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Hot Rolled Bright Surface 630 Stainless Steel Bar 17-4PH with OD 6-300mm

Certification	ISO, AISI, ASTM, EN, DIN, JIS
Minimum Order Quantity	50 kg
Price	US $1.87-9.85 / kg

Product Details

Model Number	630	Shape	Round
Technique	Hot Rolled	Surface Treatment	Bright
Specification	OD 6-300mm	Production Capacity	50000kgs
Tensile Strength	1105 MPa	Yield Strength	1000 MPa
Elongation	15%	Hardness	38 HRC Max
Thermal Conductivity	18.4 W/m.K	Specific Heat	460 J/kg.K
Electrical Resistivity	800 NΩ.m	Density	7750 Kg/m³
Coefficient Of Thermal Expansion	10.8 µm/m/°C
Highlight	Hot Rolled Stainless Steel Bar , Bright Surface 17-4PH Stainless Steel , OD 6-300mm 630 Stainless Steel

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Product Description

630 Stainless Steel Bar ASTM A564 Type 630 H1075 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).

General Properties

Alloy 17-4 PH is a precipitation hardening martensitic stainless steel with copper and niobium/columbium additions. This 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

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) are recommended. The alloy provides corrosion resistance in chemical, petroleum, paper, dairy, and food processing industries.

Chemical Composition

Table 1: Composition ranges for grade 630 stainless steels

Element	Min (%)	Max (%)
C	-	0.07
Mn	-	1.00
Si	-	1.00
P	-	0.04
S	-	0.030
Cr	15.00	17.50
Ni	3.00	5.00
Cu	3.00	5.00
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)	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

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 and boat propeller shafts
Plastic moulding dies
Valves and gears

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Hot Rolled Bright Surface 630 Stainless Steel Bar 17-4PH with OD 6-300mm

Hot Rolled Stainless Steel Bar

Bright Surface 17-4PH Stainless Steel

OD 6-300mm 630 Stainless Steel