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Stainless Steel 17-4 PH Round Bars

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Stainless Steel 17-4 PH Round Bars Specification

Corrosion Resistant
Excellent

Material Composition %
Cr 15-17.5%, Ni 3-5%, Cu 3-5%, C 0.07%, Mn 1%, Si 1%, P 0.04%, S 0.03%, balance Fe

Diameter
6mm to 300mm

Size
Custom cut lengths; standard 1000mm-6000mm

Product Form
Round Bar

Hardness
Approx. 28-44 HRC (based on heat treatment)

Tensile Strength
Up to 1100 MPa (varies with condition)

Heat Resistance
Yes

Recyclable
Yes

Coating Type
None (can be customized)

Product Name
Stainless Steel 17-4 PH Round Bars

Steel Type
Stainless Steel

Steel Product Type
Round Bars

Grade
17-4 PH

Thickness
6mm to 300mm (custom sizes available)

Shape
Round

Steel Standard
ASTM A564/A564M, AMS 5643, ASME SA564

Surface
Bright, Polished, Peeled, Black

Composition
Martensitic precipitation-hardening stainless steel

Application
Aerospace, Chemical Processing, Petroleum, Marine, Nuclear, General Engineering Applications

Dimension (L*W*H)
As per customers specification (Customizable)

Weight
Varies as per size and length

Color
Silver (metallic)

Material Grade
17-4 PH / UNS S17400

Finish Type
Bright, Polished or Custom

Usage
Engineering, Machinery, Aerospace, Medical, Chemical

Density
7.75 g/cm

Bar End Condition
Plain, Threaded (upon request)

Thermal Conductivity
18 W/mK at 100C

Melting Point
1400C - 1440C

Processing Capability
Machinable, Weldable (with precautions), Forging possible

Elongation at Break
approx 15% min (LTR) at H900 condition

Standards Compliance
ASTM, ASME, AMS

Yield Strength
1000 MPa (H900 Condition)

Magnetic Properties
Magnetic in all tempers

About Stainless Steel 17-4 PH Round Bars

What Are Specification Stainless Steel 17-4 PH Round Bars?

Specification	ASTM A564 / ASME SA564
Standard	EN, DIN, JIS, ASTM, BS, ASME, AISI
Round Bars	Outside Diameter in the range of 4mm to 500mm
Bright Bars	Outside Diameter in the range of 4mm to 100mm
Hex Bars	18mm 57mm (11/16 to 2-3/4)
Square Bars	18mm 47mm (11/16 to 1-3/4)
Finish	Black, Bright Polished, Rough Turned, NO.4 Finish, Matt Finish, BA Finish
Length	1 to 6 Meters, Custom Cut Lengths
Form	33 x 30mm to 295 x 1066mm

Equivalent material Of Stainless Steel 17-4 PH Round Bars?

Grade	C	P	Si	Ni	Cu	Fe	Mn	S	Cr	Cb+Ta
SS 17-4 PH	0.07	0.04	1.0 max	3.0 5.0	3.0 5.0	Bal	1.0 max	0.03	15.0 17.5	5 X C / 0.45

Chemical Composition Of Stainless Steel 17-4 PH Round Bars?

Grade	C	Mn	Si	P	S	Cr	Co + Ta	Ni	Fe
SS 17-4	0.04 0.10	2 max	0.75 max	0.045 max	0.03 max	17 - 20	8xC min 1.00 max	9 - 13	62.74

Mechanical Properties Of Stainless Steel 17-4 PH Round Bars?

Density	Melting Point	Tensile Strength	Yield Strength (0.2%Offset)	Elongation
8.0 g/cm3	1454 C (2650 F)	Psi 75000 , MPa 515	Psi 30000 , MPa 205	40 %

Versatile Performance and Strength

Combining significant mechanical strength (yield strength 1000 MPa at H900), magnetic behavior, and corrosion resistance, Stainless Steel 17-4 PH Round Bars thrive in critical environments. Their adaptability is enhanced with customizable dimensions, ensuring suitability for diverse sectors, including aerospace, chemical, marine, and engineering industries.

Precision Engineering and Certification

Produced under strict standards such as ASTM A564/A564M, AMS 5643, and ASME SA564, these round bars guarantee consistent quality. Custom processing options, including plain and threaded ends, various finishes, and tailored sizes, offer flexibility to meet unique operational needs without compromising material integrity or reliability.

Reliable Processing and Fabrication

17-4 PH bars are well-suited for machining, forging, and welding (with appropriate precautions), supporting sophisticated fabrication demands. Their customizable physical properties, from thickness to finish, facilitate seamless integration into advanced mechanical systems, making them a preferred choice for manufacturers and engineers.

FAQs of Stainless Steel 17-4 PH Round Bars:

Q: How are Stainless Steel 17-4 PH Round Bars typically manufactured and finished?

A: These round bars are produced using martensitic precipitation-hardening processes, then finished to customer specifications (bright, polished, peeled, or black). Dimensional customization, including diameter and length, is available to suit technical requirements.

Q: What are the main advantages of using 17-4 PH round bars in engineering applications?

A: Their high yield and tensile strength, magnetic properties, excellent corrosion resistance, and durability under heat exposure up to 316C make them ideal for aerospace, marine, chemical, and nuclear engineering sectors.

Q: When should 17-4 PH round bars be used instead of traditional stainless steels?

A: They are recommended where high mechanical strength, superior corrosion resistance, heat and magnetic properties, and customizable features (dimension and finish) are essential, particularly in highly demanding or safety-critical environments.

Q: Where can Stainless Steel 17-4 PH Round Bars be sourced or customized?

A: These bars are available from specialized exporters, manufacturers, suppliers, and traders, with custom dimensions and finishes offered on request across India and globally to meet project specifications.

Q: What processing capabilities do 17-4 PH round bars offer for fabrication?

A: These bars allow for machining, forging, and welding (with precautions against thermal cracking), making them suitable for complex engineering and manufacturing operations requiring tailored material characteristics.

Q: How do magnetic properties benefit machine and engineering usage?

A: Their consistent magnetic behavior across all tempers makes them practical for applications that require magnetic sensing or actuation while maintaining mechanical integrity, such as in robotic and control devices.

Q: What standards must Stainless Steel 17-4 PH Round Bars adhere to?

A: They comply with ASTM A564/A564M, AMS 5643, and ASME SA564 standards, ensuring quality assurance, reliability, and compatibility with diverse engineering and industrial protocols.

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