EN 1.4948 Stainless Steel – High-Strength Austenitic Stainless Steel For Heavy-Duty Applications

Overview

EN 1.4948 is a high-strength austenitic stainless steel developed for heavy-duty industrial applications requiring superior mechanical properties and corrosion resistance. It is alloyed with nitrogen to enhance strength without compromising ductility and toughness, distinguishing itself from conventional austenitic grades like EN 1.4301. This grade maintains a stable austenitic structure at room temperature, offering excellent resistance to stress corrosion cracking and general corrosion in moderate corrosive environments. It is particularly suitable for high-pressure, high-load components that demand both strength and corrosion durability.

Chemical Composition (wt%)

C ≤ 0.08, Cr: 18.00-20.00, Ni: 8.00-10.00, Mn ≤ 2.00, Si ≤ 1.00, P ≤ 0.045, S ≤ 0.015, N: 0.10-0.20

Typical Mechanical Properties (Annealed Condition)

Tensile Strength (Rm): ≥ 600 MPa; Yield Strength (Rp0.2): ≥ 270 MPa; Elongation (A): ≥ 35%; Brinell Hardness (HB): ≤ 240

Core Advantages

Nitrogen alloying enhances tensile and yield strength while maintaining good ductility; excellent resistance to stress corrosion cracking and general corrosion; non-magnetic at room temperature; good weldability and formability, suitable for complex forming and welding processes; high structural stability under high pressure and load.

Applications

High-pressure pipelines, pressure vessels, industrial pumps and valves, marine structural components, and heavy-duty mechanical parts requiring high strength and corrosion resistance.

Equivalent Grades

AISI 304N, UNS S30451, GB 06Cr19Ni10N, SUS304N1

Stainless Steel Suppliers

If you have project requirements for stainless steel, we welcome your order. GNEE has a large inventory of popular products for you to choose from. It can be processed into various practical product forms, including plates, coils, tubes, bars, wires, etc. For detailed chemical composition information and free samples, please contact our factory immediately. We offer competitive prices and excellent service.Email: info@gneestainless.com

 

Testing and Documentation: Factory test certificate, EN 10204 3.1, chemical report, mechanical report, destructive testing report, non-destructive testing report, PMI test report, visual inspection report, third-party inspection report, NABL certified laboratory report.
Packaging: Wooden crate packaging, bubble wrap packaging, steel strapping, or packaging according to customer requirements.