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17-4PH SUS630 Stainless Steel Round Bar Hot Rolled with Bright Surface OD 6-300mm

Certification	ISO, AISI, ASTM, EN, DIN, JIS
Minimum Order Quantity	50 kg
Price	US $1.65-2.85 / kg

Product Details

Model Number	17-4pH/SUS630	Shape	Round
Technique	Hot Rolled	Surface Treatment	Bright
Diameter Range	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
Max Temperature	572°F (300°C)
Highlight	Hot Rolled Stainless Steel Round Bar , Bright Surface 17-4PH Round Bar , OD 6-300mm SUS630 Round Bar

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Product Description

17-4PH/SUS630 Stainless Steel Bright Round Bar

17-4PH Stainless Steel Overview

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).

Key Characteristics

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

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

Standards Compliance

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 provides superior corrosion resistance compared to standard hardenable stainless steels and is comparable to Alloy 304 in most media. For optimal performance in chloride media, aging temperatures above 1022°F (550°C) are recommended, while 1094°F (590°C) is optimal for H2S media applications.

Technical Specifications

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 (MPa)	Elongation (%)	Hardness (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 Expansion (0-100°C)	10.8 µm/m/°C
Thermal Conductivity (100°C)	18.4 W/m·K
Specific Heat	460 J/kg·K
Electrical Resistivity	800 nΩ·m

Heat Treatment

Grade 630 stainless steels undergo solution treatment at 1040°C for 0.5 hours followed by air cooling. Age hardening at various temperatures achieves the required mechanical properties with minimal distortion.

Condition	Hardening Temp (°C)	Time (h)	Typical Hardness (HRC)	Tensile Strength (MPa)
A	Ann	-	36	1100
H900	482	1	44	-
H925	496	4	42	1170-1320
H1150	621	4	33	930-1080

Fabrication & Processing

Welding: Grade 630 can be welded using all conventional methods without pre-heating requirements.

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

Typical Applications

Engine components
High-strength boat propeller shafts
Plastic molding dies
Valves and gears
Aerospace turbine blades
Nuclear industry components

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17-4PH SUS630 Stainless Steel Round Bar Hot Rolled with Bright Surface OD 6-300mm

Hot Rolled Stainless Steel Round Bar

Bright Surface 17-4PH Round Bar

OD 6-300mm SUS630 Round Bar