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  • JIANGSU MITTEL STEEL INDUSTRIAL LIMITED
    Raian Ionescu
    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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Hot Rolled Bright Surface SUS630 Round Bar with OD 6-300mm for High Strength Applications

  • Hot Rolled Bright Surface SUS630 Round Bar with OD 6-300mm for High Strength Applications
  • Hot Rolled Bright Surface SUS630 Round Bar with OD 6-300mm for High Strength Applications
  • Hot Rolled Bright Surface SUS630 Round Bar with OD 6-300mm for High Strength Applications
  • Hot Rolled Bright Surface SUS630 Round Bar with OD 6-300mm for High Strength Applications
  • Hot Rolled Bright Surface SUS630 Round Bar with OD 6-300mm for High Strength Applications
  • Hot Rolled Bright Surface SUS630 Round Bar with OD 6-300mm for High Strength Applications
  • Hot Rolled Bright Surface SUS630 Round Bar with OD 6-300mm for High Strength Applications
Certification ISO, AISI, ASTM, EN, DIN, JIS
Minimum Order Quantity 50 kg
Price US $1.65-2.85 / kg
Product Details
Model NO. 630 Shape Round
Technique Hot Rolled Surface Treatment Bright
Specification OD 6-300mm Production Capacity 50000kgs
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
Coeff Thermal Expansion 10.8-11.6 µm/m/°C
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Hot Rolled SUS630 Round Bar

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Bright Surface Stainless Steel Round Bar

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OD 6-300mm 17-4PH Round Bar
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Product Description
17-4PH Stainless Steel Round Bar

17-4 Precipitation Hardening (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 copper and niobium additions. This grade 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).

This grade should not be used at temperatures above 572°F (300°C) or at very low temperatures. It provides adequate resistance to atmospheric corrosion and diluted acids or salts, with corrosion resistance equivalent to Alloy 304 or 430.

Applications & Standards
  • Offshore applications (foils, helicopter deck platforms)
  • Food processing industry
  • Pulp and paper industry
  • Aerospace components (turbine blades)
  • Mechanical components
  • Nuclear waste casks
Standard Designation
ASTM A693 grade 630 (AMS 5604B) UNS S17400
EURONORM 1.4542 X5CrNiCuNb 16-4
AFNOR Z5 CNU 17-4PH
DIN 1.4542
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 risks, higher aging temperatures above 1022°F (550°C), preferably 1094°F (590°C), should be selected.

The alloy may experience crevice or pitting attack in stagnant seawater but provides excellent corrosion resistance in chemical, petroleum, paper, dairy, and food processing industries (equivalent to 304L grade).

Technical Specifications
Chemical Composition
Element Content (%)
Carbon (C) 0.07 max
Manganese (Mn) 1.00 max
Silicon (Si) 1.00 max
Phosphorus (P) 0.04 max
Sulfur (S) 0.030 max
Chromium (Cr) 15.0 - 17.5
Nickel (Ni) 3.0 - 5.0
Copper (Cu) 3.0 - 5.0
Niobium + Tantalum (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 Expansion (0-100°C) 10.8 µm/m/°C
Thermal Conductivity (100°C) 18.4 W/m·K
Specific Heat (0-100°C) 460 J/kg·K
Electrical Resistivity 800 nΩ·m
Heat Treatment

Solution Treatment (Condition A): Heat to 1040°C for 0.5 hours, then air-cool to 30°C. Small sections may be oil quenched.

Age Hardening: Performed at low temperatures to achieve required mechanical properties. Typical conditions include:

Condition Temperature (°C) Time (h) Typical Hardness (HRC) Tensile Strength (MPa)
H900 482 1 44 -
H925 496 4 42 1170-1320
H1150 621 4 33 930-1080
Fabrication

Welding: Grade 630 can be welded using all conventional methods without pre-heating. Proper design is essential to prevent weldment stresses.

Machining: Best performed in solution-treated condition, with machining rates similar to grade 304 stainless steel.

Applications
  • Engine components
  • High-strength boat propeller shafts
  • Plastic molding dies
  • Valves and gears
  • Aerospace components
  • Nuclear industry components
Hot Rolled Bright Surface SUS630 Round Bar with OD 6-300mm for High Strength Applications 0
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17-4PH Alloy Stainless Steel Round Bar

Hot Rolled Stainless Steel Round Bar

Bright Surface Stainless Steel Round Bar