"Mehta Metal Industries", founded in 1978 by Babulal Mehta, is one of India's oldest and most trusted suppliers of high-quality stainless steel products.

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SS 431 / 1.4057 Round Bars Manufacturer, Supplier & Exporter

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SS 431 / 1.4057 Round Bars Suppliers and Exporters

SS 431 / 1.4057 Round Bars are martensitic stainless steel bars known for their high strength, good toughness and improved corrosion resistance compared with many standard martensitic grades. Also known as AISI 431 Steel, UNS S43100 Stainless Steel and EN 1.4057 / X17CrNi16-2, this nickel-containing alloy can be hardened through heat treatment.

SS 431 Round Bar Overview

Mehta Metal Industries welcomes enquiries for SS 431 Stainless Steel Round Bars in specified sizes, finishes and heat-treatment conditions, subject to availability and order requirements.

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SS 431 round bar manufacturer and supplier of martensitic stainless steel bars

SS 431 Round Bar Specifications

Parameter Details
Product SS 431 Round Bars
AISI grade 431
UNS designation S43100
EN material number 1.4057
EN designation X17CrNi16-2
JIS designation SUS 431
BS designation 431S29, subject to specification
Material family Martensitic stainless steel
Relevant product standard ASTM A276, where applicable
Supply condition Annealed or quenched and tempered, as specified
Documentation Material Test Certificate and inspection records as agreed

Equivalent Grades SS 431 / 1.4057 Round Bars

Standard Grade designation
AISI 431
UNS S43100
EN material number 1.4057
EN designation X17CrNi16-2
JIS SUS 431
BS 431S29
AFNOR Z15CN16-02

Types of SS 431 / 1.4057 Round Bars

SS 431 Hot-Rolled Round Bars
SS 431 Hot-Rolled Round Bars
SS 431 Polished Round Bars
SS 431 Polished Round Bars
SS 431 Peeled Round Bars
SS 431 Peeled Round Bars
SS 431 Bright Round Bars
SS 431 Bright Round Bars
SS 431 Ground Round Bars
SS 431 Ground Round Bars

Chemical Composition of SS 431 / 1.4057 Round Bars

Element Composition (wt. %)
Carbon (C) 0.12–0.22
Chromium (Cr) 15.00–17.00
Nickel (Ni) 1.50–2.50
Manganese (Mn) 1.50 max
Silicon (Si) 1.00 max
Phosphorus (P) 0.040 max
Sulfur (S) 0.030 max
Iron (Fe) Balance

Mechanical and Physical Properties

Property Reference information
Tensile strength Condition- and size-dependent
Yield strength Condition-dependent
Elongation Depends on heat treatment and applicable specification
Hardness Higher after suitable hardening and tempering
Density Approximately 7.7 g/cm³
Modulus of elasticity Approximately 200–210 GPa
Magnetic properties Magnetic
Corrosion resistance Good for many applications; depends on the service environment

SS 431 / 1.4057 Round Bars Supplier

Mehta Metal Industries welcomes enquiries as an SS 431 / 1.4057 Round Bars Supplier for engineering companies, fabricators, component manufacturers and industrial buyers. Specify the grade, dimensions, quantity, finish and required heat-treatment condition so the enquiry can be assessed against your application.

Supply options, documentation and delivery details are confirmed subject to availability and order requirements.


SS 431 / 1.4057 Round Bars Exporter

As an SS 431 / 1.4057 Round Bars Exporter, Mehta Metal Industries welcomes enquiries from domestic and international customers. Export requirements can be discussed for bar dimensions, marking, packaging, material documentation and shipment arrangements.

Material Test Certificates and inspection records can be requested at the enquiry stage. Final arrangements depend on the order and destination requirements.


Countries We Supply 304 Stainless Steel Round Bars

India

Europe

Germany
United Kingdom
France
Italy
Netherlands
Belgium
Spain
Poland
Austria
Sweden
Finland
Czechia
Portugal
Romania

North America

United States
Canada
Mexico
Guatemala
Belize
Honduras
El Salvador
Nicaragua
Costa Rica
Panama
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Applications and Industries

  • Pump and valve manufacturing: Shafts, valve components and other mechanical parts.
  • Marine engineering: Selected shafts, fasteners and components for suitable service environments.
  • Oil and gas: Equipment parts requiring strength and corrosion resistance.
  • Aerospace and automotive: Selected precision-engineered components.
  • Industrial machinery: Spindles, piston rods, shafts and highly stressed parts.
  • Chemical and process equipment: Components exposed to compatible operating environments.
  • General engineering: Machined parts requiring strength, toughness and controlled material properties.

Quality Assurance

  • ISO 9001:2015: Quality Management System certification, where applicable to the supplying entity and its certified scope.
  • ISO 14001:2015: Environmental Management System certification, where applicable to the supplying entity and its certified scope.
  • ISO 45001:2018: Occupational Health and Safety Management System certification, where applicable to the supplying entity and its certified scope.
  • Material Test Certificate: Can be requested and confirmed for the supplied material.
  • Chemical and mechanical verification: Results should be checked against the ordered grade, standard and heat-treatment condition.
  • Inspection and export packaging: Can be agreed according to order and shipment requirements.

Frequently Asked Questions

  • 1. What is SS 431 stainless steel?
    SS 431 is a nickel-containing martensitic stainless steel known for high strength, good toughness and useful corrosion resistance. Its properties can be adjusted through suitable heat treatment.
  • 2. Is AISI 431 the same as UNS S43100 and 1.4057?
    AISI 431 is commonly associated with UNS S43100 and EN material number 1.4057, designated X17CrNi16-2. Confirm the governing specification before substituting material.
  • 3. What is the chemical composition of SS 431?
    The main alloying elements are chromium at approximately 15–17% and nickel at approximately 1.5–2.5%, alongside controlled amounts of carbon, manganese, silicon, phosphorus and sulfur. The exact limits depend on the applicable specification.
  • 4. Can SS 431 round bars be hardened?
    Yes. SS 431 can be hardened by suitable heat treatment, followed by tempering as required. The final strength, hardness and toughness depend on the treatment and bar dimensions.
  • 5. Is SS 431 corrosion-resistant?
    SS 431 provides good corrosion resistance for many applications and generally performs better than several lower-nickel martensitic grades. It is not suitable for every aggressive or chloride-rich environment.
  • 6. What are the main applications of SS 431 round bars?
    Common applications include pump shafts, valve components, piston rods, spindles, marine equipment parts and other high-strength engineering components.
  • 7. Can I request a Material Test Certificate?
    MTC requirements can be included in your enquiry. Confirm the availability and scope of documentation for the specific material and order.
  • 8. How can I request a quotation?
    Provide the required grade, diameter, length, quantity, heat-treatment condition, applicable standard and delivery destination to Mehta Metal Industries. Pricing and delivery are confirmed subject to availability and order requirements.

Request a Quote

Looking for SS 431 / 1.4057 Round Bars for your industrial or engineering application? Contact Mehta Metal Industries with the following details to request a quotation:


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