When inquiring about the prices of 310S or 321 hot-rolled stainless steel plates, buyers often focus primarily on the "unit price per ton." However, for procurement engineers in sectors such as industrial furnace manufacturing, petrochemicals, power generation, and heat treatment, the decision-making process involves far more than just the quoted price.
Although both 310S and 321 are high-temperature resistant austenitic stainless steels, they are suited to different operating conditions. Factors such as alloy composition, manufacturing processes, inspection requirements, and expected service life all influence the final procurement cost.
Why Are 310S and 321 Plate Prices Different?
| Grade | Main Alloy Characteristics | Primary Advantage |
|---|---|---|
| 310S | 24–26% Cr, 19–22% Ni | Excellent oxidation resistance up to 1100–1150°C |
| 321 | 17–19% Cr, 9–12% Ni + Titanium | Excellent resistance to intergranular corrosion after welding |
321 310S Hot-Rolled Stainless Steel Plate Prices in China on June
| Product | Size (mm) | Grade (China) | Grade (INT) |
Price($/ton) | Remark |
| HR SS Plate | 10.0*1500*6000 | 321/NO.1 | 321/NO.1 | 2581.61 | Slit Edge |
| HR SS Plate | 4.0*1500*6000 | 321/NO.1 | 321/NO.1 | 2515.41 | Slit Edge |
| HR SS Plate | 4.0*1500*6000 | 310S/NO.1 | 310S/NO.1 | 5325.02 | Slit Edge |
| HR SS Plate | 5.0*1500*6000 | 321/NO.1 | 321/NO.1 | 2515.41 | Slit Edge |
| HR SS Plate | 8.0*1500*6000 | 310S/NO.1 | 310S/NO.1 | 5325.02 | Slit Edge |
| HR SS Plate | 12.0*1500*6000 | 309S/NO.1 | 309S/NO.1 | 3559.82 | Slit Edge |
| HR SS Plate | 8.0*1500*6000 | 321/NO.1 | 321/NO.1 | 2566.89 | Slit Edge |
| HR SS Plate | 4.0*1500*6000 | 309S/NO.1 | 309S/NO.1 | 3559.82 | Slit Edge |
| HR SS Plate | 3.0*1500*6000 | 321/NO.1 | 321/NO.1 | 2515.41 | Slit Edge |
| HR SS Plate | 6.0*1500*6000 | 316L/NO.1 | 316L/NO.1 | 4413.00 | Slit Edge |
| HR SS Plate | 4.0*1500*6000 | 316L/NO.1 | 316L/NO.1 | 4413.00 | Slit Edge |
| HR SS Plate | 6.0*1500*6000 | 321/NO.1 | 321/NO.1 | 2566.89 | Slit Edge |
| HR SS Plate | 10.0*1500*6000 | 316L/NO.1 | 316L/NO.1 | 4413.00 | Slit Edge |
| HR SS Plate | 8.0*1500*6000 | 316L/NO.1 | 316L/NO.1 | 4413.00 | Slit Edge |
| HR SS Plate | 6.0*1500*6000 | 304/NO.1 | 304/NO.1 | 2221.21 | Slit Edge |
| HR SS Plate | 5.0*1500*6000 | 316L/NO.1 | 316L/NO.1 | 4413.00 | Slit Edge |
| HR SS Plate | 5.0*1500*6000 | 304/NO.1 | 304/NO.1 | 2221.21 | Slit Edge |
| HR SS Plate | 8.0*1500*6000 | 304/NO.1 | 304/NO.1 | 2221.21 | Slit Edge |
| HR SS Plate | 12.0*1500*6000 | 310S/NO.1 | 310S/NO.1 | 5325.02 | Slit Edge |
| HR SS Plate | 8.0*1500*6000 | 309S/NO.1 | 309S/NO.1 | 3559.82 | Slit Edge |
| HR SS Plate | 3.0*1500*6000 | 304/NO.1 | 304/NO.1 | 2265.34 | Slit Edge |
| HR SS Plate | 6.0*1240*3000 | 201 J1/NO.1 | 201 J1/NO.1 | 1257.71 | Slit Edge |
| HR SS Plate | 10.0*1240*3000 | 201 J1/NO.1 | 201 J1/NO.1 | 1257.71 | Slit Edge |
| HR SS Plate | 12.0*1240*3000 | 201 J1/NO.1 | 201 J1/NO.1 | 1257.71 | Slit Edge |
| HR SS Plate | 6.0*1240*6000 | 201 J1/NO.1 | 201 J1/NO.1 | 1257.71 | Slit Edge |
| HR SS Plate | 4.0*1240*6000 | 201 J1/NO.1 | 201 J1/NO.1 | 1257.71 | Slit Edge |
| HR SS Plate | 8.0*1240*3000 | 201 J1/NO.1 | 201 J1/NO.1 | 1257.71 | Slit Edge |
| HR SS Plate | 10.0*1240*6000 | 201 J1/NO.1 | 201 J1/NO.1 | 1257.71 | Slit Edge |
| HR SS Plate | 8.0*1240*6000 | 201 J1/NO.1 | 201 J1/NO.1 | 1257.71 | Slit Edge |
| HR SS Plate | 12.0*1240*6000 | 201 J1/NO.1 | 201 J1/NO.1 | 1257.71 | Slit Edge |
| HR SS Plate | 4.0*1240*3000 | 201 J1/NO.1 | 201 J1/NO.1 | 1257.71 | Slit Edge |
| HR SS Plate | 4.0*1500*6000 | 304/NO.1 | 304/NO.1 | 2221.21 | Slit Edge |
| HR SS Plate | 10.0*1500*6000 | 304/NO.1 | 304/NO.1 | 2221.21 | Slit Edge |
| HR SS Plate | 3.0*1800*6000 | 304/NO.1 | 304/NO.1 | 2302.12 | Slit Edge |
| HR SS Plate | 4.0*1800*6000 | 304/NO.1 | 304/NO.1 | 2302.12 | Slit Edge |
| HR SS Plate | 5.0*1800*6000 | 304/NO.1 | 304/NO.1 | 2302.12 | Slit Edge |
| HR SS Plate | 6.0*1800*6000 | 304/NO.1 | 304/NO.1 | 2302.12 | Slit Edge |
| HR SS Plate | 8.0*1800*6000 | 304/NO.1 | 304/NO.1 | 2302.12 | Slit Edge |
| HR SS Plate | 10.0*1800*6000 | 304/NO.1 | 304/NO.1 | 2302.12 | Slit Edge |
Remarks:
1. The above prices are ex-factory prices including tax, and there will be a small delivery fee when the customer picks up the goods. Does not include freight.
2. The materials (grades) at China and abroad are based on public data to select the most similar specifications, which does not mean that the corresponding materials (grades) are completely consistent.
3. The weight of the products in the table is obtained by weighing when they are traded.
If you need to inquire about the price of Hot-Rolled Stainless Steel Plate of other specifications, materials and brands, or inquire about the FOB or CIF price of Hot-Rolled Stainless Steel Plate in this table, you can submit an inquiry form, and the customer service staff will give a manual feedback.
Questions Buyers Should Ask Before Requesting a Quote
Providing complete technical specifications enables suppliers to prepare accurate quotations and reduces the risk of procurement delays.
Include the following information:
Material grade (310S or 321)
Applicable standard (ASTM A240, EN 10088, JIS, etc.)
Thickness
Width
Length
Quantity
Surface finish
Edge condition (Mill Edge or Slit Edge)
Required tolerances
Heat treatment requirements
EN 10204 3.1 certificate requirement
Third-party inspection requirement (SGS, BV, TUV, etc.)
Delivery destination
Required delivery schedule
310S VS. 321:Which Grade Is Better for Your Application?
| Application | Recommended Grade |
|---|---|
| Furnace Liners | 310S |
| Heat Treatment Equipment | 310S |
| Kilns | 310S |
| Petrochemical Heat Exchangers | 321 |
| Exhaust Systems | 321 |
| Pressure Vessels | 321 |
310S & 321 Hot-Rolled Stainless Steel Plate Supplier and Manufacturer
As a leading global supplier in the stainless steel plate supply chain, we maintain a ready stock of standard sizes (e.g., 1500x6000mm) available for immediate shipment, thereby shortening lead times for urgent projects.
310S & 321 Hot-Rolled Plate specification
| Category | 310S 321 |
| Product Form | Hot Rolled Plate / Sheet / Coil |
| Thickness Range | 3.0 mm – 120 mm |
| Width Range | 1000 / 1219 / 1500 / 1800 / 2000 / 2500 mm |
| Length | 2000mm – 12000mm (or Custom Cut) |
| Surface Finish | No.1, 1D, Black Surface |
| Standard | ASTM A240, ASME SA240, EN 10088-2 |
| Edge Type | Mill Edge or Slit Edge |
Comprehensive Testing: Material Test Certificates (MTC) compliant with EN 10204 3.1 standards are provided.
Third-Party Inspection (TPI) support (e.g., SGS, BV, TUV) is available, covering Ultrasonic Testing (UT) and grain size analysis.
Custom Processing (Value-Added Services):
Precision Cutting: Includes laser, waterjet, and plasma cutting, capable of processing materials into specific shapes or according to technical drawings.
Bending and Welding: Component pre-fabrication based on engineering drawings.
Packaging and Shipping
Packaging: Each sheet or coil is wrapped in moisture-proof paper with a plastic film lining and secured with steel strapping. The exterior is protected by wooden pallets or wooden crates to ensure safety during international transport.
Labeling: Each package is marked with the heat number, grade, dimensions, and standard specifications.
Delivery Time: Typically within 7–15 working days after receipt of the advance payment.
Shipping Method: Sea freight (FCL/LCL), air freight, or express delivery, depending on customer requirements.
