17-4 PH Round Bar Supplier in Mumbai: Specifications, Properties, Applications & Buying Guide
SEO Title: 17-4 PH Round Bar Supplier in Mumbai | Expert Guide & Stock
Focus Keyword: 17-4 PH Round Bar
SEO Meta Description: Looking for 17-4 PH Round Bar in Mumbai? Explore UNS S17400, 1.4542, Type 630, specifications, properties, applications and supply options from Manan Steel & Metals.
URL Slug: 17-4-ph-round-bar-supplier-mumbai
Table of Contents
- What Is 17-4 PH Round Bar?
- Why 17-4 PH Is Preferred for Industrial Components
- 17-4 PH Round Bar Specifications
- 17-4 PH Equivalent Grades
- Chemical Composition of 17-4 PH
- Mechanical Properties and Heat-Treatment Conditions
- Applications of 17-4 PH Round Bar
- 17-4 PH Round Bar Sizes and Finishes
- What to Check Before Buying 17-4 PH
- Why Source 17-4 PH Round Bar from Manan Steel & Metals?
- Frequently Asked Questions
- Request a Quote
What Is 17-4 PH Round Bar?
17-4 PH Round Bar is a precipitation-hardening stainless steel material developed for applications where engineers need a combination of high strength, hardness and corrosion resistance in the same component.
It is commonly identified as UNS S17400, Type 630 and Werkstoff 1.4542.
Unlike conventional stainless steel grades that mainly rely on their alloy chemistry for strength, 17-4 PH can be strengthened through a controlled heat-treatment and ageing process.
This makes it particularly useful when a component needs more mechanical strength than a standard stainless steel grade can provide.
For buyers, however, choosing 17-4 PH is not simply about selecting a grade.
The condition, size, finish, applicable specification and required mechanical properties can all affect whether the material is suitable for the final component.
That is why purchasing the correct 17-4 PH Round Bar from an experienced industrial supplier matters.
Why Is 17-4 PH Used for Demanding Components?
One of the biggest advantages of 17-4 PH stainless steel is its balance of properties.
Depending on the required ageing condition, the material can be processed to achieve substantially higher strength and hardness while retaining useful corrosion resistance.
This combination makes 17-4 PH attractive for components exposed to mechanical loads, industrial environments and demanding operating conditions.
The material is also known for its useful machinability in the solution-treated condition before final ageing, although machining requirements change as hardness increases.
In practical terms, engineers may consider 17-4 PH when a component requires:
- High mechanical strength
- Good hardness
- Corrosion resistance
- Dimensional stability
- Good toughness for the intended condition
- Resistance to wear in suitable applications
- Reliable performance in demanding engineering environments
Current supplier specifications commonly identify 17-4 PH with ASTM A564 and related material standards, while equivalent designations include UNS S17400 and 1.4542.
17-4 PH Round Bar Specifications
When requesting a quotation, simply writing “17-4 PH Round Bar” may not be enough.
A proper material requirement should ideally specify the grade, diameter, length, condition, finish and applicable standard.
Common designations
| Parameter | 17-4 PH |
|---|---|
| Material | Precipitation-hardening stainless steel |
| UNS | S17400 |
| Type | 630 |
| Werkstoff Number | 1.4542 |
| Common designation | 17-4 PH |
| Typical product form | Round Bar |
| Common specification | ASTM A564 / A564M |
| Heat-treatment conditions | Condition A, H900, H1025, H1075, H1150 and others depending on requirement |
The exact specification should always be confirmed against the customer’s drawing, purchase specification and required material condition.
17-4 PH Equivalent Grades
One of the most important parts of purchasing specialty stainless steel is understanding equivalent designations.
You may encounter the following names while searching for the same or closely corresponding material:
- 17-4 PH
- UNS S17400
- Stainless Steel Type 630
- Werkstoff 1.4542
- SUS 630
- X5CrNiCuNb16-4
These designations are useful when comparing international material specifications.
However, an “equivalent” designation should not automatically be treated as interchangeable for every application.
The applicable standard, chemistry, heat-treatment condition and mechanical requirements should be checked before substituting one specification for another.
Chemical Composition of 17-4 PH Stainless Steel
The alloy’s performance comes from its carefully controlled chemistry.
Typical ASTM A564 Type 630 composition includes approximately:
| Element | Typical Specification Limit / Range (%) |
|---|---|
| Chromium | 15.00–17.50 |
| Nickel | 3.00–5.00 |
| Copper | 3.00–5.00 |
| Niobium + Tantalum | 0.15–0.45 |
| Carbon | 0.07 max |
| Manganese | 1.00 max |
| Silicon | 1.00 max |
| Phosphorus | 0.040 max |
| Sulfur | 0.030 max |
| Iron | Balance |
Chromium contributes to stainless-steel corrosion resistance, while copper and niobium play important roles in the precipitation-hardening response.
The actual material certificate should be checked for the supplied heat rather than relying only on a general composition table.
17-4 PH Mechanical Properties and Heat Treatment
One reason 17-4 PH is widely specified for engineering components is its ability to achieve different mechanical-property combinations through ageing treatments.
Commonly encountered conditions include:
H900
The material is aged at approximately 900°F (482°C).
H900 is generally selected when very high strength and hardness are priorities.
H1025
Ageing at approximately 1025°F (552°C) provides a different balance of strength and toughness.
H1075
This condition uses an ageing temperature around 1075°F (580°C).
H1150
H1150 involves ageing around 1150°F (621°C) and is commonly considered when toughness and ductility are more important than achieving the maximum possible strength.
The correct condition should be selected according to the engineering requirement rather than simply choosing the hardest condition.
Published supplier data also shows that mechanical properties vary significantly with heat-treatment condition, which is why a quotation request should clearly state the required condition.
Where Is 17-4 PH Round Bar Used?
The combination of strength and corrosion resistance makes 17-4 PH suitable for a wide variety of industrial components.
Aerospace
17-4 PH can be used for selected aerospace components where high strength and corrosion resistance are required.
Oil & Gas
The material is used for various components such as valves, shafts and other engineered parts, subject to the application’s specification and environmental requirements.
Chemical Processing
17-4 PH can be considered for equipment and components where mechanical strength and stainless-steel corrosion resistance are required.
Marine Engineering
Its properties make it useful for selected marine components where strength and corrosion resistance need to be balanced.
Power Generation
Industrial machinery and power-related equipment may use 17-4 PH for appropriately designed components.
General Engineering
The grade is also used for shafts, gears, valve components, fittings, fasteners and other precision-engineered parts.
Competitor product pages currently emphasize applications across aerospace, marine, chemical processing, oil & gas and other engineering sectors, reflecting the broad industrial search intent surrounding this material.
17-4 PH Round Bar Sizes and Finishes
The required dimensions can vary considerably depending on whether the material is being purchased for machining, fabrication, forging or direct component manufacturing.
17-4 PH bars may be supplied in different forms and finishes depending on the supplier and specification.
Common options can include:
- Bright bar
- Cold finished bar
- Rough turned bar
- Polished bar
- Peeled bar
- Ground bar
- Hot finished bar
- Forged bar
Round bar dimensions can also be supplied according to standard stock sizes or specific customer requirements.
For example, current Indian supplier listings show commercially available diameters ranging from small-diameter bars to substantially larger sections, with custom lengths also offered.
For an accurate quotation, always provide:
Diameter + Length + Grade + Condition + Finish + Quantity + Required Standard
This allows the supplier to identify the correct material instead of sending a generic quotation.
What Should You Check Before Buying 17-4 PH Round Bar?
This is where buyers can avoid many unnecessary procurement problems.
Before placing an order, confirm:
1. Material Grade
Make sure the quotation clearly states 17-4 PH / UNS S17400 / Type 630, where applicable.
2. Condition
Specify whether you require Condition A, H900, H1025, H1075, H1150 or another specified condition.
3. Dimensions
Mention exact diameter and length.
If the material will be machined, also specify the required machining allowance.
4. Standard
Confirm the required ASTM, ASME, AMS or customer-specific specification.
5. Material Test Certificate
For industrial procurement, ask whether the material can be supplied with the required material documentation.
6. Quantity
Mention the number of pieces as well as approximate total weight whenever possible.
7. Delivery Requirement
If the component is required urgently, ask specifically about current stock and dispatch time rather than assuming the material is available.
These details make your RFQ much more precise and help suppliers provide a meaningful commercial offer.
Why Choose Manan Steel & Metals for 17-4 PH Round Bar?
When buying specialty stainless steel, the cheapest quotation is not necessarily the most useful quotation.
The real question is whether the supplier can understand your requirement and provide material matching your specification.
At Manan Steel & Metals, we cater to industrial buyers looking for specialty metals and engineering materials.
Our product range includes stainless steel and alloy products for customers with different dimensional, grade and application requirements.
For a 17-4 PH Round Bar requirement, buyers can discuss their exact specification with our team before finalizing the material.
Whether you require a specific diameter, length, finish, condition or quantity, providing these details upfront helps us understand the requirement and work toward the right supply option.
Need 17-4 PH Round Bar?
Don’t send a vague enquiry saying only:
“17-4 PH required.”
Instead, send us:
Grade: 17-4 PH / UNS S17400
Diameter: ___ mm
Length: ___ mm / ___ metre
Condition: ___
Quantity: ___ kg / pieces
Finish: ___
Required standard: ___
Delivery location: ___
Our team can then review your requirement and assist with the appropriate quotation.
Frequently Asked Questions
Is 17-4 PH stainless steel the same as UNS S17400?
Yes. UNS S17400 is the UNS designation commonly associated with 17-4 PH stainless steel, also known as Type 630 and Werkstoff 1.4542.
What is the main advantage of 17-4 PH Round Bar?
Its major attraction is the combination of high strength, hardness and corrosion resistance, with properties adjustable through precipitation-hardening treatments.
What is 17-4 PH used for?
It is used for selected aerospace, oil & gas, marine, chemical-processing, power-generation and general engineering components where its particular combination of properties is suitable.
What is the difference between H900 and H1150?
They are different ageing conditions. H900 generally provides higher strength and hardness, while H1150 is commonly selected when a greater emphasis is placed on toughness and ductility.
Can 17-4 PH Round Bar be machined?
Yes. Machining is commonly carried out, but the ease of machining depends strongly on the material condition. Components are often machined before the final ageing treatment when the design and process allow.
Get a Quote for 17-4 PH Round Bar
Finding the right 17-4 PH Round Bar is not only about finding a supplier with a product listing.
It is about matching the grade, condition, dimensions, specification and documentation to your actual engineering requirement.
If you are sourcing 17-4 PH Round Bar in Mumbai or anywhere in India, send your required diameter, length, quantity and material condition to Manan Steel & Metals.
Our team can review your requirement and provide a quotation based on the specifications you need.
Looking for 17-4 PH Round Bar? Send your requirement today and let us help you source the right material for your application.
Suggested Internal Links
When uploading this article, link naturally to relevant Manan Steel & Metals pages for:
- Stainless Steel Round Bars
- Alloy Steel Round Bars
- Stainless Steel Bars
- Inconel Products
- Monel Products
- Titanium Products
- Industrial Pipe Fittings
- Stainless Steel Flanges
Suggested Image Placements
Image 1 — After introduction
17-4 PH stainless steel round bars arranged in an industrial steel stockyard.
ALT: 17-4 PH Round Bar supplier in Mumbai
Image 2 — Before chemical composition
Close-up of 17-4 PH round bar with industrial machining equipment.
ALT: 17-4 PH stainless steel round bar UNS S17400
Image 3 — Before applications
Industrial components manufactured from precipitation-hardening stainless steel.
ALT: 17-4 PH Round Bar applications
Suggested FAQ/Schema Questions
- What is 17-4 PH Round Bar?
- Is 17-4 PH the same as UNS S17400?
- What is 17-4 PH used for?
- What are the different 17-4 PH heat-treatment conditions?
- Where can I buy 17-4 PH Round Bar in Mumbai?
Short URL
Use this instead:
17-4-ph-round-bar
This is much cleaner than:
17-4-ph-round-bar-properties-grades-applications
It contains the focus keyword and is short.
2. Outbound links
The previous version mentioned technical sources but didn’t actually provide clickable links. Add 2–3 authoritative DoFollow external links naturally in the article.
I recommend:
- ASTM International — for the relevant ASTM standards
- Outokumpu — for stainless-steel technical information
- Special Metals / Haynes or another authoritative alloy reference where relevant
Important: Don’t add random directories or competitor websites just to satisfy the SEO plugin. We want useful, authoritative outbound links.
3. Why your plugin says “all of them are nofollow”
That’s because the article itself didn’t contain actual external hyperlinks. We need to insert proper links, not merely mention the company/source names.
For example, in the 17-4 PH Specifications section we can write:
The material specification should always be checked against the applicable ASTM requirements. Buyers can refer to ASTM International for official standards information.
And make ASTM International a normal DoFollow link.