Tôle épaisse d'acier inoxydable

Tôle épaisse d'acier inoxydable

Thick stainless steel sheets cover a wide range of specifications from medium plates around 3 mm to extra heavy plates above 100 mm épaisseur. These materials are widely used in heavy industrial and structural applications where strength, résistance à la corrosion, and durability are required.

Grades courants tels que 304, 316, and duplex stainless steels are available in various thicknesses and dimensions, allowing stainless steel plates to meet diverse engineering and fabrication requirements.

Description

Thick stainless steel sheet refers to medium and heavy gauge stainless steel plates used in structural engineering, équipement industriel, vaisseaux de pression, construction navale, fabrication de machines, and heavy fabrication industries. Par rapport aux fines tôles d'acier inoxydable, thick plates provide higher strength, better load-bearing capacity, and improved structural stability.

The definition of “thick” stainless steel sheet varies by industry, but materials above approximately 3 mm thickness are generally classified as medium or thick stainless steel plates.

1. Common Thickness Range of Stainless Steel Sheets and Plates

Catégorie	Plage d'épaisseur	Typical Application
Thin Stainless Steel Sheet	0.3 mm – 3 mm	Decoration, équipement de cuisine, fabrication de précision
Medium Thickness Plate	3 mm – 20 mm	Fabrication structurelle, réservoirs, machinerie
Thick Stainless Steel Plate	20 mm – 60 mm	Heavy industry, vaisseaux de pression
Extra Thick Stainless Steel Plate	60 mm et plus	En mer, construction navale, heavy engineering

2. Common Standard Thickness Specifications

The following thicknesses are commonly available in international stainless steel markets:

Thin to Medium Thickness

1 mm
1.5 mm
2 mm
3 mm
4 mm
5 mm
6 mm

Medium to Heavy Thickness

8 mm
10 mm
12 mm
14 mm
16 mm
20 mm
25 mm

Heavy Plate Thickness

30 mm
40 mm
50 mm
60 mm
80 mm
100 mm et plus

3. Spécifications communes de largeur et de longueur

Thick stainless steel sheets are typically supplied in standard plate dimensions.

Largeur	Longueur commune
1000 mm	2000 mm
1219 mm	2438 mm
1500 mm	3000 mm
1800 mm	6000 mm
2000 mm	6000 mm

Custom cutting and processing sizes are also common in industrial applications.

4. Hot Rolled vs Cold Rolled Thickness Range

Acier inoxydable laminé à froid

Usually produced from 0.3 mm à 6 mm
Better surface finish and dimensional accuracy
Common surface finishes: 2B, BA, brossé

Acier inoxydable laminé à chaud

Commonly produced above 3 mm épaisseur
Suitable for heavy plates and structural applications
Typical surface finish: Finition n°1

Thicker stainless steel plates are generally manufactured using hot rolling processes.

5. Common Stainless Steel Grades for Thick Plates

Grade	Principales caractéristiques
304	Résistance générale à la corrosion
304L	Meilleure soudabilité
316	Improved chloride resistance
316L	Faible teneur en carbone, chemical applications
310S	Résistance aux hautes températures
2205 Duplex	Haute résistance et résistance à la corrosion