Xi'an Dongmeng Group Co., Ltd. is one of the most reliable manufacturers and suppliers of 3mm 316 Stainless Steel Sheet | ASTM A240 Marine Grade Stainless Steel Plate Supplier in China, also supports customized service. With abundant experience, we warmly welcome you to wholesale cheap products in stock here and get free sample from our factory. For price consultation, contact us.
The 3mm 316 stainless steel sheet is a high-performance marine-grade stainless steel product designed for use in highly corrosive environments. It offers excellent resistance to seawater, acids, and chloride exposure. Manufactured according to ASTM A240 / ASME SA240 standards, it ensures superior durability, excellent weldability, and long service life.
This material is widely used in marine engineering, chemical processing, oil & gas industries, and architectural applications where corrosion resistance is critical.
👉 Get factory direct supply with custom cutting, fast delivery, and mill test certificate support.
Professional team
7x24 hours delivery
Why Choose 3mm 316 Stainless Steel Sheet?
✔ Excellent resistance to seawater and chloride corrosion
✔ Superior performance in chemical and acidic environments
✔ High strength with good formability and weldability
✔ Long service life with low maintenance cost
✔ Suitable for structural and industrial applications
Chemical Composition (Typical 316 Grade)
Chromium (Cr): 16–18%
Nickel (Ni): 10–14%
Molybdenum (Mo): 2–3%
Carbon (C): ≤0.08%
👉 The addition of Mo is the key factor that makes 316 superior to 304 in marine and chemical applications.
Mechanical Properties (ASTM A240 316)
Tensile Strength: ≥ 515 MPa
Yield Strength: ≥ 205 MPa
Elongation: ≥ 40%
Density: 8.0 g/cm³
Product Specifications
| Item | Description |
|---|---|
| Grade | 316 / 316L |
| Thickness | 3mm |
| Width | 1000mm / 1219mm / 1500mm / custom |
| Length | 2000mm / 2438mm / 3000mm / 6000mm |
| Standard | ASTM A240 / AISI / JIS / EN |
| Surface Finish | 2B / BA / No.1 / Hairline / Mirror |
| Processing | Cutting / Bending / Welding / Polishing |
Surface Finishes Available
2B Finish – Smooth cold rolled surface (most common)
BA Finish – Bright annealed, reflective surface
No.1 Finish – Hot rolled industrial plate
Hairline / Mirror – Decorative architectural use
Applications of 3mm 316 Stainless Steel Sheet
Marine Engineering
Ship components, offshore platforms, seawater equipment
Chemical Industry
Storage tanks, reactors, pipelines, acid-resistant equipment
Food & Pharmaceutical
Processing machines, clean room equipment, sanitary surfaces
Construction & Architecture
Curtain walls, decorative panels, structural cladding
Industrial Equipment
Heat exchangers, machinery covers, engineering parts
Inspection & Quality Assurance
All 3mm 316 stainless steel sheets are strictly tested before shipment:
Chemical composition analysis
Mechanical property testing
Surface inspection (scratches, defects)
Dimensional tolerance control
Third-party inspection available (SGS / BV / TUV)
Packaging & Delivery
Standard seaworthy wooden pallet
Waterproof plastic wrapping
Steel strip reinforcement
Export-grade protection for sea & air shipment
Why Choose Us?
✔ Factory direct supply (competitive pricing)
✔ Stable stock & fast delivery
✔ OEM & custom cutting service
✔ Export experience over 10+ years
✔ Full certification (ISO / SGS / BV)
FAQ
Q1: What is 3mm 316 stainless steel used for?
It is widely used in marine, chemical, construction, and food processing industries.
Q2: Is 316 better than 304 stainless steel?
Yes. 316 has molybdenum, which gives stronger resistance to seawater and chemicals.
Q3: Can you cut the sheet to size?
Yes, we provide customized cutting and fabrication services.
Q4: What is the standard of this sheet?
ASTM A240 standard is commonly used for 316 stainless steel sheets.
Contact Us
If you are looking for a reliable 3mm 316 stainless steel sheet supplier, please contact us for:
Latest price list
Free sample
Custom specifications
Fast quotation within 12 hours
+8615769214734
office@dongmjd.com
Pricing Factors of 316 Stainless Steel Sheet
Raw material cost (Nickel & Molybdenum price fluctuation)
Thickness and size
Surface finish (BA / Mirror higher cost)
Order quantity
Processing requirements
Contact us now to get the latest factory price within 12 hours.
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