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304 / 316 Stainless Steel Plate Supplier from China | MESCO
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304 / 316 Stainless Steel Plate Supplier from China | MESCO
Stainless steel plate is a flat-rolled alloy steel product containing a minimum of 10.5% chromium, which forms a self-repairing passive oxide layer that provides excellent corrosion resistance, high-temperature strength, and hygienic surface properties. MESCO is a China-based stainless steel plate supplier offering a comprehensive range of grades — including Grade 304, Grade 316 / 316L, Grade 321, Grade 310S, and Grade 2205 duplex — with thicknesses from 0.3 mm to 100 mm, widths up to 2,000 mm, and surface finishes including 2B, BA, No.4, HL, and 8K mirror. All products ship with a mill test certificate (MTC, EN 10204 3.1) and are available FOB Shanghai Tianjin or Ningbo.
Stainless Steel Plate Grades — Choose Your Material
MESCO stocks and supplies the full range of austenitic, duplex, and ferritic stainless steel plate grades. Select a grade below to view full specifications, chemical composition, and pricing:
Grade 304
Grade 316
Grade 321
Grade 310S
Grade 2205 Duplex
Waves stainless steel
Stainless Steel Plate — Full Specification Table
MESCO stocks and supplies the full range of austenitic, duplex, and ferritic stainless steel plate grades. Select a grade below to view full specifications, chemical composition, and pricing:
| Specification | 304 / 304L | 316 / 316L | 321 | 310S | 2205 Duplex |
| UNS Number | S30400 / S30403 | S31600 / S31603 | S32100 | S31008 | S32205 |
| EN / DIN | 1.4301 / 1.4307 | 1.4401 / 1.4404 | 1.4541 | 1.4845 | 1.4462 |
| JIS / GB Equiv. | SUS304 / 06Cr19Ni10 | SUS316L / 022Cr17Ni12 | SUS321 | SUS310S | — |
Cr / Ni / Mo (%) | 18 / 8 / — | 16 / 10 / 2 | 8 / 10 / — + Ti | 25 / 20 / — | 22 / 5 / 3 |
Thickness Range | 0.3 – 50 mm | 0.4 – 100 mm | 0.5 – 60 mm | 1.0 – 80 mm | 3.0 – 80 mm |
Width (standard) | 1000 / 1219 / 1500 / 2000 mm | Same as 304 | Same as 304 | Same as 304 | 1000 / 1500 mm |
Length | 2000 / 2438 / 6000 mm or custom | Same | Same | Same | 6000 mm or custom |
Surface Finishes | 2B / BA / No.4 / 8K / HL | 2B / BA / No.4 / 8K | 2B / BA | 2B / Matte | 2B / No.4 |
Standard | ASTM A240 / GB/T 3280 | ASTM A240 / GB/T 3280 | ASTM A240 | ASTM A240 | ASTM A240 / EN 10088 |
Typical Application | Food equip / architecture / general | Chemical / marine / pharma | High-temp equipment | Furnace / boiler parts | Offshore / desalination |
MOQ (stock items) | 1 sheet / 1 kg trial | 1 sheet / 1 kg trial | 500 kg | 500 kg | 1,000 kg |
Need a grade or thickness not listed above? Contact MESCO for mill-order enquiries — minimum 500 kg per size.
Stainless Steel Plate Surface Finishes
Surface finish affects appearance, cleanability, corrosion performance, and cost. MESCO supplies the following standard finishes.
| Finish | Appearance | Ra (Roughness) | Best For | Relative Cost |
| 2B | Smooth matte silver, low reflectivity | 0.1 – 0.5 µm | Industrial equipment, food processing | Base |
| BA (Bright Annealed) | Highly reflective, near-mirror | < 0.1 µm | Appliances, kitchen trim, decorative | +10–20% |
| No.4 (Brushed / Satin) | Unidirectional grain lines, matte | 0.2 – 0.8 µm | Architecture, elevators, kitchens | +15–25% |
HL (Hairline) | Fine continuous grain, premium look | 0.3 – 1.0 µm | High-end interiors, cladding | +20–30% |
8K (Mirror Polish) | Near-perfect reflectivity | < 0.05 µm | Luxury interiors, sculpture, signage | +40–70% |
Stainless Steel Plate Applications by Industry
MESCO's stainless steel plate is supplied to manufacturers, fabricators, and distributors across a broad range of industries worldwide.
Food Processing & Beverage Equipment
Food-grade stainless steel plate — typically Grade 304 or 316 — meets FDA 21 CFR and EU Regulation 10/2011 food contact safety requirements. The smooth, non-porous surface resists bacterial adhesion and withstands CIP (clean-in-place) chemical washing. Grade 316 is preferred for contact with brine, vinegar, or acidic food products due to its molybdenum content. MESCO supplies MTC-certified food-grade plate for tanks, conveyor systems, processing tables, and mixing vessels.
Chemical & Petrochemical Processing
Grade 316L and 2205 duplex stainless steel plate are the materials of choice for reactors, pressure vessels, heat exchangers, and pipework in corrosive chemical environments. 316L's low carbon content prevents sensitization during welding; 2205 duplex offers twice the yield strength of austenitic grades, reducing wall thickness and weight in pressure-rated equipment. ASTM A240 / ASME SA-240 compliance is available on request.
Architecture & Interior Design
Decorative stainless steel sheet in No.4 brushed, 8K mirror, and HL hairline finishes is widely used for building facades, elevator cab interiors, column cladding, and bespoke commercial furniture. Grade 304 is standard for interior use; Grade 316 is recommended for coastal or outdoor environments exposed to salt air.
Marine & Offshore
Marine applications demand maximum corrosion resistance in chloride-rich seawater environments. Marine-grade stainless steel plate (316 / 316L / 2205) is specified for boat fittings, offshore platform components, desalination equipment, and subsea structures. MESCO can supply ASTM A240 and Lloyd's / DNV type-approved material.
Pharmaceutical & Medical
Grade 316L stainless steel is the industry standard for pharmaceutical vessels, cleanroom equipment, and medical device components. Its low carbon content, biocompatibility, and smooth surface comply with ISO 13485 and USP Class VI requirements. All pharmaceutical-grade plate ships with full material documentation.
High-Temperature & Industrial Furnaces
Grade 321 and 310S stainless steel plate are engineered for continuous high-temperature service. Grade 321 is titanium-stabilized for service to 900°C; Grade 310S (25% Cr / 20% Ni) resists oxidation to 1100°C and is specified for industrial furnace components, heat treatment baskets, and kiln furniture.
Why Source Stainless Steel Plate from MESCO?
•Mill-Certified Stock Every Order — Original EN 10204 3.1 mill test certificate (MTC) ships with every order, documenting chemical composition, mechanical properties, and heat/coil traceability from source mills including TISCO, BAOWU, and JISCO.
•Ready Stock, Fast Dispatch — Grade 304 and 316 plates are available from warehouse in Shanghai. Standard orders dispatch within 3–7 business days. Trial orders accepted from 1 sheet or 1 kg.
•Full Dimensional Range in One Supplier — From 0.3 mm cold-rolled sheet to 100 mm hot-rolled heavy plate, 2B to 8K mirror finish, standard to custom cut-to-size — a single point of supply for your entire stainless steel flat product requirement.
•Cut-to-Size Processing — Longitudinal slitting, cross-cutting, and shearing to customer drawings. Dimensional tolerances to ±0.1 mm. No minimum quantity on cut-to-size orders.
•Proven Export Experience — 19+ years exporting to 100+ countries. Experienced with all major Incoterms (FOB / CIF / CFR / EXW), LC/TT payment, and documentation for US, EU, Australian, and Middle Eastern import compliance.
•Technical Support at No Charge — MESCO's application team provides grade selection guidance, international standard cross-reference, and weldability advice. RFQ response within 8 hours on business days.
Stainless Steel Plate — Frequently Asked Questions
Q1 — What is the difference between Grade 304 and Grade 316 stainless steel plate?
Grade 304 (UNS S30400 / EN 1.4301) contains 18% chromium and 8% nickel and is the most versatile, widely used stainless steel grade, offering good corrosion resistance for most indoor, food-contact, and architectural applications. Grade 316 (UNS S31600 / EN 1.4401) adds 2–3% molybdenum, which significantly improves resistance to pitting and crevice corrosion caused by chlorides, acids, and marine environments. Grade 316 is approximately 15–25% more expensive than 304 and is recommended for chemical processing, pharmaceutical, marine, and high-chloride food applications.
Q2 — What surface finishes are available, and which should I choose?
MESCO supplies five standard finishes: 2B (smooth matte, the most common industrial finish), BA (bright annealed, highly reflective), No.4 (brushed/satin, fingerprint-resistant), HL (hairline, fine continuous grain), and 8K (mirror polish). For general industrial and food processing use, 2B is the standard choice. For architectural and decorative applications such as elevator interiors, wall cladding, and commercial furniture, No.4 or HL is most common. 8K mirror is specified for luxury interiors and display fixtures.
Q3 — Do you provide a mill test certificate (MTC) with every order?
Yes. MESCO provides an original mill test certificate (MTC) complying with EN 10204 Type 3.1 with every shipment. The MTC documents the heat/coil number, chemical composition (Cr, Ni, Mo, C, Mn, Si, P, S content), mechanical properties (tensile strength, yield strength, elongation), and confirms compliance with the relevant standard — such as ASTM A240, EN 10088, or GB/T 3280. Type 3.2 certificates with third-party countersignature (SGS, Bureau Veritas, TÜV) are available on request.
Q4 — What is the minimum order quantity (MOQ)?
MESCO accepts trial orders from 1 sheet or 1 kg for standard-stocked grades and thicknesses in Grade 304 and Grade 316. For cut-to-size orders there is no minimum quantity, though a minimum per-order charge applies. For non-stocked grades (e.g., 321, 310S, 2205) or non-standard thicknesses, the minimum order is typically 500 kg to 2 metric tons depending on the grade and mill order requirements.
Q5 — What shipping and Incoterms options are available?
MESCO ships globally from Shanghai Tianjin or Ningbo ports. Available Incoterms include FOB, CIF, CFR, and EXW. In-stock orders are ready for shipment within 3–7 business days. Estimated ocean freight transit times: Southeast Asia 7–14 days, Middle East 18–22 days, Europe 25–35 days, US East Coast 30–45 days. Air freight is available for urgent small-volume trial orders.
Q6 — Which international standards do your plates comply with?
MESCO stainless steel plates are supplied to ASTM A240 (US standard), EN 10088 / EN 10028 (European standard), JIS G 4304 / G 4305 (Japanese standard), and GB/T 3280 (Chinese national standard). Cross-reference between standards is available on request. For buyers specifying ASME pressure vessel code, equivalent ASME SA-240 material is available with appropriate documentation.
Q7 — Can MESCO supply food-grade stainless steel plate for FDA or EU food contact compliance?
Yes. MESCO's Grade 304 and Grade 316 stainless steel plates are suitable for food contact applications and comply with FDA 21 CFR (US), EU Regulation 10/2011 (Europe), and GB 9684 (China). A food contact declaration can be provided upon request. For applications involving direct contact with high-chloride foods, brines, or strong cleaning chemicals, Grade 316 is recommended.
Request a Quote for Stainless Steel Plate
- MESCO responds to all stainless steel plate enquiries within 8 hours on business days. To receive an accurate, competitive quotation, please provide the following details:
•Product grade (e.g., 304, 316L, 2205 duplex)
•Thickness × Width × Length (mm or inches)
•Surface finish (2B / BA / No.4 / 8K / HL)
•Quantity (number of sheets, coils, or metric tons)
•Destination port and country
•Required standards or certifications (ASTM A240, EN 10088, ASME SA-240, etc.)
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