Stainless Steel 317L Round Bar Supplier Mumbai for Chemical and Corrosion-Resistant Applications
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Meta Description: 317L Round Bar Supplier Mumbai supplying UNS S31703 stainless steel bars for chemical processing, pharmaceuticals, oil and gas, power plants and corrosion-resistant components.
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Table of Contents
- What Is 317L Round Bar?
- 317L Stainless Steel UNS S31703
- 317L Chemical Composition
- 317L Round Bar Corrosion Resistance
- 317L Mechanical Properties
- 317L Round Bar Applications
- 317L Welding and Fabrication
- 317L Machining
- 317L Round Bar Sizes and Finishes
- 317L Round Bar Specifications
- What Affects 317L Round Bar Price?
- How to Buy 317L Round Bar
- 317L Round Bar Supplier in Mumbai
- Frequently Asked Questions
- Request a Quote
What Is 317L Round Bar?
Stainless Steel 317L Round Bar is a low-carbon, molybdenum-alloyed austenitic stainless steel used in applications where stronger corrosion resistance is required than many conventional stainless steels can provide.
The grade is identified by UNS S31703.
The additional molybdenum content is particularly important when the material is exposed to certain chemical environments. Outokumpu describes 317L as austenitic stainless steel with higher molybdenum content than standard 316L and enhanced resistance to corrosion in several aggressive environments.
For additional technical information, refer to Outokumpu’s stainless steel technical information.
317L Round Bar is used for components in:
- Chemical processing
- Pharmaceutical equipment
- Petrochemical plants
- Oil and gas
- Power generation
- Pulp and paper
- Pollution-control equipment
- Industrial process equipment
317L Stainless Steel UNS S31703
When purchasing 317L, the UNS designation S31703 is important because it identifies the low-carbon 317L grade.
A typical industrial purchase requirement may state:
Material: Stainless Steel 317L
UNS: S31703
Product: Round Bar
Standard: ASTM A276, where applicable
Diameter: Required size
Length: Required length
Condition: As specified
Finish: As specified
Quantity: Required quantity
ASTM A276 covers stainless steel bars and shapes for general corrosion-resistant and high-temperature applications.
For a standards reference, visit ASTM International.
The exact product specification should be confirmed from the engineering drawing or customer purchase order.
317L Chemical Composition
317L contains chromium, nickel and a higher molybdenum content than many standard austenitic stainless steels.
A commonly specified composition includes approximately:
| Element | Typical / Specified Range |
|---|---|
| Carbon (C) | 0.030% max |
| Manganese (Mn) | 2.00% max |
| Silicon (Si) | 0.75% max |
| Chromium (Cr) | 18.00–20.00% |
| Nickel (Ni) | 11.00–15.00% |
| Molybdenum (Mo) | 3.00–4.00% |
| Phosphorus (P) | 0.045% max |
| Sulphur (S) | 0.030% max |
| Iron (Fe) | Balance |
The exact chemistry must be checked against the applicable product standard.
The combination of chromium, nickel and molybdenum contributes to the alloy’s corrosion resistance.
For purchased material, the supplier’s Mill Test Certificate (MTC) should be used to verify the actual heat chemistry.
317L Round Bar Corrosion Resistance
One of the main reasons for choosing 317L Stainless Steel Round Bar is its resistance to aggressive chemical environments.
The increased molybdenum content compared with 316L improves resistance to localized corrosion in suitable environments.
317L is therefore considered for applications involving certain:
- Acid solutions
- Chloride-containing environments
- Chemical process fluids
- Sulphur-bearing compounds
- Industrial pollutants
The exact corrosion performance depends on concentration, temperature, impurities and exposure conditions.
For this reason, 317L should not be selected simply because an application is described as “corrosive.”
The actual process conditions should be reviewed before final material selection.
A useful technical reference is Outokumpu’s 317L material information.
317L Mechanical Properties
317L is an austenitic stainless steel and is primarily selected for its combination of corrosion resistance, ductility and useful mechanical performance.
Mechanical properties depend on the product form, specification, section size and delivery condition.
Important characteristics include:
| Property | Importance |
|---|---|
| Tensile Strength | Resistance to tensile loading |
| Yield Strength | Resistance to permanent deformation |
| Elongation | Ductility |
| Hardness | Machining and service considerations |
| Toughness | Resistance to fracture |
| Corrosion Resistance | Major reason for grade selection |
For 317L bar, the applicable product standard should be used for acceptance values.
The supplier’s MTC should be checked to verify the actual mechanical results for the supplied heat and condition.
317L Round Bar Applications
Chemical Processing
Chemical processing is one of the principal areas where 317L is considered.
The material can be used for selected components exposed to aggressive chemical environments.
Pharmaceutical Equipment
317L Round Bar may be used for selected pharmaceutical equipment and machined components where corrosion resistance is important.
Oil and Gas
The alloy can be considered for selected oil and gas components where the service environment requires increased corrosion resistance.
Power Plants
317L can be used for selected power-generation equipment and process components.
Pulp and Paper
The chemical environments found in pulp and paper processing can require corrosion-resistant materials, making 317L relevant to selected equipment and components.
Heat Exchangers
Selected heat-exchanger components can use high-alloy stainless steel where the process fluid creates demanding corrosion conditions.
Pumps and Valves
317L Round Bar can be machined into selected:
- Valve components
- Pump components
- Shafts
- Pins
- Bushes
- Fittings
Actual grade selection should depend on both corrosion conditions and mechanical requirements.
Manan’s current 317L product information identifies applications across instrumentation, metallurgical industries, oil and gas, pharmaceuticals and power plants.
317L Welding and Fabrication
The low carbon content of 317L is important for welded construction.
The L designation indicates low carbon, which helps reduce the risk of chromium-carbide precipitation associated with welding compared with the corresponding standard-carbon grade.
317L can be welded using suitable procedures and appropriate filler materials.
For critical fabrication, the welding procedure should account for:
- Welding process
- Filler-metal selection
- Heat input
- Interpass temperature
- Joint design
- Service environment
A welding procedure qualified for a different stainless grade should not automatically be applied to 317L without engineering review.
317L Machining
317L can be machined using conventional processes, but cutting conditions should be appropriate for austenitic stainless steel.
Typical machining operations include:
- Turning
- Milling
- Drilling
- Boring
- Threading
- Grinding
For CNC machining, manufacturers should pay attention to:
Work hardening
Austenitic stainless steel can work harden if cutting conditions cause excessive rubbing rather than efficient cutting.
Heat generation
Appropriate coolant and cutting parameters can help control heat during machining.
Tool selection
Suitable cutting tools and stable workholding are important for achieving consistent results.
Surface finish
The required final finish should be considered when selecting the starting round-bar condition.
317L Round Bar Sizes and Finishes
Industrial buyers may require 317L Round Bar in different diameters and surface finishes.
Typical requirements include:
Bright Round Bar
Suitable for precision machining and applications requiring improved surface condition.
Cold Drawn Round Bar
Useful when tighter dimensional control is required.
Turned or Peeled Bar
Suitable where the starting diameter and surface condition require greater control.
Ground Round Bar
Useful for precision-machining applications.
Hot Rolled Round Bar
Suitable where sufficient machining allowance is available.
Forged Round Bar
Relevant for selected larger-diameter and heavy-engineering requirements.
Manan Steel & Metals publishes 317L Round Bar in different forms and sizes within its stainless-steel product range. View Stainless Steel 317L Round Bar from Manan Steel & Metals.
317L Round Bar Specifications
A complete purchase enquiry should include:
| Requirement | Example |
|---|---|
| Grade | Stainless Steel 317L |
| UNS | S31703 |
| Product | Round Bar |
| Standard | ASTM A276 / applicable specification |
| Diameter | ___ mm |
| Length | ___ mm |
| Condition | As specified |
| Finish | Bright / Ground / Turned |
| Tolerance | ___ |
| Quantity | ___ kg / pieces |
| Testing | MTC / PMI / Mechanical / Other |
Depending on the project, the customer may specify ASTM, ASME, EN or another applicable standard.
The applicable standard should always be confirmed before ordering because product-form requirements can differ between standards.
What Affects 317L Round Bar Price?
The 317L Round Bar price depends on the complete specification.
Nickel and Molybdenum Content
317L contains significant nickel and molybdenum, which contribute to its specialty-alloy cost.
Diameter
Larger diameters require more raw material and can require different processing.
Length
Standard lengths and cut-to-length requirements can have different commercial costs.
Surface Finish
Bright, peeled, turned and ground bars require different levels of processing.
Tolerance
Tighter tolerances can increase machining and inspection requirements.
Quantity
Production quantities and small orders can have different commercial pricing.
Testing
MTC, PMI, dimensional inspection, mechanical testing and third-party inspection may affect the final quotation.
Availability
The availability of a particular diameter and condition can influence delivery and pricing.
For an accurate 317L Round Bar price in Mumbai, provide the complete material specification rather than requesting only a generic price per kilogram.
How to Buy 317L Round Bar
For an industrial enquiry, provide:
Material: Stainless Steel 317L
UNS: S31703
Standard: ASTM A276 / applicable standard
Diameter: ___ mm
Length: ___ mm
Condition: ___
Finish: ___
Tolerance: ___
Quantity: ___ kg / pieces
Testing: ___
Application: Chemical / Pharmaceutical / Oil & Gas / Power / Other
For corrosion-critical applications, also provide the process medium, operating temperature and other relevant service conditions where available.
This information can be useful when confirming material suitability.
317L Round Bar Supplier in Mumbai
For companies searching for a 317L Round Bar Supplier Mumbai, Manan Steel & Metals supplies Stainless Steel 317L Round Bar for industrial and engineering requirements.
Manan’s current published product page identifies Stainless Steel 317L Round Bar as UNS S31700 and lists ASTM A276/A479 and other specifications. However, purchasers requiring the low-carbon 317L grade should explicitly state UNS S31703 in their enquiry to avoid ambiguity.
View the Stainless Steel 317L Round Bar product page.
For a quotation, provide:
317L / UNS S31703
Diameter
Length
Standard
Condition
Finish
Quantity
Testing
Application
A complete specification helps ensure that the quoted material corresponds to the required low-carbon grade.
Frequently Asked Questions
What is 317L Round Bar?
317L Round Bar is a low-carbon austenitic stainless-steel round bar with increased molybdenum content, used for corrosion-resistant industrial applications.
What is the UNS number of 317L?
The UNS designation of 317L is S31703.
It is important to state S31703 when a low-carbon 317L grade is specifically required.
What is 317L used for?
317L can be used for selected chemical-processing, pharmaceutical, oil and gas, power-generation, pulp and paper, heat-exchanger, pump and valve applications.
Why does 317L contain molybdenum?
Molybdenum contributes to improved resistance to localized corrosion and several aggressive chemical environments.
Is 317L corrosion resistant?
Yes. 317L provides high corrosion resistance and is selected for applications where more demanding corrosion performance is required. The actual suitability depends on the service environment.
What is the difference between 317 and 317L?
The L designation indicates lower carbon content. 317L is therefore preferred in many welded applications where controlling carbon-related sensitization is important.
Can 317L Round Bar be machined?
Yes. 317L can be turned, milled, drilled, bored and ground using tooling and cutting parameters appropriate for austenitic stainless steel.
What affects 317L Round Bar price?
Diameter, nickel and molybdenum content, finish, tolerance, quantity, testing, availability and market conditions can influence the final quotation.
How can I get a 317L Round Bar quotation in Mumbai?
Send the 317L / UNS S31703 grade, diameter, length, standard, condition, finish, quantity and testing requirements to Manan Steel & Metals.
Request a Quote for 317L Round Bar
Manan Steel & Metals
Shop No. 2, Hira Building, 97 Khetwadi Main Road (Nanubhai Desai Road), Girgaon, Mumbai – 400004, Maharashtra, India
Phone: 7977369869
Email: manansteel@gmail.com
Website: www.manansteel.com
For a faster quotation, send:
Material: Stainless Steel 317L
UNS: S31703
Specification: ___
Diameter: ___ mm
Length: ___ mm
Condition: ___
Finish: ___
Quantity: ___ kg / pieces
Testing: ___
Application: ___
For chemical or process-industry requirements, mention the service medium and operating conditions whenever available.