Stainless Steel 409 Flat Bar Manufacturers | Astm A240 Grade 409, Uns S40900, En 1.4512 Ferritic Standard

Stainless steel 409 flat bar manufacturer
₹45 - ₹82

Minimum Order : 50 bar

Customization as per requirements


Specification Details
Size Range 6 mm to 100 mm
Length1-6meter
StandardsAstm, Asme, Din, Nf, Jis, En, Ios
FinishedBlack, Bright, Cold Drawn, Polish, Polished, Centreless Ground

Stainless Steel 409 Flat Bar Manufacturers | ASTM A240 Flat Products, EN 10088-2, UNS S40900 Grade

R H Alloys is considered among the dependable Stainless Steel 409 Flat Bar Manufacturers. They are precision cut to sizes with consistent mechanical properties and smooth surface finishes. Stainless Steel 409 Flat Bar is a ferritic stainless steel product that is mainly appreciated for its good corrosion resistance, excellent formability, and cost-effective performance in mildly corrosive and high-temperature environments. It is typically utilized for structural and fabrication applications that require durability and heat resistance. Along with this grade, we also provide general Stainless Steel Flat Bars for applications requiring versatility throughout various industries.
Produced according to international quality standards, Stainless Steel 409 Flat Bar possesses good weldability and oxidation resistance, especially in intermittent high-temperature exposure. Its chromium-based material composition ensures stable performance while keeping material costs low. These flat bars are usually sourced through B2B stainless steel market channels, helping to fulfill great demands for the automotive, power, and industrial fabrication industries. For applications requiring slightly different mechanical properties, Stainless Steel 405 Flat Bars are usually chosen as a suitable alternative material from the same product line.

Mechanical Properties of Stainless Steel 409 Flat Bar

ElementSS 409
Density8.0 g/cm3
Melting Point1454 °C (2650 °F)
Tensile Strength450
Yield Strength (0.2%Offset)240
Elongation25%
Hardness(Brinell(HB) max)131
Hardness(Rockwell B (HR B) max)75
Stainless Steel 409 Flat Bar is preferred for its ability to be easily processed and its long service life in harsh operating conditions. This material retains its strength even after thermal cycling and resists scaling better than general carbon steel materials. For projects where enhanced corrosion resistance with similar processing advantages is needed, Stainless Steel 3Cr12L Flat Bars are often used as a complementary sub-product.

Uses of Stainless Steel 409 Flat Bar

  • Automotive exhaust systems, brackets, and structural supports
  • Heat exchangers, boiler components, and thermal processing equipment
  • Industrial fabrication, frames, and reinforcement structures
  • Power generation and petrochemical plant components
  • General engineering applications requiring heat and oxidation resistance
Stainless Steel 3Cr12L Flat Bars are also used for similar applications where enhanced corrosion resistance and extended service life are essential, making them a practical alternative alongside Stainless Steel 409 Flat Bars.

Clients Project 

Product SuppliedQuantityCities (India)
Stainless Steel 409 Flat Bar Supply100 PiecesRajasthan
SS 409 Flat Bar supply95 PiecesGujarat
Stainless Steel 409 Flat Bar205 PiecesPune, Maharashtra
Stainless Steel 409 Flat Bar Supply165 PiecesVijayawada, Hyderabad




Type of Sub-products

  • Stainless Steel 409 Flat Bar Mill Finishing
    Stainless Steel 409 Flat Bar Mill Finishing

    Stainless Steel 409 Flat Bar Mill Finishing

    Stainless Steel 409 Flat Bar – Mill Finishing is a durable stainless steel flat bar with a standard mill finish, providing corrosion resistance and mechanical strength. Ideal for industrial, structural, and fabrication applications where durability and performance are essential.

  • Stainless Steel 409 Flat Bar Brushed Finish
    Stainless Steel 409 Flat Bar Brushed Finish

    Stainless Steel 409 Flat Bar Brushed Finish

    Stainless Steel 409 Flat Bar – Brushed Finish is a stainless steel flat bar with a smooth, brushed surface that enhances aesthetics and corrosion resistance. Suitable for architectural, decorative, and industrial applications, it combines visual appeal with long lasting performance.