17-4 PH ROUND BAR FOR HIGH-STRENGTH CORROSION-RESISTANT COMPONENTS
| Text to hyperlink | Direct URL | Link setting |
|---|
| ASTM International | https://www.astm.org/ | Follow / DoFollow |
| ASM International | https://www.asminternational.org/ | Follow / DoFollow |
| NACE International | https://www.nace.org/ | Follow / DoFollow |
Focus Keyword: 17-4 PH Round Bar
Meta Description:
17-4 PH Round Bar for shafts, aerospace components, valves and precision engineering. Explore 17-4 PH properties, H900, H1150, hardness, corrosion resistance and supply.
Suggested URL:
https://manansteel.com/17-4-ph-round-bar/
17-4 PH ROUND BAR FOR HIGH-STRENGTH CORROSION-RESISTANT COMPONENTS
17-4 PH Round Bar is a precipitation-hardening stainless steel used when an engineering component requires a combination of high strength, hardness and corrosion resistance.
The grade is commonly identified through several designations, including:
17-4 PH
17-4PH
UNS S17400
AISI 630
Stainless Steel 630
1.4542
The “PH” in 17-4 PH refers to precipitation hardening.
Unlike conventional austenitic stainless steels that cannot be hardened through the same precipitation-hardening route, 17-4 PH can be heat treated to obtain different combinations of strength and hardness.
This makes the material relevant to industrial components where both corrosion resistance and mechanical performance are important.
Typical applications include:
- Shafts
- Pump components
- Valve components
- Aerospace components
- Fasteners
- Gears
- Bushes
- Precision-machined components
- Marine components
- Oil and gas equipment
- Chemical-processing equipment
TABLE OF CONTENTS
- What Is 17-4 PH Round Bar?
- Why Is 17-4 PH Used in Industry?
- 17-4 PH Grade and Equivalent Designations
- 17-4 PH Chemical Composition
- 17-4 PH Mechanical Properties
- 17-4 PH Tensile Strength
- 17-4 PH Yield Strength
- 17-4 PH Hardness
- 17-4 PH Corrosion Resistance
- 17-4 PH Heat Treatment
- What Is 17-4 PH H900?
- What Is 17-4 PH H1025?
- What Is 17-4 PH H1075?
- What Is 17-4 PH H1150?
- 17-4 PH Aging Treatment
- 17-4 PH Machining
- 17-4 PH Welding
- 17-4 PH Shafts
- 17-4 PH Pump Shafts
- 17-4 PH Valve Components
- 17-4 PH Aerospace Applications
- 17-4 PH Marine Applications
- 17-4 PH Oil and Gas Applications
- 17-4 PH Fasteners
- 17-4 PH Bright Bar
- 17-4 PH Forged Bar
- 17-4 PH Round Bar Sizes
- 17-4 PH Equivalent Material
- 17-4 PH vs 316 Stainless Steel
- 17-4 PH vs 15-5 PH
- 17-4 PH Round Bar Price
- How to Buy 17-4 PH Round Bar
- 17-4 PH Supplier in Mumbai
- Frequently Asked Questions
- Request a Quote
- Conclusion
WHAT IS 17-4 PH ROUND BAR?
17-4 PH Round Bar is a precipitation-hardening martensitic stainless steel.
It combines a corrosion-resistant stainless-steel base with the ability to achieve higher strength through controlled heat treatment.
Common designations include:
- 17-4 PH
- UNS S17400
- AISI 630
- 1.4542
It is available in different aged conditions, which can provide significantly different mechanical properties.
This is important for buyers because simply ordering “17-4 PH” may not be enough.
The required condition, such as H900 or H1150, should be clearly specified when requesting material.
WHY IS 17-4 PH USED IN INDUSTRY?
Industrial components sometimes need to satisfy two competing requirements.
The material must be:
Strong enough to carry the required load.
Corrosion resistant enough for the service environment.
17-4 PH is attractive because its precipitation-hardening treatment can significantly increase strength while maintaining useful corrosion resistance.
This makes it relevant to components where a conventional carbon steel may not provide adequate corrosion resistance and a conventional stainless steel may not provide enough strength.
17-4 PH GRADE AND EQUIVALENT DESIGNATIONS
17-4 PH is commonly associated with:
UNS S17400
AISI 630
Stainless Steel 630
1.4542
Depending on the application, specifications such as ASTM A276, ASTM A564 and aerospace specifications may be relevant.
The exact standard should be selected according to the product and application.
For technical standards and materials information, buyers can refer to:
17-4 PH CHEMICAL COMPOSITION
17-4 PH contains chromium and nickel along with copper and other controlled alloying additions.
Typical chemistry includes:
Element | Typical Range
Carbon | Maximum approximately 0.07%
Manganese | Maximum approximately 1.00%
Silicon | Maximum approximately 1.00%
Chromium | Approximately 15–17.5%
Nickel | Approximately 3–5%
Copper | Approximately 3–5%
Niobium + Tantalum | Controlled addition
Iron | Balance
Exact limits depend on the applicable specification.
For industrial procurement, the Material Test Certificate should always be checked against the specified standard.
17-4 PH MECHANICAL PROPERTIES
One of the defining characteristics of 17-4 PH is the ability to obtain different mechanical properties through aging treatment.
Depending on the condition, the material can provide:
- High tensile strength
- High yield strength
- Good hardness
- Useful toughness
- Good corrosion resistance
This makes condition selection extremely important.
H900, H1025 and H1150 are not simply different names for the same product.
They represent different aging conditions and therefore produce different property combinations.
17-4 PH TENSILE STRENGTH
17-4 PH can achieve high tensile strength after precipitation-hardening treatment.
The actual value depends on the aging condition.
For example, a component specified in H900 will have a different mechanical-property profile from one supplied in H1150.
Therefore, when purchasing 17-4 PH Round Bar, specify the required condition rather than requesting only “17-4 PH.”
17-4 PH YIELD STRENGTH
High yield strength is one of the major reasons engineers select 17-4 PH.
Applications involving:
- Shafts
- Valve components
- Pump components
- Aerospace parts
- Fasteners
- High-load mechanical components
may benefit from its high strength-to-weight characteristics.
The required minimum yield strength should be confirmed against the applicable material specification and aging condition.
17-4 PH HARDNESS
17-4 PH hardness changes significantly with aging treatment.
The H900 condition generally provides higher hardness and strength than softer aging conditions such as H1150.
This gives engineers flexibility.
A component requiring maximum strength may use one condition, while another component requiring improved toughness may benefit from a different aging treatment.
Material selection should therefore be based on the actual service requirements.
17-4 PH CORROSION RESISTANCE
17-4 PH provides useful corrosion resistance in many industrial environments.
It can be considered for applications involving:
- Atmospheric exposure
- Water
- Industrial environments
- Petroleum-related equipment
- Chemical-processing equipment
- Marine service
However, corrosion resistance is dependent on the environment.
Highly aggressive chloride, acidic or reducing environments may require another stainless steel or nickel alloy.
For corrosion engineering information, useful technical resources include:
17-4 PH HEAT TREATMENT
Heat treatment is central to the performance of 17-4 PH.
The material is generally solution treated and subsequently aged to obtain the desired mechanical properties.
The selected aging condition can dramatically influence:
- Strength
- Hardness
- Toughness
- Ductility
Common conditions include:
H900
H1025
H1075
H1150
The correct condition should be selected according to component requirements.
WHAT IS 17-4 PH H900?
H900 is a precipitation-hardening condition used when high strength and hardness are required.
It is commonly selected for components where maximum mechanical performance is a priority.
Potential applications include:
- High-strength shafts
- Fasteners
- Aerospace components
- Valve parts
- Precision mechanical components
However, H900 is not automatically the best condition for every application.
The engineer must balance strength against toughness and other service requirements.
WHAT IS 17-4 PH H1025?
H1025 represents another aging condition for 17-4 PH.
Compared with H900, it provides a different balance of strength, hardness and toughness.
The condition may be considered when the application does not require the highest possible strength but needs a different mechanical-property combination.
Always verify the required properties against the applicable specification.
WHAT IS 17-4 PH H1075?
H1075 provides another heat-treatment option between the higher-strength and softer aging conditions.
It can be considered where engineers require a particular balance between:
- Strength
- Hardness
- Toughness
- Ductility
The final condition should be selected based on the component’s operating requirements.
WHAT IS 17-4 PH H1150?
H1150 is a higher-temperature aging condition.
Compared with H900, it generally provides lower strength and hardness but improved toughness and ductility.
This can make H1150 attractive for components where toughness and resistance to mechanical damage are important.
Applications can include selected heavy-duty mechanical components and shafts.
17-4 PH AGING TREATMENT
The aging treatment is what gives precipitation-hardening stainless steel its distinctive mechanical-property flexibility.
Small changes in aging temperature and processing time can influence the resulting properties.
For production components, heat treatment should therefore be performed using a controlled and qualified process.
Heat-treatment records can be particularly important for critical industrial applications.
17-4 PH MACHINING
17-4 PH can be machined in solution-treated and aged conditions.
Machining behaviour changes depending on the hardness condition.
Machining considerations include:
- Tool selection
- Cutting speed
- Feed rate
- Coolant
- Machine rigidity
- Material condition
Machining a high-strength H900 bar may require different parameters from machining a softer condition.
CNC manufacturers should therefore establish cutting parameters based on the actual supplied condition.
17-4 PH WELDING
17-4 PH can be welded using suitable procedures.
However, welding can influence the local microstructure and mechanical properties.
Important considerations include:
- Filler metal
- Heat input
- Preheating
- Post-weld treatment
- Aging condition
- Final mechanical properties
For critical components, welding procedures should be qualified for the intended application.
17-4 PH SHAFTS
17-4 PH is frequently considered for shaft applications requiring a combination of strength and corrosion resistance.
Potential applications include:
- Pump shafts
- Mechanical shafts
- Drive shafts
- Valve shafts
- Marine shafts
- Precision shafts
The selected aging condition should correspond to the required strength and toughness.
17-4 PH PUMP SHAFTS
Pump shafts can experience:
- Rotational loading
- Corrosive fluids
- Vibration
- Wear
- Mechanical stress
17-4 PH can be considered where a stainless steel shaft with high strength is required.
The pump’s fluid chemistry, temperature, rotational speed and shaft loading should be evaluated before selecting the grade.
17-4 PH VALVE COMPONENTS
Valve components may require high strength, corrosion resistance and dimensional stability.
17-4 PH can be considered for:
- Valve stems
- Valve shafts
- Valve bodies in suitable applications
- Internal components
- Fasteners
The actual valve service conditions should determine the final material choice.
17-4 PH AEROSPACE APPLICATIONS
17-4 PH has a strong presence in aerospace and high-performance engineering applications.
Potential uses include:
- Structural components
- Shafts
- Fasteners
- Landing gear-related components
- Engine-related components
- Precision-machined parts
Aerospace applications require strict specification control.
The applicable aerospace material specification should therefore be confirmed before procurement.
17-4 PH MARINE APPLICATIONS
17-4 PH can be considered for selected marine components requiring high strength and corrosion resistance.
Examples include:
- Shafts
- Valve components
- Fasteners
- Pump parts
- Mechanical components
However, seawater and chloride exposure can be demanding.
For severe marine service, engineers should compare 17-4 PH with more corrosion-resistant stainless steels or nickel alloys.
17-4 PH OIL AND GAS APPLICATIONS
Oil and gas equipment can involve high pressure, corrosive fluids and demanding mechanical conditions.
17-4 PH may be considered for selected:
- Valve components
- Shafts
- Pump parts
- Fasteners
- Mechanical components
The material should be selected according to the applicable industry specification and service environment.
17-4 PH FASTENERS
17-4 PH is suitable for selected high-strength stainless-steel fastener applications.
Products may include:
- Bolts
- Nuts
- Studs
- Screws
- Washers
The required condition and mechanical properties should be specified because the heat-treatment condition can significantly influence strength.
17-4 PH BRIGHT BAR
17-4 PH Bright Bar is useful for precision machining applications.
Potential applications include:
- Shafts
- Pins
- Bushes
- Valve stems
- Precision components
- Fasteners
Buyers should specify:
- Diameter
- Tolerance
- Surface finish
- Condition
- Length
17-4 PH FORGED BAR
Forged 17-4 PH Round Bar may be required for larger or heavily loaded components.
Forging and subsequent heat treatment can influence the final material properties.
A forged-bar enquiry should include:
- Diameter
- Length
- Forging condition
- Heat-treatment condition
- Mechanical properties
- Testing requirements
- Certification
17-4 PH ROUND BAR SIZES
17-4 PH Round Bar can be required in a wide variety of sizes.
Buyers may request:
- Small-diameter bars
- Medium-diameter bars
- Large-diameter bars
- Bright bars
- Forged bars
- Cut lengths
Availability depends on diameter, quantity, condition and manufacturing route.
For an accurate quotation, provide the complete dimensional requirement.
17-4 PH EQUIVALENT MATERIAL
Common designations associated with 17-4 PH include:
- UNS S17400
- AISI 630
- Stainless Steel 630
- 1.4542
However, an equivalent designation should not automatically be considered interchangeable.
Before purchasing, compare:
- Chemical composition
- Product form
- Heat-treatment condition
- Mechanical properties
- Applicable standard
- Certification requirements
17-4 PH VS 316 STAINLESS STEEL
17-4 PH and 316 stainless steel are selected for different engineering priorities.
316 is widely used when corrosion resistance and fabrication are the primary requirements.
17-4 PH is generally considered when significantly higher strength and hardness are required alongside useful corrosion resistance.
If the application involves severe chloride exposure, however, 316 or another corrosion-resistant alloy may be preferable depending on the conditions.
The correct choice depends on the operating environment and mechanical requirements.
17-4 PH VS 15-5 PH
Both 17-4 PH and 15-5 PH are precipitation-hardening stainless steels.
17-4 PH is widely used and has extensive industrial applications.
15-5 PH may be selected in applications requiring specific combinations of toughness, strength and corrosion resistance.
Engineers should compare:
- Strength
- Toughness
- Corrosion resistance
- Product form
- Heat-treatment condition
- Availability
- Cost
17-4 PH ROUND BAR PRICE
17-4 PH Round Bar Price depends on:
- Diameter
- Quantity
- Heat-treatment condition
- Surface finish
- Certification
- Testing
- Manufacturing route
- Stock availability
- Market conditions
The price of H900 material can differ from other conditions.
Therefore, a buyer should specify the exact condition when requesting a quotation.
HOW TO BUY 17-4 PH ROUND BAR
For a fast industrial quotation, provide:
Material: 17-4 PH / UNS S17400 / AISI 630
Product: Round Bar
Diameter: ______ mm
Length: ______ mm
Quantity: ______ kg
Condition: H900 / H1025 / H1075 / H1150
Finish: ______
Standard: ______
Hardness: ______
MTC: Required / Not Required
Testing: ______
Application: ______
Delivery Location: ______
17-4 PH ROUND BAR SUPPLIER IN MUMBAI
Companies searching for a 17-4 PH Round Bar Supplier in Mumbai should evaluate:
- Correct grade
- Heat-treatment condition
- Chemical composition
- Mechanical properties
- Dimensional accuracy
- Surface finish
- Certification
- Testing
- Stock availability
- Delivery schedule
Manan Steel & Metals supplies stainless steel and specialty alloy products for industrial requirements.
Customers looking for 17-4 PH Round Bar, UNS S17400, AISI 630 or Stainless Steel 630 can send their required size, condition and quantity for availability and quotation.
FREQUENTLY ASKED QUESTIONS
What is 17-4 PH Round Bar?
17-4 PH Round Bar is a precipitation-hardening stainless steel bar used where high strength, hardness and corrosion resistance are required.
What is the equivalent of 17-4 PH?
Common designations include UNS S17400, AISI 630, Stainless Steel 630 and 1.4542.
What is 17-4 PH H900?
H900 is an aging condition used to achieve high strength and hardness in 17-4 PH stainless steel.
What is the difference between H900 and H1150?
H900 generally provides higher strength and hardness, while H1150 generally provides a different balance with greater toughness and ductility.
Is 17-4 PH stronger than 316?
17-4 PH can achieve substantially higher strength than 316 stainless steel through precipitation hardening. However, 316 is often selected for applications where corrosion resistance is the dominant requirement.
Is 17-4 PH suitable for shafts?
Yes. It can be considered for pump shafts, valve shafts, drive shafts and other components requiring high strength and corrosion resistance.
Is 17-4 PH suitable for marine applications?
It can be used in selected marine applications, but severe chloride and seawater conditions require careful material evaluation.
What is 17-4 PH Round Bar price?
Price depends on diameter, quantity, heat-treatment condition, finish, testing, certification and market conditions.
Where can I buy 17-4 PH Round Bar in Mumbai?
Industrial buyers can contact Manan Steel & Metals with their required size, condition and quantity for availability and quotation.
REQUEST A QUOTE FOR 17-4 PH ROUND BAR
Material: 17-4 PH / UNS S17400 / AISI 630
Product: Round Bar
Diameter: ______ mm
Length: ______ mm
Quantity: ______ kg
Condition: H900 / H1025 / H1075 / H1150
Finish: ______
Standard: ______
Hardness: ______
MTC: Required / Not Required
Testing: ______
Application: ______
Delivery Location: ______
CONTACT MANAN STEEL & METALS
Email:
sales@manansteel.com
Address:
Shop No. 2, Hira Building,
97 Khetwadi Main Road,
Nanubhai Desai Road, Girgaon,
Mumbai – 400004,
Maharashtra, India.
CONCLUSION
17-4 PH Round Bar is an important material for engineering applications where conventional stainless steel may not provide the required mechanical strength.
Its precipitation-hardening capability allows engineers to select different aging conditions according to the application’s requirements.
This makes 17-4 PH particularly relevant to:
High-Strength Shafts
Pump Components
Valve Components
Aerospace Components
Marine Equipment
Oil and Gas Components
Fasteners
Precision-Machined Parts
Industrial Mechanical Components
The most important point for procurement teams is that “17-4 PH” alone does not completely define the required product.
The aging condition can substantially change the mechanical properties.
H900, H1025, H1075 and H1150 should therefore be treated as important purchasing specifications rather than optional terminology.
For example, an engineer looking for maximum strength may have a different requirement from a manufacturer looking for greater toughness.
The application environment also matters.
17-4 PH offers useful corrosion resistance, but it should not automatically be selected for every highly corrosive or chloride-containing environment. Depending on the service conditions, 316 stainless steel, duplex stainless steel or nickel alloys may be more appropriate.
For buyers searching for 17-4 PH Round Bar Supplier, UNS S17400 Round Bar, AISI 630 Round Bar, 17-4 PH H900, 17-4 PH H1150 or 17-4 PH Price in Mumbai, Manan Steel & Metals can evaluate the requirement based on size, quantity, condition and application.
Send the complete requirement for availability and quotation.