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Hot rolled stainless steel coil is a flat-rolled stainless steel product produced by high-temperature rolling, annealing and pickling, commonly supplied with a No.1 surface finish for industrial fabrication, tanks, pressure vessels, shipbuilding, construction, chemical equipment and heavy machinery. Compared with cold rolled stainless steel coil, hot rolled stainless steel coil is usually available in thicker gauges and is widely used where strength, weldability, corrosion resistance and cost efficiency are more important than decorative surface brightness.
Xi'an Dongmeng Group Co., Ltd. supplies ASTM A240 / ASME SA240 hot rolled stainless steel coil in 304, 304L, 316, 316L, 321, 310S, 430, 904L, 2205 and 2507 grades. Products are available with customized thickness, width, coil weight, slitting, cut-to-length, leveling, MTC 3.1 and export seaworthy packing. ASTM A240 covers stainless steel plate, sheet and strip for pressure vessels and general applications, including architectural, building, construction and general-use applications.
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Hot rolled stainless steel coil overview
Hot rolled stainless steel coil is manufactured by heating stainless steel slabs above the recrystallization temperature and rolling them into coil form. After hot rolling, the coil is usually annealed and pickled to remove scale and improve corrosion resistance. The typical surface is No.1 finish, which has a matte, industrial appearance and is suitable for further processing.
Public stainless steel coil references describe No.1 finish as a hot rolled, annealed and descaled surface with a dull, rough, silver-white appearance, mainly used in industrial applications where surface smoothness is not the priority.
Because hot rolled stainless steel coil is usually supplied in thicker sizes than cold rolled coil, it is commonly used for:
Pressure vessel fabrication
Storage tank manufacturing
Structural components
Chemical processing equipment
Shipbuilding and offshore components
Industrial machinery
Boiler and heat-resistant parts
Further cold rolling and re-rolling
Core Advantages
1. Suitable for Thick Gauge Applications
Hot rolled stainless steel coil is ideal for medium and thick gauge applications where strength, rigidity and fabrication performance are required.
2. No.1 Industrial Surface
The No.1 finish provides a practical surface for industrial use, welding, cutting, forming and further processing.
3. Wide Stainless Steel Grade Range
304 / 304L for general corrosion resistance, 316 / 316L for chloride environments, 321 / 347 for high-temperature service, 310S for heat resistance, and 2205 / 2507 for high-strength duplex applications.
4. Cost-effective for Heavy Fabrication
Compared with cold rolled stainless steel coil, hot rolled stainless steel coil is often more economical for thick material requirements.
5. Custom Processing Available
Slitting, leveling, cut-to-length, edge trimming, surface protection, inspection and export packing can be arranged according to customer requirements.
Specification Table
| Item | Available Range |
|---|---|
| Product | Hot Rolled Stainless Steel Coil / Stainless Steel HR Coil |
| Standard | ASTM A240 / ASME SA240 / EN 10088 / JIS G4304 |
| Grades | 201, 304, 304L, 316, 316L, 321, 347, 310S, 430, 904L, 2205, 2507 |
| Surface Finish | No.1, Pickled, Annealed, Mill Finish |
| Thickness | 2.0–14.0 mm, customized |
| Width | 1000 / 1219 / 1250 / 1500 / 1800 / 2000 mm, customized |
| Coil ID | 508 mm / 610 mm |
| Coil Weight | 3–25 tons, according to thickness and width |
| Edge | Mill Edge / Slit Edge |
| Processing | Slitting, cut-to-length, leveling, edge trimming, PVC protection |
| Certificate | MTC 3.1, EN 10204 3.1 / 3.2, third-party inspection |
| Packing | Waterproof paper, steel frame, wooden pallet, export seaworthy packing |
Available Grades and Applications
| Grade | Material Type | Main Features | Typical Applications |
|---|---|---|---|
| 201 | Austenitic | Cost-effective, moderate corrosion resistance | Decorative parts, light fabrication |
| 304 | Austenitic | General corrosion resistance, good weldability | Tanks, construction, equipment |
| 304L | Low carbon austenitic | Better welded corrosion resistance | Welded tanks, chemical equipment |
| 316 | Mo-bearing austenitic | Better chloride resistance | Marine, chemical, coastal projects |
| 316L | Low carbon Mo-bearing | Excellent welded performance | Chemical, food, pharmaceutical, marine |
| 321 | Ti-stabilized austenitic | High-temperature intergranular corrosion resistance | Heat-resistant equipment, exhaust systems |
| 347 | Nb-stabilized austenitic | High-temperature service | Refinery, heat exchangers, power plant |
| 310S | Heat-resistant austenitic | High Cr-Ni oxidation resistance | Furnace parts, thermal equipment |
| 430 | Ferritic | Magnetic, nickel-saving, cost-effective | Appliances, decorative panels |
| 904L | Super austenitic | Strong acid corrosion resistance | Chemical, acid processing |
| 2205 | Duplex | High strength, chloride SCC resistance | Offshore, desalination, chemical |
| 2507 | Super duplex | Higher strength and pitting resistance | Severe marine, offshore, chemical |
Chemical Composition
| Grade | C max | Cr | Ni | Mo | Other |
|---|---|---|---|---|---|
| 304 | 0.08 | 18.0–20.0 | 8.0–10.5 | - | - |
| 304L | 0.03 | 18.0–20.0 | 8.0–12.0 | - | Low carbon |
| 316 | 0.08 | 16.0–18.0 | 10.0–14.0 | 2.0–3.0 | - |
| 316L | 0.03 | 16.0–18.0 | 10.0–14.0 | 2.0–3.0 | Low carbon |
| 321 | 0.08 | 17.0–19.0 | 9.0–12.0 | - | Ti stabilized |
| 347 | 0.08 | 17.0–19.0 | 9.0–13.0 | - | Nb stabilized |
| 310S | 0.08 | 24.0–26.0 | 19.0–22.0 | - | Heat resistant |
| 430 | 0.12 | 16.0–18.0 | ≤0.75 | - | Ferritic |
| 2205 | 0.03 | 21.0–23.0 | 4.5–6.5 | 2.5–3.5 | N 0.08–0.20 |
| 2507 | 0.03 | 24.0–26.0 | 6.0–8.0 | 3.0–5.0 | N 0.24–0.32 |
Final chemical composition should be confirmed according to the applicable standard and material test certificate.
Mechanical Properties
| Grade | Tensile Strength min | Yield Strength min | Elongation min |
|---|---|---|---|
| 304 | 515 MPa | 205 MPa | 40% |
| 304L | 485 MPa | 170 MPa | 40% |
| 316 | 515 MPa | 205 MPa | 40% |
| 316L | 485 MPa | 170 MPa | 40% |
| 321 | 515 MPa | 205 MPa | 40% |
| 347 | 515 MPa | 205 MPa | 40% |
| 310S | 515 MPa | 205 MPa | 40% |
| 430 | 450 MPa typical | 205 MPa typical | 22% typical |
| 2205 | 620 MPa | 450 MPa | 25% |
| 2507 | 795 MPa | 550 MPa | 15% |
ASTM A240 requires the steel to conform to specified chemical composition and mechanical property requirements.
Physical Properties
| Property | Austenitic Stainless Steel Typical Value |
|---|---|
| Density | Approx. 7.9–8.0 g/cm³ |
| Elastic Modulus | Approx. 193 GPa |
| Thermal Conductivity | Approx. 14–16 W/m·K |
| Thermal Expansion | Approx. 16–17 × 10⁻⁶ /K |
| Melting Range | Approx. 1370–1450°C |
| Magnetic Property | Generally non-magnetic for austenitic grades; magnetic for ferritic and duplex grades |
Surface Finish: What Is No.1 Finish?
No.1 finish stainless steel coil is produced by hot rolling, annealing and pickling. It has a matte, non-reflective industrial surface and is commonly used for applications where surface appearance is less important than material strength, corrosion resistance and processing performance.
No.1 Finish Advantages
Suitable for welding and fabrication
Practical for industrial equipment
Lower cost than polished finishes
Suitable for thick gauge stainless steel
Can be further processed into plate, sheet or parts
Suitable for tanks, vessels, structural components and machinery
No.1 Finish Common Applications
Chemical tanks
Pressure vessels
Industrial platforms
Shipbuilding parts
Heavy equipment panels
Structural fabrication
Heat-resistant equipment
Hot Rolled vs Cold Rolled Stainless Steel Coil
| Item | Hot Rolled Stainless Steel Coil | Cold Rolled Stainless Steel Coil |
|---|---|---|
| Rolling Temperature | High temperature rolling | Further rolling at room temperature |
| Surface | No.1, pickled, industrial surface | 2B, BA, No.4, HL, brighter surface |
| Thickness | Usually thicker | Usually thinner and more precise |
| Dimensional Precision | General industrial tolerance | Better thickness and surface precision |
| Surface Appearance | Matte, rougher | Smooth and brighter |
| Cost | More economical for thick material | Higher processing cost |
| Applications | Tanks, vessels, construction, heavy fabrication | Appliances, decoration, precision parts |
Processing Performance Analysis
Hot rolled stainless steel coil is suitable for a wide range of industrial processing operations.
Slitting
Hot rolled coils can be slit into narrower widths for downstream fabrication, tube making, stamping and structural components.
Cut-to-Length
Coils can be leveled and cut into stainless steel sheets or plates according to project drawings.
Welding
Grades such as 304L and 316L offer good weldability for tanks, vessels and welded structures. For high-temperature or severe corrosion applications, grade selection and welding procedure should be confirmed.
Forming and Bending
Hot rolled stainless steel coil has good formability for heavy industrial fabrication. Bending radius should be confirmed based on grade, thickness and final application.
Surface Treatment
No.1 surface can be pickled, blasted, polished or further processed according to project requirements.
Welding Performance Analysis
Hot rolled stainless steel coil is widely used for welded fabrication such as tanks, vessels, pressure components, frames and structural parts.
Welding recommendations:
Use 304L / 316L for welded applications requiring better resistance to intergranular corrosion.
Select matching filler material according to grade.
Control heat input and interpass temperature.
Remove oxide scale and surface contamination before welding.
Pickling and passivation are recommended after welding where corrosion resistance is required.
For duplex grades such as 2205 / 2507, welding procedure must control phase balance and heat input.
Corrosion Resistance Analysis
The corrosion resistance of hot rolled stainless steel coil depends on the grade, surface condition and working environment.
| Environment | Recommended Grade |
|---|---|
| General indoor and industrial environment | 304 / 304L |
| Food and beverage equipment | 304 / 316L |
| Chloride-containing water | 316L |
| Marine and coastal environment | 316L / 2205 / 2507 |
| High-temperature oxidation | 310S / 321 / 347 |
| Chemical processing | 316L / 904L / 2205 |
| Severe chloride corrosion | 2205 / 2507 |
| Decorative cost-sensitive applications | 430 |
Applications
Pressure Vessels and Tanks
Hot rolled stainless steel coil is widely used for storage tanks, pressure vessel shells, industrial containers and welded equipment components.
Chemical Processing
304L, 316L, 904L and duplex stainless steel hot rolled coils are used in chemical plant equipment, acid-resistant vessels and process systems.
Shipbuilding and Marine Engineering
316L, 2205 and 2507 stainless steel coils can be selected for marine structures, offshore platforms and coastal industrial projects.
Construction and Structural Fabrication
Used for building structures, bridge components, industrial platforms, support frames and heavy-duty stainless steel fabrication.
Power Plant and Heat-resistant Equipment
321, 347 and 310S hot rolled stainless steel coils are suitable for thermal equipment, furnace parts, heat treatment systems and high-temperature components.
Tube and Pipe Manufacturing
Hot rolled stainless steel coil can be further processed into welded stainless steel pipe and tube for industrial piping and structural applications.
Machinery and Equipment
Used for machine covers, frames, equipment shells, wear-resistant panels and heavy industrial parts.
Hot Rolled Stainless Steel Coil vs Hot Rolled Stainless Steel Plate
| Item | Hot Rolled Stainless Steel Coil | Hot Rolled Stainless Steel Plate |
|---|---|---|
| Form | Coil form | Flat plate |
| Processing | Can be slit and cut to length | Direct fabrication |
| Supply Flexibility | Flexible width and sheet length after processing | Fixed plate size |
| Typical Thickness | Medium thickness | Medium to thick plate |
| Logistics | Compact coil packing | Plate stacking |
| Best For | Continuous processing, slitting, sheet production | Direct structural fabrication and equipment |
Hot Rolled Stainless Steel Coil Buying Guide
When requesting a quotation, buyers should confirm:
Material grade: 304, 316L, 321, 310S, 2205, etc.
Standard: ASTM A240, ASME SA240, EN 10088, JIS G4304
Thickness and tolerance
Width and coil ID
Coil weight
Surface finish: No.1 / pickled / annealed
Edge: mill edge or slit edge
Quantity
MTC 3.1 or third-party inspection requirement
Destination port and packing requirements
Inspection & Quality Assurance
Xi'an Dongmeng Group Co., Ltd. provides strict quality control for hot rolled stainless steel coil before shipment.
| Inspection Item | Description |
|---|---|
| Raw Material Verification | Grade, heat number, batch number and standard verification |
| Chemical Composition | Cr, Ni, Mo, C, Mn, Si, P, S and other alloy elements |
| Mechanical Test | Tensile strength, yield strength, elongation and hardness |
| Thickness Inspection | Coil thickness measured across width and length |
| Width Inspection | Width, edge condition and tolerance control |
| Surface Inspection | No.1 surface, pickling quality, scale, scratches, dents and stains |
| Flatness Check | After leveling and cut-to-length processing |
| Coil Weight Check | Actual coil weight and packing weight |
| PMI Test | Grade confirmation available before shipment |
| MTC | EN 10204 3.1 / 3.2 available |
| Third-party Inspection | SGS, BV, TUV or customer-appointed inspection accepted |
Packaging & Shipping
Waterproof paper wrapping
Protective metal sheet covering
Steel strip reinforcement
Wooden pallet or metal pallet support
Eye-to-wall or eye-to-sky packing
Edge protection for slit coils
Clear label with grade, size, heat number and coil number
Export seaworthy packing
Container loading photos available
Shipping by sea, railway or air freight according to order volume
Why Choose Xi'an Dongmeng Group Co., Ltd.
Wide Grade Range
304, 304L, 316, 316L, 321, 347, 310S, 430, 904L, 2205 and 2507 stainless steel coils can be supplied.
Hot Rolled and Cold Rolled Supply Capability
We can provide hot rolled No.1 coil and cold rolled 2B / BA / No.4 / HL coil according to project requirements.
Customized Processing
Slitting, leveling, cut-to-length, edge trimming and surface protection are available.
Strict Inspection
Thickness, width, surface, chemical composition, mechanical properties and packing are checked before shipment.
Export Documentation Support
MTC 3.1, packing list, commercial invoice, certificate of origin and third-party inspection can be arranged.
Global Delivery
Export seaworthy packing and container loading support for international distributors, manufacturers and project contractors.
FAQ
1. What is hot rolled stainless steel coil?
Hot rolled stainless steel coil is stainless steel coil produced by high-temperature rolling, annealing and pickling. It is commonly supplied with No.1 surface finish for industrial fabrication.
2. What is No.1 finish stainless steel coil?
No.1 finish is a hot rolled, annealed and descaled stainless steel surface. It has a matte industrial appearance and is widely used for tanks, vessels, structures and machinery.
3. What grades are available?
Common grades include 304, 304L, 316, 316L, 321, 347, 310S, 430, 904L, 2205 and 2507.
4. What is the difference between hot rolled and cold rolled stainless steel coil?
Hot rolled coil is processed at high temperature and usually has a No.1 surface with thicker gauges. Cold rolled coil is further processed at room temperature and has smoother surfaces such as 2B and BA.
5. Can you slit hot rolled stainless steel coil?
Yes. Slitting service is available according to required width and tolerance.
6. Can you cut hot rolled coil into sheets?
Yes. Leveling and cut-to-length service can be provided according to customer sheet size requirements.
7. Can you provide MTC 3.1?
Yes. EN 10204 3.1 material test certificate can be supplied with shipment.
8. Which grade should I choose for marine applications?
316L is suitable for many chloride-containing environments, while duplex 2205 or 2507 is recommended for more severe marine or offshore applications.
9. Which grade is suitable for high-temperature use?
321, 347 and 310S are commonly used for high-temperature and heat-resistant applications.
10. What information should I provide for quotation?
Please provide grade, standard, thickness, width, coil weight, surface finish, edge type, quantity, destination port and certificate requirements.
Looking for hot rolled stainless steel coil price, datasheet or MTC sample? Contact us today for a fast quotation.
Our address
Room 4107, Runfeng Building, Sanqiao New Street, Weiyang District, Xi'an City, Shaanxi Province
Phone Number
+86 15769214734
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