Product Parameters

Parameter	Description
Material Grade	904L (UNS N08904 / EN 1.4539) – superaustenitic stainless steel alloy
Applicable Standards	ASTM A240 / ASME SA240 (plate/sheet), ASTM B625
Thickness Range	Coldrolled: ~0.3 mm to 6 mm; Hotrolled: ~3 mm to 150 mm
Width & Length Options	Widths: ~1,000 mm to ~2,500 mm (or customized); Lengths: ~2,000 mm, ~4,000 mm, or custom
Chemical Composition (Typical)	C ≤ 0.02 %; Cr 19–23 %; Ni 23–28 %; Mo 4–5 %; Cu 1–2 %
Mechanical Properties (Typical)	Tensile Strength ≥ 490 MPa; Yield Strength ≥ 220 MPa; Elongation ≥ 35 %
Physical Properties	Density ~ 7.95–8.00 g/cm³; Elastic Modulus ~ 190 GPa
Surface Finishes	Options: 2B, No.1, BA, Mirror, No.4, Brushed, Embossed, etc.
Key Features	Exceptional resistance to sulphuric acid, phosphoric acid, chlorides; superior toughness & weldability
Typical Applications	Chemical processing equipment, sulphuric acid tanks, seawater heat exchangers, oil & gas components

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Surface Treatment of 904L Stainless Steel Sheet Plate

Polished & Mirror Finishes
Enhances aesthetic appeal and provides smooth surfaces for decorative or hygienic applications.

Brushed & Satin Finishes
Creates uniform textures to reduce glare and improve scratch resistance in architectural and industrial uses.

Bright Annealed Finishes
Standard industrial finishes for general fabrication, offering corrosion resistance and a smooth, reflective surface.

Customized & Special Treatments
Embossing, patterned, or specialty coatings available to meet specific functional or design requirements.

Products Description

Q: What are the key advantages of 904L stainless steel sheet plate?

A: It offers superior corrosion resistance, high tensile strength, excellent weldability, and long-term durability in harsh chemical and marine environments.

Q: What industries use 904L stainless steel sheet plate?

A: Commonly used in chemical processing, petrochemical, oil & gas, seawater equipment, pharmaceuticals, and power generation industries.

Q: How is 904L stainless steel sheet plate finished?

A: Available finishes include 2b, ba, no.1, no.4, mirror, brushed, and embossed, depending on aesthetic and functional needs.

Q: Can 904L stainless steel be welded and fabricated easily?

A: Yes, it exhibits excellent weldability and formability, making it suitable for tanks, vessels, piping components, and complex structures.

Q: What makes 904L suitable for aggressive environments?

A: Its high nickel, molybdenum, and chromium content provides exceptional resistance to sulphuric acid, hydrochloric acid, chlorides, and other corrosive chemicals.

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