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304H Stainless Steel Manufacturer

AISI 304H Stainless Steel Supplier


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SS304H · AISI 304H · SUS304H · INOX 304H · Stainless Steel 304H · UNS S30409 · WNR 1.4948

304H Stainless Steel is often used as a material of construction up to about 1500oF.

304H Stainless Steel (S30409) is a modification of the most widely utilized “18-8” chromium nickel austenitic stainless steel. The carbon content is controlled in the range of 0.04–0.10% for increased strength at temperatures above 800°F (427°C). It is an economical and versatile corrosion resistant alloy suitable for a wide range of general purpose applications. Type 304H is non-magnetic in the annealed condition but may become slightly magnetic as a result of cold working or welding.

Industry Names: SS304H, AISI 304H, SUS304H, INOX 304H, Stainless Steel 304H, 304H Steel, Steel 304H.
Specifications: UNS S30409, AFNOR Z6CN18-09, WNR/DIN 1.4948, EURONORM X6CrNi18-10, JIS SUS304H, GOST 08KH18N10
Applications: Chemical and Petrochemical Processing, Petroleum Refining
Features: Resistance to atmospheric corrosion, Resistance to oxidizing solutions

Siddhagiri Metals and Tubes is a prominent supplier of 304H Steel. We supply UNS S30409 in forms such as Pipes, Tubes, Flange, Fasteners, Bars, Sheet Plate etc. Our company is ISO 9001:2015 Certified and CRISIL MSE 4 Rated.


Siddhagiri Metals and Tubes is a globally recognized supplier and exporter of Stainless Steel 304H. We have exported EN 1.4948 Steel to 70 countries worldwide.
Other Names: 304H Stainless Steel, 304H SS, Stainless Steel 304H, 304H, SS304H, 304H Steel, 304H Stainless
Category: AISI 304H, SUS304H, INOX 304H
Material: Stainless Steel
Brand: Siddhagiri Metals and Tubes
Manufacturer: Siddhagiri Metals and Tubes
Rating: 4.6/5 based on 44 customer reviews

304H SS Specifications and Standards

Grade North America France Germany European Japan Russia Italy Spain Sweden UK USA
SS 304H UNS S30409 AFNOR Z6CN18-09 WNR/DIN 1.4948 EURONORM X6CrNi18-10 JIS SUS304H GOST 08KH18N10 304H S30409

Properties of AISI 304H Stainless Steel

  • Chemical Properties
    C Ni Mn P S Si Cr
    MIN 0.040 8.000 - - - - 18.000
    MAX 0.100 10.500 2.000 0.045 0.030 0.750 20.000
  • Mechanical Properties
    Yield Strength
    0.2% Proof
    (MPa)
    Tensile strength
    (MPa)
    Elongation
    (% in 50mm)
    Hardness
    (HRB)
    MIN 205 515 40.00  
    MAX       92
  • Physical Properties
    Density lb/in³ 0.285
    Modulus of Elasticity psi 29 x 10-6
    Thermal Conductivity Btu/ft hr°F 8.7
    Heat Capacity Btu/lb°F 0.12
    Electrical Resistivity ohm-inch 28.7 x 10-6

Forms of Stainless Steel 304H

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