Wholesale 904L Round Bar - Excellent Sulfuric Acid Resistance, Special Industrial Grade Manufacturer, Supplier

Excellent corrosion resistance and mechanical properties.

Standard: ASTM A276 ASTM A564
Grade: 304 316 321 904L 630
Surface: Black Bright Grinding
Diameter: 1mm to 500mm

Product Description

904L Stainless Steel Bar: High-Performance Alloy

86CrMoV7 (1.2327) Tool Steel: An exceptional hot work tool steel distinguished by its ability to maintain exceptional performance even at high temperatures. Through a precise alloying process, this high-performance alloy steel achieves a perfect combination of wear resistance, high toughness, and thermal stability.

Application Areas of the "King" of Corrosion Resistance

904L stainless steel rods are widely used in demanding applications requiring the highest material quality due to their excellent corrosion resistance, particularly in acidic and chloride-containing environments.

  • Chemical and Pharmaceutical Industries: Used for reactors, vessels, pipes, valves, and pumps that handle highly concentrated sulfuric and phosphoric acids.
  • Offshore Engineering and Oil & Gas: Ideal for seawater desalination, offshore platforms, and equipment operating in hydrogen sulfide environments.
  • Food Processing and Medical Devices: Chosen for its smooth surface and easy cleaning, ensuring food safety and hygiene in surgical instruments and implants.
  • Environmental Protection: Critical for flue gas desulfurization systems in power plants and industrial wastewater treatment equipment.

Specifications of SS 904L Bar

Type Size / Dimensions
904L SS Round bar sizeDiameter: 3-~800mm
Alloy 904L Hex Bar size2-100mm A/F
904L Steel Flat bar sizeThickness: 2 -100mm; Width: 10 to 500mm
ASTM A276 UNS N08904 Square bar4 to 100mm
904L Stainless Steel Angle bar3*20*20~12*100*100
904L Stainless Steel Section3.0 to 12.0mm thickness
N08904 SS Channel Bar80 x 40 to 150 x 75 section
SS 1.4539 Hollow Bar32 OD x 16 ID to 250 OD x 200 ID
Alloy 904L Round Bar FinishCold drawn, centreless ground, hot rolled, smooth turned, polished

Technical Specifications & Composition

UNS WERKSTOFF NR. JIS EN Standard
N08904 1.4539 SUS 904L X1NiCrMoCu25-20-5

Chemical Composition (%)

C: 0.02Si: 1Mn: 2P: 0.045S: 0.035
Cr: 19.0-23.0Ni: 23.0-28.0Mo: 4.0-5.0Cu: 1.0-2.0Fe: Balance

Mechanical Properties

Density7.95 g/cm3
Melting Point1350 °C (2460 °F)
Tensile StrengthMPa – 490 / Psi – 71000
Yield StrengthMPa – 220 / Psi – 32000
Elongation35%

Frequently Asked Questions (FAQ)

What makes 904L stainless steel bars unique?
904L is a high-performance alloy known as the "king" of corrosion resistance. It is specifically designed to resist strong acids like sulfuric acid and is highly resistant to pitting and crevice corrosion in chloride environments.
In which industries are 904L bars most commonly used?
They are primarily used in the chemical and pharmaceutical industries, offshore oil and gas engineering, food processing, medical device manufacturing, and environmental protection systems like flue gas desulfurization.
What are the available sizes and shapes for 904L steel?
We provide a wide range of shapes including round bars (3mm to 800mm), hex bars, flat bars, square bars, angle bars, and hollow bars, with various finishes such as cold drawn, polished, or hot rolled.
Does 904L stainless steel handle high temperatures well?
Yes, 904L maintains exceptional performance and thermal stability even at high temperatures, with a melting point of approximately 1350°C (2460°F).
What is the chemical composition of 904L stainless steel?
It contains a high concentration of Nickel (23-28%) and Chromium (19-23%), along with Molybdenum (4-5%) and Copper (1-2%), which together provide its superior resistance to corrosive media.
Is 904L suitable for marine environments?
Absolutely. Due to its high alloy content, it resists the corrosive effects of seawater and is widely used in offshore platforms and marine equipment where standard stainless steels might fail.

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