Every Grade —
Standard to Super Alloy

We stock and fabricate the full austenitic, duplex, and super-alloy spectrum — including seamless pipe and tube in most grades. Not sure which grade fits your application? Ask our engineers.

Ask Our Engineer Browse Grades
steel and aluminum plates isolated for industrial material supply and fabrication

Our material range

304 / 304L

The workhorse grade. Excellent corrosion resistance for general industrial, food, and landscaping applications. The lowest-cost entry point into stainless steel with broad availability across all product forms.

Chromium

18–20%

Nickel

8–10.5%

Max Temp

870°C

Yield Strength

≥205 MPa

Plate

Sheet

Coil

Pipe & Tube

Bar

Profile

Stainless steel sheet metal stock in large format sizes stored in ZEMSS fabrication workshop China

316 / 316L

Molybdenum addition gives superior resistance to chlorides and pitting. The standard choice for pharmaceutical vessels, coastal structures, marine hardware, and chemical plant components in moderate-severity environments.

Chromium

16–18%

Nickel

10–14%

Max Temp

870°C

Molybdenum

2–3%

Plate

Sheet

Coil

Seamless Pipee

Bar

Custom stainless steel pressure vessel with multiple nozzles – industrial fabrication by ZEMSS China
Pressure vessel

2205 Duplex

Dual austenitic-ferritic microstructure delivers roughly twice the yield strength of 304/316 with superior resistance to stress corrosion cracking and pitting. The cost-effective upgrade for demanding chemical and offshore applications.

Chromium

22%

Nickel

5–6%

Molybdenum

≥450 MPa

Molybdenum

3%

Plate

Sheet

Seamless Pipee

Bar

Stainless steel screw conveyor auger flights fabricated by ZEMSS – custom pipe and spiral fabrication China

When Standard Grades Are Not Enough

For aggressive chemical environments, high-temperature service, or extreme mechanical demands — we stock and fabricate the full specialty spectrum.

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Grade Selection at a Glance

Use as a starting point — our engineers will confirm the right grade for your specific application and environment.

Grade Type Cr % Ni % Mo % Yield (MPa) Max Temp Best For
304 / 304L Austenitic 18–208–10.5 ≥170–205870°C Food equipment, landscaping, general fabrication
316 / 316L Austenitic 16–1810–142–3 ≥170–205870°C Pharma vessels, marine, chemical plant
321 Austenitic 17–199–12 ≥205900°C High-temp welded assemblies, aerospace
309S Austenitic 22–2412–15 ≥2051,000°C Heat exchangers, furnace components
310S Austenitic 24–2619–22 ≥2051,100°C Kilns, furnaces, extreme high-temperature service
430 Ferritic 16–18 ≥205870°C Automotive trim, appliances, decorative panels
2205 Duplex Best value upgrade Duplex 22–234.5–6.53 ≥450300°C Chemical plant, offshore, high-pressure vessels
904L Super Austenitic 19–2323–284–5 ≥220400°C Sulfuric acid, desalination, pulp & paper
Alloy 625 Nickel Alloy 20–23≥588–10 ≥414980°C Extreme chemical, offshore, aerospace
17-4 PH Precip. Hard. 15–17.53–5 ≥1,100315°C Precision shafts, aerospace, medical devices

Not Sure Which Grade?

Tell us your application, operating environment, and any known media. Our engineers will recommend the right grade and available product forms — at no cost, within 24 business hours.