We offer stainless steel plate & sheet in a variety of grades for plate and sheet in China, typical specifications for 304/304L Plate and 316/316L Stainless Steel Plate are ASTM A-240, ASME SA -240 and ASTM A666, stainless steel plate & sheet have good formability and toughness, corrosion resistance and high strength properties, stainless steel does not stain, corrode, or rust easily, but it is easy to clean and sanitize, there are various surfaces including mill finishes and polished finishes to opt, stainless steel sheet & plate provide a perfect solution to meet different applications.
Depending on the production method, plate & sheet are classified as cold rolled and hot rolled type, classified as feature and application, there are nitric acid resistant plate and sheet, sulphuric acid resistant plate and sheet, pitting resistant plate and sheet, stress corrosion resistant plate and sheet and high strength plate and sheet.
Stainless Steel Plate & Sheet Specifications
| Grades | 304/304L, 316/316L, 409, 420, 430, 439, 441 |
|---|---|
| EN Steel No. | 1.4301/1.4307, 1.4401/1.4404, 1.4512, 1.4021, 1.4016, 1.4510, 1.4509 |
| Production | Cold Rolled, Hot Rolled |
| Standard | ASTM A240, ASTM A480, EN 10088-2 |
| Thickness | Min: 0.4mm, Max: 60.0mm |
| Width | 1000mm,1250mm,1500mm,2000mm, Min Width: 8 Mm Other Sizes On Request, Width Tolerance: 0 – 0.1 Mm |
| Finish | 1D, 2B, BA, No4, No6, No7, HL, No8, Both Sides Polished Available |
| Package | Spool Wooden Pallet |
| Application | Aerospace, food and beverage industry, pressure containers, architectural designs and trim, cryogenic applications, and chemical processing equipment. |
Stainless Steel Plate & Sheet Sizes
Standard Width
1000 mm, 1219 mm, 1500 mm, 2000 mm, non-standard width is offered and cut in narrow width, width from 6 mm to 3048 mm, standard cold rolled plate size: 1000x2000mm, 1219x2438mm and 1500x3000mm, standard hot rolled plate size: 1500x6000mm, 1800x6000mm, 2000x6000mm
Thickness
Metric sizes range from 0.3 mm to 150 mm, there are varieties of thickness, thin thick sheet (0.2 mm – 4 mm), thick thickness plate（4 mm – 20 mm）, medium thickness plate (20 mm – 60 mm), and heavy thickness plate (60 mm – 115 mm).
Fractional size: 3/16 in, 1/8 in, 1/4 in, 3/8 in, 1/2 in, 3/4 in, 7/8 in, 1 in, 1-1/2 in.
Gauge
10 ga, 11 ga, 12 ga, 14 ga, 16 ga, 18 ga, 20 ga, 22 ga, 24 ga, 26 ga, the higher the gauge, the thinner the material.
Stainless Steel Plate Weight Calculation
Plate weight Formula: L × W × T × density.
For example, with a plate dimension of 1500 mm width x 1.5 mm height x 3000 mm length, the volume is 0.00675 m3, given a density of 7930 kg/m3, so the weight of the plate is 0.00675m3 x 7930kg/m3 = 53.5 kg.
Stainless Steel Grades for Plates and Sheets
There are varieties of stainless steel grades, these grades have excellent properties to suit applications, they are known as high strength and superior corrosion resistance material. 304 and 316L are the most used grades, common grades are listed for reference, and selecting which type of stainless steel grade depends on a specific application.
304 Stainless Steel Plate
304 Stainless Steel Plate is one of the most versatile stainless grade, 304 stainless plate offers good corrosion resistance to many chemical corrodents as well as industrial atmospheres and marine environments. 304 Stainless Steel Plate has excellent formability and can be readily welded by all common methods.
304L Stainless Steel Plate
304L Stainless Steel Sheet is an extremely versatile stainless steel material with a chemical composition that includes a minimum of 18 percent chromium and 8 percent nickel, ensuring excellent corrosion resistance and formability. The material has a maximum carbon content of only 0.03 percent, which helps to reduce the tendency of intergranular corrosion during welding.
304L Stainless Steel Sheet is particularly suitable for applications where welding is required due to its good weldability and workability. It can be processed through a variety of fusion and resistance welding processes, and can still maintain excellent corrosion resistance after welding. In addition, it also has a high degree of heat resistance and can maintain stable performance in high-temperature environments.
In the field of application, 304L stainless steel plate is widely used in manufacturing food processing equipment, medical equipment, kitchen utensils, building decoration materials, and automotive and aerospace structural components. Its non-toxic, corrosion-resistant and easy-to-clean characteristics ensure its reliability and safety in these fields.
316 Stainless Steel Sheet & Plate
Like 304 SS, grade 316 stainless steel also has high nickel and chromium content, but adding molybdenum further improves the corrosion resistance, especially against chlorides or chlorinated substances. These properties make grade 316 stainless steel sheets and plates ideal for medical applications, marine environments, refining or chemical processing, and other highly corrosive environments.
316L Stainless Steel Sheet & Plate
316L is low carbon 316, carbon content does not exceed 0.03%, and the addition of Mo, 316L stainless steel plate has excellent corrosion resistance, especially pitting resistance; high-temperature strength is also very good; excellent work hardening (weakly magnetic after processing); solid solution state non-magnetic. 316L stainless steel plate is after 304 stainless steel plate, the second widely used steel, has a stronger resistance to high temperature, corrosion, and intergranular corrosion resistance.
410 Stainless Steel Sheet
410 stainless steel is a kind of martensitic stainless steel, 410 plate has good corrosion resistance, high strength, and excellent machinability, and is widely used in the production of general knife blades, mechanical parts, and Class 1 cutlery (e.g., spoons, forks, knives, etc.). This stainless steel sheet contains 11.5%-13.5% chromium and a small amount of nickel, so it has excellent corrosion and heat resistance and can resist a wide range of chemicals, and be used for long periods in high-temperature environments. Despite the superior performance of 410 stainless steel plate, its thermal conductivity is low, processing is difficult, and the price is relatively high. Therefore, the choice needs to be considered according to the actual demand and cost.
430 Stainless Steel Sheet
430 stainless steel plate is ferritic stainless steel, 430 stainless steel contains chromium 16.00-18.00%, basically, no nickel, 430 stainless steel plate has all the characteristics of 430 stainless steel, is the good corrosion resistance and general-purpose steel, thermal conductivity is better than austenitic, the coefficient of thermal expansion is smaller than austenitic, heat fatigue, add stabilization element titanium, weld parts of the mechanical properties of good, mainly used for architectural decorative use, fuel burner parts, household appliances, home appliance parts.
2205 Duplex Plate
2205 stainless steel sheet, as a duplex stainless steel with both austenitic and ferritic structure, shows excellent performance. Recommended processing temperatures range from 1020 to 1150°C to ensure that the workpiece is heated uniformly and to avoid cracks caused by temperature gradients. Due to the high hardness of the 2205 stainless steel plate, it is necessary to use a high-power, rigid machine to process. 2205 stainless steel plate has good corrosion resistance and is widely used in the chemical industry, pharmaceuticals, marine engineering and other fields.
300 Series
Plate & Sheet Surface Finishes
Stainless steel plate & sheet have various finishing conditions to suit the application, there are main surface finishes below, which can be obtained by cold rolling or hot rolling producing method. Standard stainless steel sheets and plates are solid and flat with no surface texture.
- NO.1 – Hot rolled, annealed, and descaled
- 2D – Cold rolled, dull finish
- 2B – The general-purpose, cold rolled, smooth finish
- BA – Bright, cold rolled, highly reflective finish
- NO.3 – Intermediate polished finish
- NO.4 (BRUSHED)– General-purpose ground polished finish produced from 2B finish
- NO.8 (MIRRORED) – Highly reflective ‘mirror’ finish produced from 2B finish
Special surfaces have sandblasted; snowflake sand, colored plates, titanium-plated plates, etched plates, oil-throwing hairline plates (HL, NO.4), sandblasted plate, and embossed plates.
Stainless Steel Plate & Sheet Dimension Tolerance
The dimensional tolerances are grouped by producing method cold rolled or hot rolled, with or without coiling, narrow width below 610 mm or wide width over 610 mm, here main standard tolerances are specified as ASTM A480 specification.
Cold-Rolled, Narrow, Coil-Processed Product As Coils And Cut Lengths
| Thickness (Mm) | Tolerances For The Thickness And Widths Given , +/-(Mm) | ||
|---|---|---|---|
| Width ≤ 152 | 152 < Width ≤ 305 | 305 < Width ≤ 610 | |
| 0.05 – 0.13 Excl | 10% | 10% | 10% |
| 0.13 – 0.25 Incl | 0.015 | 0.020 | 0.025 |
| Over 0.25 – 0.3 Incl | 0.025 | 0.025 | 0.025 |
| Over 0.3 – 0.4 Incl | 0.025 | 0.04 | 0.04 |
| Over 0.4 – 0.5 Incl | 0.025 | 0.04 | 0.04 |
| Over 0.5 – 0.74 Incl | 0.04 | 0.04 | 0.05 |
| Over 0.74 – 0.89 Incl | 0.04 | 0.05 | 0.05 |
| Over 0.89 – 1.27 Incl | 0.06 | 0.07 | 0.07 |
| Over 1.27 – 1.75 Incl | 0.07 | 0.07 | 0.07 |
| Over 1.75 – 2.54 Incl | 0.07 | 0.07 | 0.10 |
| Over 2.54 – 2.98 Incl | 0.010 | 0.10 | 0.12 |
| Over 2.98 – 4.09 Incl | 0.12 | 0.12 | 0.12 |
| Over 4.09 – 4.76 Incl | 0.12 | 0.12 | 0.15 |
Thickness Of Hot-Rolled, Wide, Coil-Processed Product As Coil And Cut Lengths
| Specified Thickness*, In. [Mm] | Permitted Variation, In. [Mm], Over And Under, Except As Indicated Otherwise, For Specified Width (W) In. [Mm] | |
|---|---|---|
| W ≤ 60 [1525] | W > 60 [1525] | |
| 0.072 [1.83] | 0.006 [0.15] | 0.009 [0.22] |
| >0.072 [1.83] To 0.083 [2.11] | 0.007 [0.18] | 0.010 [0.25] |
| >0.083 [2.11] To 0.098 [2.49] | 0.008 [0.20] | 0.011 [0.27] |
| >0.098[2.49] To 0.114 [2.90] | 0.009 [0.23] | 0.012 [0.30] |
| >0.114 [2.90] To 0.130 [3.30] | 0.011 [0.27] | 0.013 [0.33] |
| >0.130 [3.30] To 0.145 [3.68] | 0.012 [0.30] | 0.013 [0.33] |
| >0.145 [3.68] To 0.1875 [4.76] | 0.013 [0.33] | 0.014 [0.35] |
| >0.1875 [4.76] To 0.250 [6.35] | -0.010 [0.25], +0.020 [0.50] | -0.010 [0.25], +0.020 [0.50] |
| >0.250 [6.35] To 0.3125 [7.94] | -0.010 [0.25], +0.022 [0.55] | -0.010 [0.25], +0.022 [0.55] |
| >0.3125 [7.94] | -0.010 [0.25], +0.030 [0.75] | -0.010 [0.25], +0.030 [0.75] |
Stainless Steel Plate & Sheet Standards
ASTM A240 Stainless Steel Plate & Sheet
Standard Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications
This specification covers chromium, chromium-nickel, and chromium-manganese-nickel stainless steel plate, sheet, and strip for pressure vessels and general applications. The steel shall conform to the requirements as to the chemical composition specified. The material shall conform to the mechanical properties specified.
ASTM A480 Stainless Steel Plate & Sheet
Standard Specification for General Requirements for Flat-Rolled Stainless and Heat-Resisting Steel Plate, Sheet, and Strip
This specification covers general requirements for flat-rolled stainless and heat-resisting steel plate, sheet, and strip. The steel shall be made by one of the following processes: electric arc, electric induction, or other suitable processes. Heat and product analyses shall conform to the chemical requirements for each of the specific elements. The material shall undergo mechanical tests such as tension test, hardness test, and bend test. Special tests like intergranular corrosion test, permeability test, Charpy impact testing and tests for detrimental intermetallic phases in wrought duplex stainless steels shall also be performed when required.
ASTM A666 Stainless Steel Plate & Sheet
Standard Specification for Annealed or Cold-Worked Austenitic Stainless Steel Sheet, Strip, Plate, and Flat Bar
This specification covers austenitic stainless steels in the annealed and normally required cold-worked conditions. They shall be formed in different shapes such as sheets, strips, plates and flat bars. The steels shall adhere to specified chemical composition requirements. Mechanical properties such as yield strength, tensile strength, elongation, hardness, and bending shall be determined. The specimens shall be subjected to tension test, free-bend test, and controlled-bend or V-block test.
EN 10088-2 Steel Plate, Sheet, Strip
Stainless steels – Part 2: Technical delivery conditions for sheet/plate and strip of corrosion-resisting steels for general purposes
This European Standard specifies the technical delivery conditions for hot or cold rolled sheet/plate and strip of standard grades and special grades of corrosion-resisting stainless steels for general purposes.
General purposes include the use of stainless steel in contact with foodstuffs.
The general technical delivery conditions specified in EN 10021 apply in addition to the specifications of this European Standard unless otherwise specified in this European Standard.
JIS G4305 Cold Rolled Stainless Steel Plate, Sheet, Strip
This Standard specifies requirements for the cold-rolled stainless steel plates and sheets (hereafter referred to as plates) and cold-rolled stainless steel strip (hereafter referred to as strip).
Difference Between Plate And Sheet
Stainless sheet and plate look similar in shape, strictly speaking, they are different in thickness and durability, sheets are thinner, usually 6mm or less, and used for lightweight residential applications, while plates provide more tensile strength and are used in heavy-duty applications.
Stainless Steel Sheet and Strip from China
| Item | Definition | Relation To Product Scope |
|---|---|---|
| Sheet | Under 3/16 Inches (4.75 Mm) In Thickness And 24 Inches (610 Mm) And Over In Width. | Sheet Is Within The Product Scope If It Is Of A Thickness Of At Least 0.3048 Mm. |
| Strip | Under 3/16 Inches (4.75 Mm) In Thickness And Is Under 24 Inches (610 Mm) In Width. | Strip Is Within The Product Scope If It Is Of A Thickness Of At Least 0.3048 Mm (0.012 Inches) And A Width Of A Least 9.5 Mm (0.374 Inches). |
| Foil | Maximum Width Of .005 Inches. | Foil Is Outside The Product Scope. |
| Plate | More Than Ten Inches (254 Mm) Wide With A Thickness Ranging From 3/16 Of An Inch (4.75 Mm) And Over. | Plate Is Outside Of The Product Scope. |
Cold Rolled & Hot Rolled Differences
There are some differences between hot-rolled steel and cold rolled in the metal industry, the main difference is the manufacturing process of steel, Hot-rolled steel is rolled at a high temperature, which makes steel easy to form and to fabricate hot rolled type steel is easier to get target sizes and dimensions after processing, Cold rolled steel is rolled on the basis of hot rolled steel, then picking and remove scale on the surface, cooling at room temperature, they have benefits respectively。
Hot Rolled Stainless Steel Plate
- Uniform grain size, avoiding structure defect
- Improve properties
- Shaped and formed easily
- Non-metallic inclusions inside steel remain
- Stress exists
- Not easy to control width and thickness precisely
- Scaled surface
- Cheaper than cold rolled steel
Cold Rolled Stainless Steel Plate
- Clear and smooth surface
- More finishes option
- Closer tolerances
- Stronger hardness
- Limited in a few shapes