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Precipitation Hardening High Strength Corrosion Resistant 17-4PH SUS630

China Precipitation Hardening High Strength Corrosion Resistant 17-4PH SUS630

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Precipitation Hardening High Strength Corrosion Resistant 17-4PH SUS630

MOQ： 50
Price： 2.58
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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)
Thermal Expansion	10.8-11.6 µm/m/°C
Certification	ISO, AISI, ASTM, EN, DIN, JIS

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Product Details
Company Details

Product Specification


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)
Thermal Expansion	10.8-11.6 µm/m/°C	Certification	ISO, AISI, ASTM, EN, DIN, JIS
High Light	Precipitation Hardening Stainless Steel Round Bar ，High Strength 17-4PH Stainless Steel Bar ，Corrosion Resistant SUS630 Stainless Steel Bar

SUS630 Aqvaloy 17 Propeller Shaft Condition Raw Coupling and Propeller Side Machining Stainless Steel 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).

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 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	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

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 chloride media, 550°C is the optimum tempering temperature, while 590°C is preferred for H2S media. The alloy may experience crevice or pitting attack in stagnant seawater but offers excellent resistance in chemical, petroleum, paper, dairy, and food processing applications.

Technical Specifications

Chemical Composition

Table 1: Composition ranges for grade 630 stainless steels

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

Table 2: Mechanical properties of grade 630 stainless steels

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

Table 3: Typical physical properties of grade 630 stainless steels

Property	Value
Density (kg/m³)	7750
Thermal Conductivity at 100°C (W/m·K)	18.4
Thermal Conductivity at 500°C (W/m·K)	22.7
Specific Heat 0-100°C (J/kg·K)	460
Electrical Resistivity (nΩ·m)	800

Heat Treatment

Table 6: Typical mechanical properties after solution treating

Condition	Hardening Temp (°C)	Time (h)	Typical Hardness Rockwell C	Tensile Strength (MPa)
A	Ann	-	36	1100
H900	482	1	44	-
H925	496	4	42	1170-1320
H1025	552	4	38	1070-1220
H1075	580	4	36	1000-1150
H1100	593	4	35	970-1120
H1150	621	4	33	930-1080

Applications

Engine components
High strength boat propeller shafts
Plastic moulding dies
Valves and gears

Company Details

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Business Type:

Manufacturer 
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Year Established:

2012 
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Total Annual:

500,000,000-800,000,000
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Employee Number:

100~200 
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Company Overview ： The company has an indoor warehouse of 5000 square meters and an open warehouse of 4000 square meters, which can fully meet the temporary turnover and phased storage of customers' steel pipe reservation. The subordinate processing plant has 6 sets of medium frequency h... Company Overview ： The company has an indoor warehouse of 5000 square meters and an open warehouse of 4000 square meters, which can fully meet the temporary turnover and phased storage of customers' steel pipe reservation. The subordinate processing plant has 6 sets of medium frequency h...

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TSING SHAN STEEL INDUSTRIAL LIMITED
NO.288,Youyi Road Xi Shan Dristrict , Wuxi, Jiangsu, China
https://www.316lsheet.com/

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