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Diameter 3-50mm Grade 17-4PH Hot Rolled Stainless Steel Bar and Rod

Certification	ISO, AISI, ASTM, EN, DIN, JIS
Minimum Order Quantity	50 kg
Price	US $3.13-3.61 / kg

Product Details

Diameter Range	3 - 50mm	Shape	Round
Technique	Hot Rolled	Surface Treatment	Bright
Standard	ASTM GB DIN EN	Length	6m /pcs Or Cutting As Request
Main Grade	17-4PH	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	Electrical Resistivity	800 NΩ.m
Coefficient Of Thermal Expansion	10.8 - 11.6 µm/m/°C
Highlight	Diameter 3-50mm Stainless Steel Bar , Grade 17-4PH Stainless Steel Rod , Hot Rolled Stainless Steel Bar

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Product Description

Diameter 3-50mm Stainless Steel Bar Grade 17-4PH / 630

High-strength precipitation hardening stainless steel rods offering excellent mechanical properties and moderate corrosion resistance for demanding industrial applications.

Product Specifications

Product	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
Service	Cutting, surface polishing, heat treatment
Brand	Walsin BAOSTEEL TISCO QINGSHAN

Material Description

17-4PH Stainless Steel (Type 630) is a chromium-copper precipitation hardening stainless steel designed for applications requiring high strength and moderate corrosion resistance. This alloy maintains high strength up 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

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

Property	Value
Density (kg/m³)	7750
Thermal Expansion 0-100°C (µm/m/°C)	10.8
Thermal Expansion 0-315°C (µm/m/°C)	11.6
Thermal Conductivity at 100°C (W/m.K)	18.4
Thermal Conductivity at 500°C (W/m.K)	22.7
Specific Heat 0-100°C (J/kg.K)	460
Electrical Resistivity (nΩ.m)	800