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Stainless Steel 17-7 PH Round Bars

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Stainless Steel 17-7 PH Round Bars Specification

Coating Type
Uncoated / As rolled

Size
Cut-to-size as per order

Heat Resistance
Yes

Material Composition %
Cr 16-18%, Ni 6.50-7.75%, Al 0.75-1.50%, C 0.09%, Mn 1.00%, Si 1.00%, P 0.040%, S 0.030%, Fe balance

Diameter
3 mm to 200 mm (custom size available)

Hardness
Rockwell C 38-45 (after heat treatment)

Corrosion Resistant
Excellent

Recyclable
Yes

Product Form
Bars/Rods

Tensile Strength
Up to 1310 MPa

Product Name
Stainless Steel 17-7 PH Round Bars

Steel Type
Stainless Steel

Steel Product Type
Round Bar

Grade
17-7 PH

Thickness
0.5 mm to 100 mm (or as per requirement)

Shape
Round

Steel Standard
ASTM A564, AMS 5644, EN, JIS Standards

Surface
Bright, Polished, Peeled, Turned

Composition
Chromium, Nickel, Aluminum, Iron, trace elements

Application
Aerospace, Chemical Processing, Industrial Engineering, Springs, Fasteners, Structural Components

Dimension (L*W*H)
Customizable as per requirement

Weight
Varies as per size and length

Color
Silver/Grey

Material Grade
17-7 PH (UNS S17700)

Finish Type
Bright/Polished

Usage
Springs, washers, diaphragms, high strength parts

Delivery Condition
Solution Annealed, Precipitation Hardened

Elongation
6% (at break)

Minimum Order Quantity
Negotiable

Yield Strength
Up to 1170 MPa

Packing
Export standard sea-worthy packaging

Machinability
Good after solution treatment

Magnetic Properties
Magnetic in conditions after cold working

About Stainless Steel 17-7 PH Round Bars

What Are Specification Stainless Steel 17-7 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
Hex Bar size :	2-100mm A/F
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 :	Round, Square, Hex (A/F), Rectangle Etc.

Equivalent material Of Stainless Steel 17-7 PH Round Bars?

STANDARD	WERKSTOFF NR.	UNS
SS 17-7 PH	-	S17700

Chemical Composition Of Stainless Steel 17-7 PH Round Bars?

Grade	C	P	Si	Ni	Cu	Fe	Mn	S	Cr	AL
SS 17-7 PH	.09	.04	1.0 max	6.50 - 7.75	-	Bal	1.0 max	0.04	16.0 - 18.0	.75 - 1.50

Mechanical Properties Of Stainless Steel 17-7 PH Round Bars?

Grade	Tensile Strength	Yield Strength	Modulus of Elasticity	Poissons Ration	Elongation at Break	Hardness, Rockwell C
17-7 PH	170000 psi	140000 psi	29600 ksi	0.27 0.30	6%	38

High Performance for Demanding Industries

Stainless Steel 17-7 PH Round Bars are trusted in critical fields such as aerospace, chemical processing, and industrial engineering. Their superior tensile and yield strength, combined with excellent heat and corrosion resistance, make them suitable for high-stress environments. Compliance with international standards assures reliability and safety, while their magnetic properties post-cold working add versatility.

Custom Dimensions and Finishes Available

Manufactured in a variety of thicknesses and diameters, these round bars are available in bright polished, peeled, or turned finishes to suit specific project needs. Clients can request sizes cut to order, ensuring the product integrates seamlessly into applications like springs, washers, and structural components. Export-standard, sea-worthy packaging guarantees product integrity during shipment.

FAQs of Stainless Steel 17-7 PH Round Bars:

Q: How is the Stainless Steel 17-7 PH Round Bar delivered and packed for export?

A: These round bars are delivered in a solution annealed and precipitation hardened condition. Packing is conducted using export standard, sea-worthy materials to ensure safe transit and protection from environmental factors, enabling reliable global delivery.

Q: What applications are Stainless Steel 17-7 PH Round Bars commonly used for?

A: Thanks to their high strength, corrosion resistance, and good machinability, these bars are extensively used in aerospace, chemical processing, industrial engineering, springs, fasteners, washers, diaphragms, and high-strength structural components.

Q: When is the machinability of these bars considered optimal?

A: Machinability is considered good after solution treatment when the bar structure is softened, allowing easier shaping and machining into desired components before precipitation hardening is performed for additional strengthening.

Q: Where do the magnetic properties of Stainless Steel 17-7 PH Round Bars become evident?

A: The bars exhibit magnetic properties after cold working, which makes them functional in applications requiring temporary or permanent magnetism, such as certain mechanical or structural components.

Q: What is the process for customizing the size and shape of these round bars?

A: Customers can specify dimensions including thickness (0.5 mm to 100 mm) and diameter (3 mm to 200 mm) as per their requirements. The manufacturer offers cut-to-size options and can accommodate unique shapes for specific applications upon request.

Q: How does the composition contribute to the bars performance and corrosion resistance?

A: The alloy comprises chromium (16-18%), nickel (6.50-7.75%), and aluminum (0.75-1.50%) along with iron and trace elements, providing excellent durability and resistance to corrosion, especially in demanding chemical and industrial environments.

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