321 Hot Rolled Stainless Steel Sheet
Standard Thickness: 2mm / 3mm / 4mm (In Stock, customizable)
Width Range: 1000mm, 1219mm, 1500mm, 1800mm (Custom Cut)
Length Range: 2000mm - 6000mm, Cut-To-Size Available
Surface Finish: NO.1 Hot Rolled, Pickled & Passivated, Smooth Oxide-Free Surface
Processing Service: Cutting, bending, flattening, punching, welding, custom forming
321 Hot Rolled Stainless Steel Sheet Manufacturer & Supplier in China
Leading China manufacturer of 321 Hot Rolled Stainless Steel Sheet. ASTM A240 Type 321 sheet available in No.1 finish, custom sizes, competitive prices, and fast worldwide delivery. Request a free quote today.
Product Specifications
| Product Name | 321 Hot Rolled Stainless Steel Sheet | Length | As customer required |
|---|---|---|---|
| Width | As customer required | Thickness | As customer required |
| Standard | ASTM | Grade | 321 |
| Tolerance | ±1% | Application | Spaceflight, constructions |
| Delivery Time | 8 ~ 14 days | Surface Finish | 2B |
| Technique | Hot Rolled | Material | Stainless Steel |
| Model Number | 300 Series | Shape | Flat Steel Plate |
| Place of Origin | Other | Advantage | Directly |
| Material Status | Large stock or fast new production | Package | Standard Package |
| Processing Service | Welding, Cutting | Payment | T/T 30% Deposit + 70% Advance |
321 Hot Rolled Stainless Steel Sheet
321 Hot Rolled Stainless Steel Sheet is a titanium-stabilized austenitic stainless steel sheet designed for applications requiring excellent corrosion resistance and superior performance at elevated temperatures. Manufactured in accordance with ASTM A240 Type 321, this material offers outstanding resistance to intergranular corrosion after welding and prolonged exposure to temperatures between 450°C and 850°C.
Compared with standard 304 stainless steel, Grade 321 provides better thermal stability, while compared with 316 stainless steel, it offers excellent oxidation resistance at high temperatures without sacrificing strength and formability.
Our 321 Hot Rolled Stainless Steel Sheets are widely used in heat exchangers, exhaust systems, furnace components, pressure vessels, chemical processing equipment, aerospace applications, and power generation industries.
Chemical Composition
| Element | Content (%) |
|---|---|
| Carbon (C) | ≤0.08 |
| Silicon (Si) | ≤1.00 |
| Manganese (Mn) | ≤2.00 |
| Phosphorus (P) | ≤0.045 |
| Sulfur (S) | ≤0.030 |
| Chromium (Cr) | 17.00–19.00 |
| Nickel (Ni) | 9.00–12.00 |
| Titanium (Ti) | ≥5 × (C + N), Max 0.70 |
| Nitrogen (N) | ≤0.10 |
| Iron (Fe) | Balance |
Mechanical Properties
| Property | Value |
|---|---|
| Tensile Strength | ≥515 MPa |
| Yield Strength (0.2%) | ≥205 MPa |
| Elongation | ≥40% |
| Hardness | ≤217 HB |
| Density | 7.90 g/cm³ |
| Elastic Modulus | 193 GPa |
Available Specifications
| Item | Specification |
|---|---|
| Product | 321 Hot Rolled Stainless Steel Sheet |
| Grade | 321 / UNS S32100 / EN 1.4541 |
| Standard | ASTM A240, ASTM A480, EN 10088-2, JIS G4304 |
| Thickness | 3.0–100 mm |
| Width | 1000 mm, 1219 mm, 1500 mm, 1800 mm, 2000 mm |
| Length | 2000 mm, 2438 mm, 3000 mm, 6000 mm or customized |
| Surface Finish | No.1 (Hot Rolled & Pickled) |
| Edge | Mill Edge / Slit Edge |
| Tolerance | ASTM A480 or customized |
| Processing | Cutting, Shearing, Laser Cutting, Waterjet Cutting |
Surface Finish
Our hot rolled stainless steel sheets are supplied with a No.1 finish, produced by hot rolling followed by annealing and pickling. This finish provides excellent durability and is widely used in industrial fabrication where appearance is less critical but corrosion resistance and strength are essential.
Available surface finishes include:
No.1 Finish
Pickled Surface
Custom Surface Processing upon request
Advantages of 321 Hot Rolled Stainless Steel Sheet
Excellent High-Temperature Resistance
Titanium stabilization significantly improves resistance to sensitization, allowing the material to perform reliably in continuous service up to approximately 800°C.
Superior Corrosion Resistance
321 stainless steel provides excellent resistance to oxidation, atmospheric corrosion, and many organic chemicals, making it suitable for demanding industrial environments.
Superior Corrosion Resistance
The titanium content minimizes chromium carbide precipitation during welding, reducing the risk of intergranular corrosion and eliminating the need for post-weld heat treatment in many applications.
Excellent Fabrication Performance
321 hot rolled sheets can be cut, welded, bent, and formed using conventional fabrication methods.
Typical Applications
321 Hot Rolled Stainless Steel Sheet is widely used in:
Heat Exchangers
Petrochemical Equipment
Furnace Components
Industrial Exhaust Systems
Boiler Equipment
Pressure Vessels
Aircraft Exhaust Parts
Expansion Joints
Chemical Storage Tanks
Power Plant Equipment
Refinery Facilities
High-Temperature Processing Equipment
International Equivalent Grades
| Standard | Grade |
|---|---|
| ASTM | Type 321 |
| UNS | S32100 |
| EN | 1.4541 |
| DIN | X6CrNiTi18-10 |
| JIS | SUS321 |
| ISO | X6CrNiTi18-10 |
Quality Control
Every batch of our 321 Hot Rolled Stainless Steel Sheet undergoes strict quality inspection before shipment.
Available inspection reports include:
Chemical Composition Analysis
Mechanical Property Test
PMI (Positive Material Identification)
Ultrasonic Testing (UT) upon request
Third-Party Inspection (SGS, TÜV, BV, DNV)
EN 10204 3.1 Mill Test Certificate (MTC)
Packaging & Delivery
To ensure safe international transportation, all sheets are carefully packed using export-standard packaging.
Waterproof paper protection
PVC film (optional)
Wooden pallets
Steel strip reinforcement
Export fumigation-free wooden cases (optional)
Suitable for sea, air, and land transportation
Product Features
Why Choose Us
As a professional stainless steel manufacturer and exporter, we provide:
15+ years of manufacturing experience
ASTM, EN, and JIS compliant materials
Large inventory with fast delivery
Customized cutting and processing services
Competitive factory-direct pricing
Strict quality control system
Global export experience to more than 60 countries
Professional technical support before and after sales
Products Description
Excellent resistance to high-temperature oxidation
Superior resistance to intergranular corrosion
Outstanding weldability without post-weld heat treatment in most applications
Good mechanical strength at elevated temperatures
Excellent formability and fabrication performance
Suitable for long-term service in high-temperature environment
faq
Q:1.What is the difference between 321 and 304 stainless steel?
A:321 contains titanium, which improves resistance to intergranular corrosion and makes it more suitable for high-temperature applications than 304 stainless steel.
Q:2.Is 321 stainless steel suitable for welding?
A:Yes. 321 stainless steel offers excellent weldability and generally does not require post-weld heat treatment for most industrial applications.
Q:3.What surface finish is available?
A:The standard hot rolled finish is No.1, with pickled treatment. Additional processing services are available upon request.
Q:4.What is the maximum operating temperature?
A:321 stainless steel is suitable for continuous service up to approximately 800°C, depending on the specific operating environment.
Request a Free Quote
Looking for a reliable 321 Hot Rolled Stainless Steel Sheet manufacturer and supplier?
Our experienced sales and technical team can provide competitive pricing, customized sizes, fast delivery, and professional support for your project. Contact us today to receive a quotation within 24 hours.
Tags:ASTM A240 Type 321 Sheet | 321 Stainless Steel Sheet | Hot Rolled Stainless Steel Sheet | No.1 Finish Stainless Steel Sheet | High Temperature Stainless Steel Sheet
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