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ASTM AISI 630 17-4PH Stainless Steel Round Rod Precipitation Hardening Hot Rolled Bright Surface

Certification	ISO, AISI, ASTM, EN, DIN, JIS
Minimum Order Quantity	50 kg
Price	US $3.12-3.61 / 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	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
Highlight	Precipitation Hardening Stainless Steel Round Rod , Hot Rolled 17-4PH Stainless Steel Bar , Bright Surface 630 Stainless Steel Rod

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Product Description

ASTM AISI 630 17-4PH Stainless Steel Round Rod

17-4PH Precipitation Hardening Stainless Steel 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).

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

Material 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 with very high yield strength up to 1100-1300 MPa (160-190 ksi).

Chemical Composition

Element	Content (%)
C	0.07 max
Mn	1.0 max
Si	1.0 max
P	0.04 max
S	0.030 max
Cr	15.0 - 17.5
Ni	3.0 - 5.0
Cu	3.0 - 5.0
Nb+Ta	0.15 - 0.45

Mechanical Properties

Condition	Tensile Strength (MPa)	Yield Strength 0.2% Proof (MPa)	Elongation (% in 50mm)	Hardness Rockwell C
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
Thermal Conductivity at 100°C	18.4 W/m·K
Thermal Conductivity at 500°C	22.7 W/m·K
Specific Heat 0-100°C	460 J/kg·K
Electrical Resistivity	800 nΩ·m

Applications

Offshore applications (foils, helicopter deck platforms)
Food industry equipment
Pulp and paper industry
Aerospace components (turbine blades)
Mechanical components
Nuclear waste casks
Engine components
High strength boat propeller shafts
Plastic moulding dies
Valves and gears

Heat Treatment

Solution treatment (Condition A): Heated at 1040°C for 0.5 h, then air-cooled to 30°C. Small sections can be oil quenched.

Hardening: Age-hardened at low temperatures to achieve required mechanical properties. During the process, superficial discoloration occurs followed by shrinkage.

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