Density: 7.98g/cm³
Diameter: Ø1-500mm
Tolearance: H8-H11
Equivalent designations:
AISI 904L, UNS N08904, DIN 1.4539, SS2562, URANUS B6
Standard: ASTM A276, ASTM A479, JIS G4303, EN 10088-3
Surface: black, pickling, bright, polish, rough turn, ground polish
904L stainless steel belongs to low carbon, high nickel, molybdenum austenitic stainless steel with acid resistance. It has good activation-passivation transformation ability and excellent corrosion resistance. It has good corrosion resistance in non-oxidizing acids such as sulphuric acid, acetic acid, formic acid and phosphoric acid. It also has good pitting resistance in neutral chloride-containing medium. Good crack corrosion resistance and stress corrosion resistance. Suitable for sulfuric acid of various concentration below 70 C. It also has good corrosion resistance in acetic acid of any concentration and temperature under atmospheric pressure and mixed acid of formic acid and acetic acid.
Chemical composition:
| Grade | UNS | Chemical Component % | |||||||||
| C | Mn | P | S | Si | Cr | Ni | Mo | N | Cu | ||
| 904L | S08904 | 0.02 | 2.00 | 0.045 | 0.035 | 1.00 | 19.0-23.0 | 23.0-28.0 | 4.0-5.0 | 0.10 | 1.0-2.0 |
|
HS Code: |
7222400000 | |||||
| Standard: | ASTM, JIS, GB, EN, GOST | |||||
| Length: | 1-12m | |||||
| Tolerance: | H8, H9, H10, H11 or as required | |||||
| Production method | cold drawn, cold rolled, hot rolled, forged | |||||
Key Mechanical Properties
Tensile Strength: 490 MPa minimum
Yield Strength: 220 MPa minimum
Elongation: 35% minimum
Hardness (Brinell): Max 230 HB
Product Features and Advantages
Outstanding Corrosion Resistance: 904L offers excellent resistance to sulfuric and phosphoric acids, making it ideal for chemical processing and other applications in highly corrosive environments.
High Molybdenum Content: Increases resistance to pitting, especially in chloride-rich environments.
Non-Magnetic Properties: Retains its non-magnetic nature in all conditions, making it suitable for applications requiring magnetic neutrality.
High Durability: Resistant to stress corrosion cracking and crevice corrosion in both oxidizing and reducing environments.
Standards and Equivalent Grades
Our 904L round bars are produced to the highest standards to ensure consistency and quality, adhering to international specifications:
ASTM Standards: A276, A479
EN Standards: 1.4539
JIS Standards: SUS890L
Applications
904L stainless steel round bars are widely used in industries where chemical resistance and durability are essential:
Chemical Processing: Storage tanks, heat exchangers, and reactors that handle aggressive chemicals.
Oil & Gas: Components in offshore environments exposed to seawater and other corrosive elements.
Pharmaceutical Industry: Process equipment that encounters high purity and corrosive environments.
Pulp & Paper: Processing equipment and structural supports for paper mills exposed to harsh chemicals.
Available Sizes and Specifications
Chanson Metals offers 904L round bars in a range of diameters from 6mm to 250mm, with customizable lengths to meet project specifications. Available in multiple finishes, our 904L round bars meet stringent quality standards to ensure suitability for demanding applications.
Quality Assurance at Chanson Metals
Each 904L round bar undergoes rigorous testing, including chemical composition analysis, tensile testing, and corrosion resistance assessment, to ensure they meet our clients' requirements. With a commitment to quality and reliability, Chanson Metals guarantees consistent performance across all 904L stainless steel products.
For more information on our 904L round bars or to request a quote, please contact Chanson Metals’ sales team. We are dedicated to providing the highest quality stainless steel solutions for all industrial applications.