Stainless Steel, Duplex & Nickel Alloy Round Bar Supplier in Mumbai
Moltenium Power Steels is a supplier and stockist of stainless steel round bars, duplex round bars, super duplex round bars, bright bars and nickel alloy round bars in Mumbai.
We support machine shops, engineering companies, fabricators, fastener manufacturers and industrial buyers with round bar products based on their material grade, size, surface finish and application requirements.
Our product range includes stainless steel grades, duplex and super duplex materials, precipitation-hardening stainless steel and selected nickel alloys, subject to availability.
We help customers source round bars for applications such as pump shafts, valves, fasteners, machined components and industrial equipment. Contact our team to confirm product availability, technical specifications and quotation details.
Stainless Steel & Duplex Round Bar Supplier in Mumbai
Selecting the right round bar requires consideration of several factors, including material grade, corrosion resistance, mechanical properties, diameter, surface finish and dimensional tolerance.
Moltenium Power Steels assists industrial buyers in sourcing round bars according to their project and manufacturing requirements. We handle enquiries for stainless steel, duplex, super duplex, nickel alloy and other engineering metal grades.
Our products are intended for customers looking for industrial round bar solutions in Mumbai and nearby areas, subject to stock availability and delivery requirements.
Types of Round Bars We Supply
We handle enquiries for different types of round bars used in engineering, manufacturing, fabrication and industrial applications.
Stainless Steel Round Bars
Stainless steel round bars are used in applications requiring corrosion resistance, durability, strength and machinability. The appropriate grade depends on the operating environment and product requirements.
Commonly requested stainless steel grades include:
- SS 201
- SS 202
- SS 303
- SS 304
- SS 304L
- SS 304H
- SS 309
- SS 310
- SS 316
- SS 316L
- SS 316H
- SS 316Ti
- SS 317
- SS 317L
- SS 321
- SS 321H
- SS 347
- SS 347H
- SS 904
- SS 904L
Grade availability should be confirmed according to current stock and customer requirements.
Duplex Stainless Steel Round Bars
Duplex stainless steel combines characteristics of austenitic and ferritic stainless steels. It is selected for applications that require a combination of strength and corrosion resistance.
Duplex round bars may be used in:
- Chemical processing equipment
- Pumps and valves
- Industrial piping components
- Marine-related equipment
- Oil and gas applications
- Engineering and fabrication projects
Commonly requested duplex grades include:
- UNS S31803
- UNS S32205
Availability depends on the required diameter, specification and stock.
Super Duplex Stainless Steel Round Bars
Super duplex stainless steel is used in demanding applications where higher strength and resistance to specific corrosive environments are required.
Typical applications include:
- Offshore equipment
- Marine engineering
- Desalination equipment
- Chemical processing
- Pumps and valves
- Industrial components
Commonly requested grades may include:
- UNS S32750
- UNS S32760
Please confirm the required grade and applicable specification before placing an order.
17-4 PH Stainless Steel Round Bars
17-4 PH is a precipitation-hardening stainless steel grade. It is selected for applications requiring a combination of strength, hardness and corrosion resistance.
Possible applications include:
- Valve components
- Pump shafts
- Industrial machinery
- High-strength engineering components
- Specialised manufacturing applications
Availability, heat-treatment condition and mechanical properties should be confirmed according to the required specification.
Nickel Alloy Round Bars
Nickel alloy round bars are used in applications requiring specific performance at high temperatures or in corrosive environments.
Our nickel alloy enquiry range may include:
- Inconel
- Incoloy
- Monel
- Hastelloy
- Alloy 20
The correct alloy should be selected based on the operating temperature, chemical exposure, mechanical requirements and applicable technical specification.
Stainless Steel Round Bar Grades
Stainless steel round bars are available in different grades for different industrial and engineering requirements.
| Grade Category | Examples | Selection Factors |
|---|---|---|
| Austenitic stainless steel | 304, 304L, 316, 316L | Corrosion resistance and general engineering |
| High-temperature grades | 310, 321, 347 | Temperature and application requirements |
| Higher-alloy stainless steel | 904L, 317L | Specific corrosion resistance requirements |
| Precipitation-hardening stainless steel | 17-4 PH | Strength, hardness and heat-treatment condition |
| Duplex stainless steel | S31803, S32205 | Strength and corrosion resistance |
| Super duplex stainless steel | S32750, S32760 | Demanding corrosive environments |
The final material grade should be selected based on the application, operating conditions and relevant technical specification.
Stainless Steel Bright Round Bars
Moltenium Power Steels handles enquiries for different round bar surface finishes, depending on the material grade, diameter and availability.
Available Round Bar Finishes
- Export Bright Bar
- Peeled and Turned Bar
- Cold Drawn Bar
- Centreless Ground and Polished Bar
- Black Bar
- Forged Bar
Bright bars may provide improved surface condition and dimensional control compared with certain hot-rolled or forged conditions.
The actual surface quality and tolerance depend on the manufacturing process, material grade, diameter and applicable product specification.
Information Required for Bright Bar Enquiries
Before placing an order, customers should confirm:
- Required diameter
- Material grade
- Surface finish
- Dimensional tolerance
- Straightness requirements
- Required length
- Inspection and certification requirements
Round Bar Sizes, Lengths and Tolerances
Our indicated round bar supply range may include diameters from 10 mm to 800 mm, subject to material grade, manufacturing process and availability.
Round Bar Product Specifications
| Specification | Details |
|---|---|
| Diameter | Approximately 10 mm to 800 mm, subject to availability |
| Product Profile | Round Bar |
| Standard Lengths | 3 metres and 6 metres, depending on size and product |
| Surface Finish | Bright, peeled, turned, cold drawn, ground, polished, black or forged, where available |
| Tolerance | Based on finish, diameter, grade and applicable specification |
| Material Grades | Stainless steel, duplex, super duplex, nickel alloys and other grades |
| Documentation | Mill certificates and inspection documents, where applicable |
Contact our team to confirm the exact grade, diameter, finish, tolerance and documentation available for your requirement.
Round Bar vs Square Bar vs Hex Bar
Selecting the correct bar profile can help simplify machining, fabrication and assembly.
Round Bar
Round bars are commonly used for:
- Shafts
- Pins
- Bushes
- Machined components
- Valve components
- Fastener manufacturing
- Rotating parts
The suitability of a round bar depends on the component design and machining requirements.
Square Bar
Square bars have four flat sides and may be used for:
- Fabrication
- Machine components
- Supports
- Brackets
- Engineering parts
- Applications requiring flat faces
Hexagonal Bar
Hex bars have six flat sides and are often used for:
- Nuts
- Fasteners
- Machined components
- Handles
- Small engineering parts
Hexagonal bar may reduce machining requirements for certain components, depending on the design and production process.
Applications of Round Bars
Stainless steel, duplex and nickel alloy round bars can be used in various industrial and engineering applications.
Common Applications
- Pump Shafts
- Valve Components
- Fasteners
- Studs and Bolts
- Pins
- Machined Components
- Machine Tools
- Industrial Equipment
- Dairy Processing Equipment
- Chemical Processing Equipment
- Engineering Components
- Hinges and Handles
- Fabrication Components
The appropriate material grade should be selected according to the operating conditions and technical requirements of the application.
Industries We Serve
Our round bar products may be suitable for customers operating in the following industries:
- General Engineering
- Industrial Machinery
- Chemical Processing
- Oil and Gas
- Marine Engineering
- Food and Dairy Equipment
- Valve Manufacturing
- Pump Manufacturing
- Fastener Manufacturing
- Fabrication
- Maintenance and Repair
- Industrial Component Manufacturing
Product suitability depends on the material grade, application conditions and required technical specifications.
Quality Control and Material Documentation
Material quality and documentation are important when purchasing industrial round bars.
Depending on the product and customer requirements, documentation and quality checks may include:
- Material Grade Confirmation
- Mill Test Certificate (MTC), where available
- Dimensional Verification
- Surface Inspection
- Applicable Inspection Documents
- Customer-Specific Quality Requirements
The available documentation depends on the product source, material grade, order requirements and applicable specification.
Customers should communicate their documentation requirements before placing an order so availability can be confirmed in advance.
How to Select the Right Round Bar
Before requesting a quotation, customers should consider the following specifications.
1. Material Grade
Specify the required grade, such as SS 304, SS 316L, Duplex S32205 or a particular nickel alloy.
2. Diameter
Provide the required diameter in millimetres.
3. Length
Mention whether you require standard lengths, cut lengths or custom lengths.
4. Surface Finish
Specify whether you need bright, cold drawn, ground, polished, forged or another finish.
5. Quantity
Mention the required quantity in pieces, kilograms, tonnes or metres.
6. Application
Explain the intended application wherever possible. This helps determine the relevant material requirements.
7. Documentation
Specify whether you require an MTC, inspection report or other quality documents.
Why Choose Moltenium Power Steels for Round Bars?
When sourcing round bars in Mumbai, buyers need clear product information and practical quotation support.
You can contact Moltenium Power Steels for:
- Stainless steel round bar enquiries
- Duplex and super duplex round bar requirements
- Nickel alloy round bar enquiries
- Grade and size availability
- Surface finish requirements
- Industrial quantity enquiries
- Material documentation discussions
- Quotation requests
Our team can review your requirements and confirm available options based on product specifications and stock availability.
Frequently Asked Questions
10mm to 800mm, in Export Bright, Cold Drawn, Centreless Ground & Polished, Black and Forged finishes, sourced against H7–H10 tolerance.
300 series, such as 304 and 316, is austenitic and generally non-magnetic, chosen for corrosion resistance and weldability. 400 series, such as 17-4PH, is precipitation-hardening and chosen for higher mechanical strength, commonly used in pump shafts and high-strength fasteners.
Yes — Duplex and Super Duplex bar to SA240 UNS S31803, S32205, S32550, S32750, S32760 and SMO 254 are available, commonly used in marine and offshore fabrication.
3-metre and 6-metre standard lengths are available depending on diameter and grade. Non-standard lengths are available on request.
Bright bar is cold drawn, peeled, or centreless ground and polished to a smooth, tight-tolerance finish, ready for machining with minimal stock removal. Black bar is hot-rolled and retains mill scale, typically used where surface finish and tight tolerance aren’t critical, such as general fabrication.
Hex bar is used almost exclusively for fastener production, such as bolts and nuts, because its flat faces provide wrench engagement without additional machining. This saves time compared to machining flats onto round stock.
Yes — Incoloy, Inconel, Monel, Hastelloy and Alloy 20 round bars are stocked for high-temperature and severely corrosive service applications.
H7 to H10 tolerance is available depending on grade, diameter and finish. Confirm your exact tolerance requirement when ordering.
Yes — we regularly supply bar stock to fastener manufacturers. Contact us with your grade, diameter and quantity for a bulk quote.
Standard stock diameters and grades are typically available for same-city dispatch within 1–2 days. Larger or non-standard diameters may require checking mill availability first.
Machine shops, fastener manufacturers, valve and pump component fabricators, dairy and food equipment builders, and marine/offshore fabrication contractors.
