17-4 PH Round Bar: Heat Treatment, H900 & H1150 Conditions Explained
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- 17-4 PH Round Bar Supplier India
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- 17-4 PH Heat Treatment
- 17-4 PH H900 Round Bar
- 17-4 PH H1150 Round Bar
- 17-4 PH Stainless Steel Round Bar
- 17-4 PH UNS S17400
- 17-4 PH ASTM A564
- 17-4 PH Round Bar Price
- 17-4 PH Round Bar Stockist India
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- 17-4 PH Mechanical Properties
- 17-4 PH Industrial Applications
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17-4 PH Round Bar Heat Treatment: H900, H1150 & Key Uses
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Meta Description:Learn how 17-4 PH Round Bar heat treatment affects H900 and H1150 conditions, strength, hardness, corrosion resistance, applications and buying requirements.
Table of Contents
- What Is 17-4 PH Round Bar?
- Why Is 17-4 PH Called Precipitation-Hardening Stainless Steel?
- What Is 17-4 PH Heat Treatment?
- Understanding 17-4 PH H900 Condition
- Understanding 17-4 PH H1150 Condition
- How Heat Treatment Changes 17-4 PH Properties
- 17-4 PH UNS S17400
- 17-4 PH ASTM A564
- 17-4 PH Chemical Composition
- 17-4 PH Mechanical Properties
- 17-4 PH Corrosion Resistance
- 17-4 PH Industrial Applications
- 17-4 PH for Shafts and Machined Components
- 17-4 PH for Valves and Pumps
- 17-4 PH for Aerospace and Engineering Components
- 17-4 PH Round Bar Price Factors
- How to Buy 17-4 PH Round Bar
- Why Source 17-4 PH Round Bar from Manan Steel & Metals?
- Frequently Asked Questions
- Conclusion
What Is 17-4 PH Round Bar?
17-4 PH Round Bar is a precipitation-hardening stainless steel round bar used for industrial components requiring a combination of high strength, hardness and corrosion resistance.
The material is commonly identified as:
17-4 PH
UNS S17400
AISI 630
The “PH” in 17-4 PH stands for precipitation hardening.
This means the material can be heat treated to develop different combinations of mechanical properties.
That characteristic makes 17-4 PH particularly useful when engineers need a stainless steel that can provide substantially higher strength than many conventional austenitic stainless steels.
The ATI 17-4 PH technical data provides technical information regarding the alloy’s properties, processing and applications.
Why Is 17-4 PH Called Precipitation-Hardening Stainless Steel?
Traditional stainless steels are often strengthened through methods such as cold working or alloying.
17-4 PH uses a different mechanism.
After solution treatment and appropriate aging, fine precipitates form within the steel’s microstructure.
These precipitates increase strength and hardness.
The result is a material whose properties can be adjusted through controlled heat treatment.
This is one of the main reasons 17-4 PH Round Bar is used for demanding machined components.
What Is 17-4 PH Heat Treatment?
17-4 PH heat treatment is the controlled thermal processing used to develop the required mechanical properties of the material.
The general process involves:
- Solution treatment
- Cooling
- Aging / precipitation hardening
The aging condition selected can significantly influence the final properties.
Therefore, when purchasing 17-4 PH Round Bar, simply stating “17-4 PH” may not always be enough.
The buyer may also need to specify the required condition.
For example:
17-4 PH H900
or
17-4 PH H1150
The ATI technical information on 17-4 PH stainless steel provides additional information on processing and heat-treatment conditions.
Understanding 17-4 PH H900 Condition
H900 is one of the commonly specified aging conditions for 17-4 PH stainless steel.
The H900 condition is associated with a high-strength and high-hardness combination.
This makes it attractive for components where mechanical strength is a major requirement.
Potential applications include:
- Shafts
- Pins
- Gears
- High-strength fasteners
- Valve components
- Mechanical components
- Aerospace-related components
However, higher strength is not automatically the best choice for every application.
The required combination of strength, toughness, ductility and corrosion resistance should be considered before specifying the condition.
Understanding 17-4 PH H1150 Condition
H1150 is another commonly used aging condition for 17-4 PH.
Compared with the highest-strength aging conditions, H1150 is generally selected when a different balance of:
- Strength
- Toughness
- Ductility
- Corrosion performance
is required.
This can make H1150 useful for components where toughness and service performance are important alongside adequate strength.
The actual required condition should be determined from the engineering specification.
How Heat Treatment Changes 17-4 PH Properties
Heat treatment can significantly affect the final properties of 17-4 PH Round Bar.
Depending on the aging condition, engineers can obtain different combinations of:
- Tensile strength
- Yield strength
- Hardness
- Elongation
- Toughness
This is why heat-treatment condition should be included in the purchase requirement.
A procurement enquiry stating only:
“17-4 PH Round Bar required”
may leave an important technical question unanswered.
A more useful enquiry could specify:
17-4 PH / UNS S17400 / Round Bar / H900 / required diameter / quantity
or:
17-4 PH / UNS S17400 / Round Bar / H1150 / required diameter / quantity
17-4 PH UNS S17400
The UNS designation of 17-4 PH is:
UNS S17400
It is also commonly known as:
- AISI 630
- 17-4 PH Stainless Steel
- 17-4 Precipitation Hardening Stainless Steel
For industrial procurement, including the UNS designation helps reduce ambiguity.
A clear enquiry should ideally include:
17-4 PH / UNS S17400 / Round Bar
followed by the applicable standard and required heat-treatment condition.
17-4 PH ASTM A564
ASTM A564/A564M is an important specification for hot-rolled and cold-finished age-hardening stainless steel bars and shapes.
For applicable round-bar requirements, buyers should confirm the precise specification and condition required by the project.
The current ASTM A564/A564M specification information can be used as a reference.
A purchase enquiry may therefore include:
17-4 PH / UNS S17400 / ASTM A564 / Round Bar / H900
where that condition is required.
17-4 PH Chemical Composition
17-4 PH is a chromium-nickel-copper precipitation-hardening stainless steel.
Its composition includes controlled levels of:
- Chromium
- Nickel
- Copper
- Manganese
- Silicon
- Carbon
- Niobium / Columbium
The exact chemical limits should always be checked against the applicable material specification.
For industrial procurement, the Material Test Certificate (MTC) should be checked against the required grade and specification.
17-4 PH Mechanical Properties
The mechanical properties of 17-4 PH depend strongly on the heat-treatment condition.
Important properties can include:
- Tensile strength
- Yield strength
- Elongation
- Hardness
- Impact properties
- Toughness
This is why it is not technically correct to discuss one universal mechanical-property value for every 17-4 PH Round Bar.
The condition must be identified.
For example:
H900 ≠ H1150
They represent different aging conditions and can provide different combinations of mechanical performance.
17-4 PH Corrosion Resistance
17-4 PH offers useful corrosion resistance along with high strength.
It can be used in many environments where both properties are required.
However, the corrosion performance of a stainless steel depends on the actual environment.
Factors such as:
- Chloride concentration
- Temperature
- Moisture
- Chemical exposure
- Stress
- Surface condition
should be considered.
For critical applications, engineers should select the material according to the applicable corrosion and service requirements rather than relying only on the grade name.
17-4 PH Industrial Applications
17-4 PH Round Bar can be machined into many industrial components.
Potential applications include:
- Shafts
- Pins
- Gears
- Bushings
- Valve components
- Pump components
- Fasteners
- Couplings
- Mechanical components
- Aerospace components
- Oil and gas components
- Power-generation equipment
Its combination of strength and corrosion resistance makes it particularly attractive for demanding engineering applications.
17-4 PH for Shafts and Machined Components
Round bar is an important starting material for machined components.
17-4 PH can be used to manufacture:
- Shafts
- Pins
- Spindles
- Couplings
- Bushings
- Mechanical fittings
For such applications, the buyer should clearly specify:
- Diameter
- Length
- Heat-treatment condition
- Surface finish
- Tolerance
- Quantity
- Required certification
The required condition should be selected according to the final component’s service requirements.
17-4 PH for Valves and Pumps
Valves and pumps can operate under pressure, temperature and corrosive fluid conditions.
Components may include:
- Valve stems
- Valve components
- Pump shafts
- Pins
- Bushings
- Mechanical components
17-4 PH may be selected when the component requires a combination of strength and corrosion resistance.
The actual application should determine the appropriate heat-treatment condition.
17-4 PH for Aerospace and Engineering Components
17-4 PH has applications in aerospace and advanced engineering because of its useful combination of strength and corrosion resistance.
However, aerospace procurement typically involves highly specific specifications, traceability and certification requirements.
Therefore, buyers should provide the exact aerospace or engineering specification rather than relying solely on the general designation “17-4 PH.”
17-4 PH Round Bar Price Factors
The price of 17-4 PH Round Bar depends on several factors.
Grade
17-4 PH / UNS S17400 must be clearly specified.
Heat-Treatment Condition
H900, H1150 and other conditions can have different processing and property requirements.
Diameter
Larger sizes require more material and may have different stock availability.
Length
Standard and cut lengths can affect the quotation.
Quantity
Bulk requirements may have different commercial terms from small quantities.
Finish
The required finish may include:
- Black
- Bright
- Peeled
- Ground
- Machined
Certification
Project requirements may include:
- MTC
- Chemical analysis
- Mechanical testing
- PMI
- Third-party inspection
- Heat-number traceability
Therefore, for an accurate 17-4 PH Round Bar Price, buyers should provide the complete requirement.
How to Buy 17-4 PH Round Bar
A good industrial enquiry should include:
Material: 17-4 PH
UNS: S17400
Product: Round Bar
Specification: ASTM A564 / as required
Condition: H900 / H1150 / as required
Diameter: ______ mm
Length: ______ mm
Quantity: ______ kg
Finish: ______
Testing: ______
Certificate: ______
Application: ______
This gives the supplier enough information to understand the requirement before preparing a quotation.
Why Source 17-4 PH Round Bar from Manan Steel & Metals?
Manan Steel & Metals supplies specialty metals and industrial alloy products from Mumbai, India.
Its specialty product range includes 17-4 PH Round Bars, along with Inconel, Monel, Titanium, Nitronic and other alloy products.
For your specific requirement, visit the 17-4 PH Round Bar product page.
You can also explore related specialty materials:
When requesting 17-4 PH, provide the exact heat-treatment condition, dimensions, quantity, specification and documentation requirements.
Frequently Asked Questions
What is 17-4 PH Round Bar?
17-4 PH Round Bar is a precipitation-hardening stainless steel round bar known for its combination of high strength, hardness and corrosion resistance.
What is the UNS number of 17-4 PH?
The UNS designation is S17400.
What does PH mean in 17-4 PH?
PH means precipitation hardening. The material can be strengthened through controlled heat treatment and aging.
What is 17-4 PH H900?
H900 is a precipitation-hardening aging condition associated with high strength and hardness.
What is 17-4 PH H1150?
H1150 is another aging condition that provides a different balance of strength, toughness and ductility.
What is ASTM A564?
ASTM A564/A564M covers hot-rolled and cold-finished age-hardening stainless steel bars and shapes, including applicable precipitation-hardening grades.
Is 17-4 PH corrosion resistant?
Yes. 17-4 PH provides useful corrosion resistance along with high mechanical strength, although actual performance depends on the service environment and material condition.
What affects 17-4 PH Round Bar Price?
Diameter, length, quantity, heat-treatment condition, finish, testing, certification, stock availability and market conditions can affect the final quotation.
Can 17-4 PH Round Bar be machined?
Yes. It can be machined using appropriate machining practices. The material condition and required component tolerances should be considered.
Where can I buy 17-4 PH Round Bar in Mumbai?
Manan Steel & Metals supplies specialty metal products from Mumbai. Buyers can submit their 17-4 PH grade, condition, size and quantity requirements for availability and quotation.
Request a 17-4 PH Round Bar Quotation
Looking for 17-4 PH Round Bar Supplier India?
Send your requirement to Manan Steel & Metals.
Material: 17-4 PH
UNS: S17400
Specification: ASTM A564 / as required
Condition: H900 / H1150 / as required
Diameter: ______ mm
Length: ______ mm
Quantity: ______ kg
Finish: ______
Testing: ______
Certificate: ______
Manan Steel & Metals
Address:
Shop No. 2, Hira Building,
97 Khetwadi Main Road (Nanubhai Desai Road),
Girgaon, Mumbai – 400004, Maharashtra, India
Phone: 7977369869
Email: manansteel@gmail.com
Send your 17-4 PH requirement for a quotation.
Conclusion
17-4 PH Round Bar is a high-performance precipitation-hardening stainless steel product used where strength, hardness and corrosion resistance are important.
One of its biggest advantages is the ability to develop different mechanical-property combinations through controlled aging.
This makes understanding 17-4 PH heat treatment, H900 and H1150 conditions particularly important when purchasing the material.
For an accurate industrial quotation, buyers should specify the grade, UNS designation, applicable standard, heat-treatment condition, diameter, length, quantity, finish and certification requirements.
If your company requires 17-4 PH Round Bar in Mumbai or anywhere in India, send the complete requirement to Manan Steel & Metals.
Specify the condition. Tell us the size and quantity. Let us work on your requirement.
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1. ATI — 17-4 PH Stainless Steel Technical Information
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2. ASTM International — ASTM A564/A564M
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