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17-4PH Stainless Steel Bar - Precipitation Hardening, Corrosion Resistant, High Strength Alloy 630 Bar

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17-4PH Stainless Steel Bar - Precipitation Hardening, Corrosion Resistant, High Strength Alloy 630 Bar

MOQ:	50
Price:	2.58

Details Information

Product Description

Detail Information

Certification

ISO, AISI, ASTM, EN, DIN, JIS

Shape:

Round

Technique:

Hot Rolled

Surface Treatment:

Bright

Diameter Range:

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

Highlight:

Precipitation Hardening Stainless Steel Bar

Corrosion Resistant 17-4PH Stainless Steel

High Strength Alloy 630 Bar

Product Description

UNS S17400 (17-4 PH, Alloy 630) Stainless Steel Bar Rod

Material 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 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

Applications

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

Standards

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 corrosion resistance in chemical, petroleum, paper, dairy, and food processing industries (equivalent to 304L grade).

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 (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

Physical Properties

Density (kg/m³)	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)
7750	10.8 (0-100°C) 11.6 (0-315°C)	18.4 (100°C) 22.7 (500°C)	460	800

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.

Hardening: Age-hardened at low temperatures to achieve required mechanical properties. Typical shrinkage is 0.10% for condition H1150 and 0.05% for condition H900.

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

Fabrication & Processing

Welding: Grade 630 can be welded using all conventional methods without pre-heating. Careful design is required to prevent weldment stresses in high-strength applications.

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

Typical Applications

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

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Aluminum Material

17-4PH Stainless Steel Bar - Precipitation Hardening, Corrosion Resistant, High Strength Alloy 630 Bar

MOQ:	50
Price:	2.58

Detail Information

Product Description

Detail Information

Certification

ISO, AISI, ASTM, EN, DIN, JIS

Shape:

Round

Technique:

Hot Rolled

Surface Treatment:

Bright

Diameter Range:

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

Minimum Order Quantity:

Price:

2.58

Highlight

Precipitation Hardening Stainless Steel Bar

Corrosion Resistant 17-4PH Stainless Steel

High Strength Alloy 630 Bar

Product Description

UNS S17400 (17-4 PH, Alloy 630) Stainless Steel Bar Rod

Material Overview

General Properties

Applications & Standards

Applications

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

Standards

ASTM A693 grade 630 (AMS 5604B) UNS S17400
EURONORM 1.4542 X5CrNiCuNb 16-4
AFNOR Z5 CNU 17-4PH
DIN 1.4542

Corrosion Resistance

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 (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

Physical Properties

Density (kg/m³)	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)
7750	10.8 (0-100°C) 11.6 (0-315°C)	18.4 (100°C) 22.7 (500°C)	460	800

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.

Hardening: Age-hardened at low temperatures to achieve required mechanical properties. Typical shrinkage is 0.10% for condition H1150 and 0.05% for condition H900.

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

Fabrication & Processing

Welding: Grade 630 can be welded using all conventional methods without pre-heating. Careful design is required to prevent weldment stresses in high-strength applications.

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

Typical Applications

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

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