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Precision Ground 17-4PH Stainless Steel Round Bar with Diameter 3-60mm in Stock

Certification	ISO, AISI, ASTM, EN, DIN, JIS
Minimum Order Quantity	50 kg
Price	US $3.12-3.62 / kg

Product Details

Diameter Range	3 - 60mm	Length	6m /pcs
Surface Finish	Bright Bar	Material 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 W/m.K
Specific Heat	460 J/kg.K	Electrical Resistivity	800 NΩ.m
Thermal Expansion	10.8 µm/m/°C	Max Service Temp	300°C
Chromium Content	15 - 17.5%
Highlight	Precision Ground Stainless Steel Round Bar , Grade 17-4PH Stainless Steel Bar , Diameter 3-60mm Round Bar

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Product Description

Precision Grinding Stainless Steel Bar Grade 17-4PH / 630 / 1.4541

Precision ground stainless steel round bars in Grade 17-4PH (also known as 630 or 1.4541) with diameters ranging from 3mm to 60mm. Available in stock for immediate delivery.

Product Specifications

Product	17-4PH Stainless Steel Round Bar
Standard	ASTM, GB, DIN, EN
Diameter	8 - 450mm
Length	6m per piece or custom cutting available
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
Services	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 grade maintains high strength up to approximately 600°F (316°C).

General Properties

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

Applications & Standards

Applications:

Offshore industries (foils, helicopter deck platforms)
Food processing industry
Pulp and paper industry
Aerospace (turbine blades)
Mechanical components
Nuclear waste casks

Standards:

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	Min (%)	Max (%)
C	-	0.07
Mn	-	1.0
Si	-	1.0
P	-	0.04
S	-	0.030
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 (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
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