"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.

SS 904L / 1.4539 Flat Bars Manufacturer, Supplier & Exporter

SS 904L / 1.4539 Stainless Steel Flat Bars

SS 904L / 1.4539 Flat Bars Overview

Mehta Metal Industries is an SS 904L / 1.4539 Flat Bars Manufacturer in India, Supplier and Exporter, supplying high-alloy stainless steel for chemical processing equipment, acid handling systems and heat exchangers. Its high nickel, molybdenum and copper content provides resistance to aggressive acids, particularly sulfuric acid, and improves resistance to pitting and crevice corrosion.

We offer SS 904L Flat Bars in different sizes and material conditions, subject to availability. Contact us for pricing, Material Test Certificates (MTC) and inspection documentation.

Specifications of SS 904L / 1.4539 Flat Bars

Specification Details
Product Name Stainless Steel 904L Flat Bars
Grade Designations SS 904L / AISI 904L / 1.4539 / UNS N08904 / SUS 904L
Material Type High-Alloy Austenitic Nickel-Chromium-Molybdenum-Copper Stainless Steel
Applicable Standards ASTM A276 / ASTM A479 / ASTM A484, as applicable
Thickness 2–150 mm
Width 10–500 mm
Length Standard or cut length, subject to availability
Finish Hot Rolled, Black, Pickled, Machined or Ground, subject to availability

Equivalent Grades of SS 904L / 1.4539 Flat Bars

Standard / Region Grade Designation
AISI / ASTM 904L
UNS N08904
EN / Werkstoff Nr. 1.4539
EN Grade Name X1NiCrMoCu25-20-5
JIS SUS 904L
British Standard 904S13
AFNOR Z2 NCDU 25-20

Chemical & Mechanical Properties

Chemical Composition of SS 904L Flat Bars (%)

Element Symbol Composition
Carbon C 0.02 Max
Manganese Mn 2.00 Max
Phosphorus P 0.04 Max
Sulfur S 0.03 Max
Silicon Si 1.00 Max
Chromium Cr 19.00–23.00
Nickel Ni 23.00–28.00
Molybdenum Mo 4.00–5.00
Copper Cu 1.00–2.00
Nitrogen N 0.10 Max

Mechanical Properties of SS 904L Flat Bars

Property Requirement
Tensile Strength 490 MPa (71 ksi) Min
Yield Strength 215 MPa (31 ksi) Min
Elongation (Longitudinal) 35% Min
Elongation (Transverse) 25% Min

SS 904L Flat Bar Weight Calculator

Mehta Metal Industries

Material Grade: Stainless Steel SS 904L / 1.4539 | Density: 8.00 g/cm³

Width (mm) 10 – 500
Thickness (mm) 2 – 150
Length per piece (M)
Standard lengths up to 7 M.
Quantity (pieces)
3D Interactive Flat Bar Preview 🖱️ Drag to rotate view

Width:  |  Thickness:  |  Length:

Estimated Total Weight

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Per Metre

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Types of SS 904L / 1.4539 Flat Bars

01

Hot Rolled SS 904L Flat Bars

Used for chemical equipment, structural supports and components requiring further machining.

02

Black SS 904L Flat Bars

Suitable for fabrication stock where the surface will undergo further machining or processing.

03

Pickled SS 904L Flat Bars

Supplied with surface scale removed through pickling before fabrication or further processing.

04

Machined SS 904L Flat Bars

Used for equipment parts requiring prepared dimensions or machined surfaces.

05

Ground SS 904L Flat Bars

Suitable for components requiring a smoother surface and closer dimensional control.

Countries We Supply and Export SS 904L / 1.4539 Flat Bars

Mehta Metal Industries supplies SS 904L / 1.4539 Flat Bars to customers across India and key international markets, including:

India

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

Applications and Industries

  • Chemical Processing: Used for tanks, vessels, piping supports and equipment handling aggressive process chemicals.
  • Sulfuric Acid Plants: Used in acid storage tanks, transfer equipment and selected processing components.
  • Pharmaceutical Manufacturing: Used for process equipment, storage systems and fabricated components in compatible chemical environments.
  • Pulp and Paper: Used for chemical handling equipment, tanks and components exposed to process chemicals.
  • Marine and Offshore: Used for selected equipment components exposed to chloride-containing environments.
  • Heat Exchangers: Used for plates, supports and fabricated components in suitable heat-transfer systems.

Quality Assurance

Mehta Metal Industries checks material grade, dimensions and surface finish against the agreed order specifications.

  • Grade Verification: Material grade and standard are checked against the purchase requirements.
  • Test Documentation: Material Test Certificates (MTCs) can be provided with the supply.
  • Size Checks: Thickness, width and length are inspected against the specified dimensions.
  • Finish Inspection: Surface condition is reviewed before dispatch.
  • Quality Certifications: ISO 9001:2015, ISO 14001:2015 and ISO 45001:2018, within their respective certified scopes.
  • Export Preparation: Packaging and shipping documents are arranged according to destination and order requirements.

Frequently Asked Questions

  • 1. Are SS 904L and 1.4539 Flat Bars equivalent?
    Yes. SS 904L, UNS N08904 and EN 1.4539 are commonly used designations for the same high-alloy austenitic stainless steel grade. Confirm the applicable standard and material certificate before substitution.
  • 2. What are SS 904L Flat Bars used for?
    They are used in chemical processing equipment, sulfuric acid plants, heat exchangers, pharmaceutical equipment, oil and gas facilities and pulp and paper plants.
  • 3. Can I order SS 904L / 1.4539 Flat Bars in custom sizes?
    Custom dimensions can be discussed based on availability. Share your required thickness, width, length, quantity and finish for a quotation.
  • 4. Can you supply SS 904L / 1.4539 Flat Bars to the USA and Canada?
    Buyers in the USA and Canada can enquire about SS 904L / 1.4539 Flat Bars based on their dimensional, material certification and shipping requirements.
  • 5. Can you export Stainless Steel 904L Flat Bars to European countries?
    Enquiries are welcome from Germany, France, Italy, Spain, Poland, the Netherlands, Belgium, Austria and other European countries, subject to supply and shipment feasibility.

Request a Quote for SS 904L / 1.4539 Flat Bars

Looking for an SS 904L / 1.4539 Flat Bars Manufacturer in India, Supplier or Exporter? Contact Mehta Metal Industries with your required dimensions, quantity, finish and documentation requirements. Our team can review your specifications and provide a quotation based on availability.