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  • 316 Stainless Steel Plate

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316 Stainless Steel Plate
316 stainless steel is an austenitic chromium-nickel stainless steel that incorporates 2-3% Molybdenum. This key addition significantly enhances its resistance to pitting and crevice corrosion in chloride-ion environments compared to 304 stainless steel. It offers excellent strength, toughness, and corrosion resistance, making it the go-to material for more aggressive industrial and marine applications.
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◉ PRODUCT SPECIFICATION


1. Standard Designations

  • UNS: S31600

  • ASTM: A240/A240M

  • EURONORM: 1.4401 / 1.4436

  • JIS: SUS 316

  • GB/T: 06Cr17Ni12Mo2


2. Chemical Composition (% by weight)


Element

Carbon (C)

Silicon (Si)

Manganese (Mn)

Phosphorus (P)

Sulfur (S)

Chromium (Cr)

Nickel (Ni)

Molybdenum (Mo)

Min.

-

-

-

-

-

16.00

10.00

2.00

Max.

0.07

0.75

2.00

0.045

0.030

18.00

14.00

3.00


3. Mechanical Properties (at Room Temperature, for Annealed Condition)


Property

Yield Strength (0.2% Offset)

Tensile Strength

Elongation (in 2")

Hardness (Brinell)

Hardness (Rockwell B)

Value

≥ 205 MPa (30 ksi)

≥ 515 MPa (75 ksi)

≥ 40%

≤ 217 HBW

≤ 95 HRB


4. Physical Properties (Typical)


Property

Value

Density

8.00 g/cm³ (0.289 lb/in³)

Melting Range

1375 - 1400 °C (2500 - 2550 °F)

Modulus of Elasticity

193 GPa (28 x 10⁶ psi)

Thermal Conductivity (100°C)

16.3 W/m·K

Coefficient of Thermal Expansion (20-100°C)

16.0 x 10⁻⁶ /K


5. Corrosion Resistance


  • Chloride Resistance: The key advantage. The molybdenum content provides superior resistance to pitting and crevice corrosion in chloride-bearing environments (e.g., seawater, de-icing salts).

  • General Corrosion: Excellent resistance to a wide range of chemicals, including many sulfuric acid solutions, and other aggressive process streams.

  • Intergranular Corrosion: Similar to 304, it can be sensitized. For welded applications, the low-carbon version 316L is recommended.

  • Pitting Resistance Equivalent Number (PREN): ~25-26. This is significantly higher than the ~19 for 304/304L, quantifying its improved pitting resistance.


6. Available Product Range (Plates)


Parameter

Standard Range (May vary by supplier)

Thickness

0.5 mm (0.02") to 100 mm (4") and above

Width

1000 mm (39"), 1219 mm (48"), 1500 mm (59"), 2000 mm (79"), etc.

Length

2000 mm (79"), 2438 mm (96"), 3000 mm (118"), 6000 mm (236"), etc.

Common Surface Finishes

No. 1: Hot-rolled, annealed & pickled (dull, matte)
2B: Cold-rolled, annealed & pickled, then skin-pass rolled (smooth, slightly reflective) - Most CommonBA: Bright Annealed (smooth, highly reflective)
No. 4: Brushed (directional satin)
No. 8: Mirror (highly reflective polish)


7. Typical Applications


  • Marine & Coastal: Boat fittings, underwater components, structural parts.

  • Chemical & Petrochemical: Process equipment, pipelines, pressure vessels handling corrosive chemicals.

  • Pharmaceutical: High-purity processing vessels and piping.

  • Pulp & Paper Industry: Bleaching equipment and process tanks.

  • Architectural: High-end facades and structures in harsh coastal or urban environments.

◉ 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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