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AISI 347 SS

AISI 347 is a stainless, austenitic chromium-nickel stainless steel alloyed with niobium. Due to the carbide former niobium, the material is resistant to intergranular corrosion in the welded condition, irrespective of thickness and cross-section.

In nuclear power plant construction, the stainless material steel 347 ss has established itself through its high corrosion resistance. In the private sector, it is used for household appliances. The material is also often used in the film and photographic industries.

In the chemical and food industries, the material grade AISI 347 ss is often used for tanks and apparatus.

We supply the material as sawn steel blanks directly from stock.

Overview of the most important steel

S34700, SS2338, 0H18N12Nb, 1.4550

Chemical composition

AISI 347
X6CrNiNb18-10
C Si Mn P S Cr Mo Ni Nb
min. 17,0 9,0 10xC
max. 0,08 1,00 2,00 0,045 0,15 19,0 12,0 1,0

Characteristics

Weldability good
Corrosion resistance very good
Polishability only conditionally possible
Machinability only possible to a limited extent

Welding

The material 347 ss is suitable for welding with all common welding methods. No special measures or post-weld heat treatments are required.

Corrosion resistance

Good resistance to a wide range of environments in the chemical, textile, oil refining, dairy and food industries.

Hot forming

Hot forming should be carried out between 1120°C – 1020°C. This is followed by cooling in air or water.

Processing

Cold forming is possible
Machining processing only possible to a limited extent
Polishability unsuitable

Physical properties

Density (kg/dm3 ) 7.9
Electr. resistance at 20°C (Ω mm2 /m) 0.73
Thermal conductivity at 20°C (W/m K) 15
Spec. heat capacity at 20°C (J/kg K) 500
Steel from stock

Produced to the highest Standards

Special steel quick delivery from stock

Quick delivery

Special steel from stock

From stock in US

Specialist for sawn steel blocks directly from stock

Contact person

Karol Borycki
Phone: +1 409 2395919
Mail: info@specialsteel.com

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