methods without requiring pre-heating.

Applications