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  • Hot Rolled Stainless Steel plate

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Hot Rolled Stainless Steel plate
Hot Rolled Stainless Steel Plate is produced by rolling steel slabs at high temperatures, followed by annealing and pickling to remove mill scale, resulting in a characteristic "No.1" surface finish. This process offers a wide range of sizes, particularly in thicker gauges, with excellent strength and toughness. While the surface finish and dimensional tolerances are less precise than cold-rolled plate, it is a cost-effective solution for applications where aesthetics are not the primary concern. It is widely used in structural components, chemical processing equipment, and pressure vessels.
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◉ PRODUCT SPECIFICATION


1. Applicable Standards


  • ASTM A240/A240M: Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and General Applications

  • ASTM A480/A480M: General Requirements for Flat-Rolled Stainless and Heat-Resisting Steel Plate, Sheet, and Strip

  • EN 10088-2: Stainless steels - Part 2: Technical delivery conditions for sheet/plate and strip of corrosion resisting steels for general purposes

  • JIS G 4304: Hot-rolled stainless steel plate, sheet and strip

  • GB/T 4237 (Chinese Standard): Stainless steel hot rolled steel sheets and strips


2. Common Grades & Chemical Composition (% by weight, Typical)


Grade / Standard

C ≤

Si ≤

Mn ≤

P ≤

S ≤

Cr

Ni

Others

304 / UNS S30400

0.07

0.75

2.00

0.045

0.030

18.0-20.0

8.0-10.5

-

304L / UNS S30403

0.030

0.75

2.00

0.045

0.030

18.0-20.0

8.0-12.0

-

316 / UNS S31600

0.07

0.75

2.00

0.045

0.030

16.0-18.0

10.0-14.0

Mo: 2.0-3.0

316L / UNS S31603

0.030

0.75

2.00

0.045

0.030

16.0-18.0

10.0-14.0

Mo: 2.0-3.0

321 / UNS S32100

0.08

0.75

2.00

0.045

0.030

17.0-19.0

9.0-12.0

Ti: ≥5×C%

430 / UNS S43000

0.12

0.75

1.00

0.040

0.030

16.0-18.0

-

-

2205 / UNS S32205

0.030

1.00

2.00

0.030

0.020

22.0-23.0

4.5-6.5

Mo:3.0-3.5, N:0.14-0.20


3. Mechanical Properties (at Room Temperature, Typical)


Grade

Yield Strength (σ0.2) ≥ (MPa)

Tensile Strength (σb) ≥ (MPa)

Elongation (δ) ≥ (%)

Hardness (HBW) ≤

304

205

515

40

201

304L

170

485

40

201

316

205

515

40

217

316L

170

485

40

217

321

205

515

40

217

430

205

450

22

183

2205

450

620

25

293


4. Standard Product Range (Plates)


Parameter

Standard Range

Thickness

3.0 mm to 100 mm+ (Commonly categorized as medium & heavy plate)

Width

1000 mm, 1219 mm, 1500 mm, 1800 mm, 2000 mm, 2200 mm, etc.

Length

2000 mm, 2438 mm, 3000 mm, 6000 mm, Custom Cut Lengths, etc.

Surface Finish

No.1: Annealed and pickled surface after hot-rolling, presenting a dull, silver-gray, matte appearance.


5. Typical Applications


  • Structural components in construction and bridge building

  • Chemical containers, storage tanks, and reactors

  • Pressure piping and equipment in the oil & gas industry

  • Heat exchangers and boiler parts

  • Shipbuilding and automotive chassis (specific grades)

  • Industrial furnace parts and heat-resisting equipment (e.g., Grade 321)

  • Internal structural parts for home appliances and catering equipment

◉ Surfcae selection

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SURFACE CHARACTERISTIC SUMMARY OF MANUFACTURING METHOD APPLICATION
NO.1 Silvery white Hot rolled to specified thickness Do not need to have a glossy surface use
lackluster
NO.2D Silvery white After cold rolling, heat treatment and pickling are carried out General material, deep material
NO.2B Gloss is stronger than No.2D After No.2D treatment, the final light cold rolling is carried out through the polishing roller The general material
BA As bright as a sixpence No standard, but usually a bright annealed surface with high reflectivity. Building materials, kitchen utensils
NO.3 Rough lapping Grind with 100~200# (unit) strop tape Building materials, kitchen utensils
NO.4 Intermediate grinding Polished surface obtained by grinding with 150~180# strop abrasive tape Building materials, kitchen utensils
NO.240 Fine lapping Grinding with 240# strop abrasive tape kitchenware
NO.320 Very fine grinding Grinding was carried out with 320# strop abrasive tape kitchenware
NO.400 The luster is close to BA Use 400# polishing wheel to grind General timber, building timber, kitchen appliances
HL Hairline grinding Suitable particle material for hair stripe grinding (150~240#) with many grains Building, construction material
NO.7 It's close to mirror grinding Use a 600# rotary polishing wheel to grind For art or decoration
NO.8 Mirror ultrafinish The mirror is ground with a polishing wheel Reflector, for decoration

◉ PRODUCTION AND WAREHOUSING

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