304 stainless steel remains a common choice for structural and corrosive industrial applications, yet its high nickel content always brings unstable material costs. 2101 lean duplex steel effectively fixes this industry pain point. With optimized chromium and nitrogen alloying, it greatly reduces nickel usage while providing higher yield strength and better chloride corrosion resistance than conventional 304, delivering more stable overall performance for long-term industrial operation.

As a direct mill supplier in China, we provide qualified hot-rolled and cold-rolled 2101 duplex coils that fully adapt to actual downstream

Product Specifications

Item	Details
Grade	2101 Duplex Stainless Steel (UNS S32101)
Standard	ASTM A240 / EN 10088 / JIS G4305
Thickness	0.3–12 mm
Width	1000–2000 mm
Coil Weight	2–20 Tons
Surface Finish	2B, BA, No.1, No.4, HL
Processing	Slitting, Cut-to-Length, PVC Film, Edge Trimming

Item	Value
C	≤0.04%
Cr	21.0–22.0%
Ni	1.35–1.70%
Mn	4.0–6.0%
Mo	0.10–0.80%
N	0.20–0.25%
Tensile Strength	≥700 MPa
Yield Strength (0.2%)	≥530 MPa
Elongation	≥30%
Hardness	≤290 HB

Why 2101 Duplex Coil Is Different

Higher Strength with Less Material

2101 lean duplex has double the yield strength of 304. Engineers can use thinner plates to meet the same load standard, which greatly reduces raw material consumption for structural projects we've served.

Lower Nickel, More Stable Cost

Unlike nickel-reliant 304, this grade uses chromium and nitrogen for corrosion resistance with low nickel content. Our clients see much milder cost volatility and avoid losses caused by sharp nickel price surges.

Good Resistance in Chloride Environments

In chloride-heavy water treatment and outdoor settings, 2101 resists pitting and stress cracking far better than regular 304, extending the service life of exposed metal components.

Easy for Coil Processing

The coil performs well in slitting, laser cutting, bending and welding. Fabricators can smoothly process it into tanks, wall claddings and structural parts without extra pre-treatment.