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EU 1.4301 Prime Cold Rolled Stainless Steel For Shipbuilding

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DESCRIPTION This is the basic austenitic stainless steel 18/8, the most widely used. It exhibits good properties regarding corrosion resistance, forming and weldability.

CHEMICAL  COMPOSITION C Si Mn P S Cr Ni 列1 列2
≤0.070 ≤0.75 ≤2.00 ≤0.040 ≤0.015 17.50-19.00 8.00-10.00


APPLICATIONS Tableware /Household appliances /Industry /Construction /decoration

MECHANICAL PROPERTIES
AFTER  COLD
ROLLING  AND
FINAL ANNEALING
Rp0.2 > 230 N/mm2
Rm 540 - 750 N/mm2
Elongation > 45%
Hardness < 200 HB

PHYSICAL PROPERTIES
20℃ 100℃ 200℃ 300℃ 400℃ 500℃

Modulus of elasticity (GPa) 200 194 186 179 172 165

Mean coefficient of linear expansion between 20℃ (10-6 x K-1) and - 16 16.5 17 17.5 18

Thermal conductivity (W/m·K) 15 17 18 19 20.5 22

Electrical resistivity (Ω·mm2/m) 0.73 0.8 1 1.15 1.22 1.25


WELDING 304 is suitable for all conventional welding techniques.This grade does not require thermal treatment after welding. N/A

PITTING CORROSION 304 is successfully used in media where chloride concentration does not exceed 200 ppm. N/A

CORROSION RESISTANCE 304 shows good corrosion resistance in a wide range of applications. As an example, 304 exhibits corrosion rates lower than 0.10 mm/year in the following media:
-20% acetic acid at 800C.
-90% formic acid at 200C.
-20% phosphoric acid at 600C.
-20% nitric acid at 500C.
-90% sulphuric acid at 200C.
-Toluene.
-Milk.
-Beer.
-Juice.
-Wine.

SURFACE CLEANING Wash the surface with neutral soap and water applied with a cloth or a brush without scratching the stainless steel. Then, always rinse the stainless steel with water to remove completely the cleaning agent. Finally, it is recommended to dry the surface to preserve a good superficial condition. In severe environments, a frequent cleaning is strongly recommended.

SPECIFICATIONS 304 can be delivered according to EN, ASTM, ASME, AMS, QQS and MILS standard requirements.
304 is approved in compliance with:
-PED (Pressure Equipment Directive), DGRL 97/23/EG according to EN 10028-7 and AD2000 Merkblatt W2 and W10.
-Lloyd´s Register of Shipping.
It complies with the European Directives:
-Food industry, RE 1935/2004.
-Hexavalent chromium, ROHS.
-Electrical instruments, ROHS.

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