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    Material quality very good. we have cooperate more than 10 Years. They trade lots kinds of steel material. All material quality good. They duty for all material quality. We are planing continue cooperate with them in the future
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High Hardness 17-4PH Stainless Steel Round Bar with Bright Surface and OD 6-300mm

  • High Hardness 17-4PH Stainless Steel Round Bar with Bright Surface and OD 6-300mm
  • High Hardness 17-4PH Stainless Steel Round Bar with Bright Surface and OD 6-300mm
  • High Hardness 17-4PH Stainless Steel Round Bar with Bright Surface and OD 6-300mm
  • High Hardness 17-4PH Stainless Steel Round Bar with Bright Surface and OD 6-300mm
  • High Hardness 17-4PH Stainless Steel Round Bar with Bright Surface and OD 6-300mm
  • High Hardness 17-4PH Stainless Steel Round Bar with Bright Surface and OD 6-300mm
Certification ISO, AISI, ASTM, EN, DIN, JIS
Minimum Order Quantity 50 kg
Price US $3.44-3.93 / 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 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 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
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High Hardness Stainless Steel Round Bar

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Bright Surface 17-4PH Round Bar

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OD 6-300mm 630 Stainless Steel Bar
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Product Description
17-4PH Stainless Steel Round Bar
High-quality 17-4PH precipitation hardening stainless steel round bars offering exceptional hardness and strength for demanding industrial applications.
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, etc.
Services Cutting, surface polishing, heat treatment
Brand Walsin, BAOSTEEL, TISCO, QINGSHAN
Material Description
17-4PH (Type 630) is a chromium-copper precipitation hardening stainless steel designed for applications requiring high strength and moderate corrosion resistance. This material 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. The grade combines high strength, hardness (up to 572°F / 300°C), and 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 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
Grade C Mn Si P S Cr Ni Cu Nb+Ta
630 0.07 max 1.0 max 1.0 max 0.04 max 0.030 max 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) Electrical Resistivity (nΩ.m)
10.8 (0-100°C)
11.6 (0-315°C)		 18.4 (at 100°C)
22.7 (at 500°C)		 460 800
Product Applications
  • Engine components
  • High strength and boat propeller shafts
  • Plastic moulding dies
  • Valves and gears
Product Images
High Hardness 17-4PH Stainless Steel Round Bar with Bright Surface and OD 6-300mm 0 High Hardness 17-4PH Stainless Steel Round Bar with Bright Surface and OD 6-300mm 1 High Hardness 17-4PH Stainless Steel Round Bar with Bright Surface and OD 6-300mm 2 High Hardness 17-4PH Stainless Steel Round Bar with Bright Surface and OD 6-300mm 3
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17-4PH Alloy Stainless Steel Round Bar

Hot Rolled Stainless Steel Round Bar

Bright Surface Stainless Steel Round Bar