1.4550 – UNS S 34709 – 347H

1.4550 – UNS S 34709 – 347H2018-06-18T09:04:12+00:00

1.4550

  • 347H
  • S 34709

1.4550 is austenitic  chromium-nickel stainless steel with titanium and niobium addition. Application : chemical, oil and food industrie.

Mechanical Properties

Tensile strength:510-740N/mm²
Yield strength 0,2% :205≥ N/mm²
Elongation:40/30≥ %
Hardness HB30:215≤ HB

Chemical Composition

Carbon

C

0,08%  max

Silicon

Si

1,00% max

Magnese

Mn

2% max

Phosphorus

P

0,045% max

Sulphur

S

0,015% max

Chromium

Cr

17,0-19,0%

Nickel

Ni

9,0-12,0% max

Heat Treatment

1050-1100°C followed by water quenching

good resistance to intercrystalline corrosion  to ca750°F
non-corroding

  • WIG
  • well weldable
  • MAG solid wire
  • manual arc welding (E)

Marking

All material will be marked as follow:

  • Manufacturer’s name
  • Material grade
  • Size
  • Heat Number

Certification

Material will be delivered with certificate EN 10204 3.1

products

Pipes, piping material

pipes

Flanges, piping material

flanges

Fittings, piping material

fittings

Plates, piping material

plates

Round Bar, piping material

bars

Forged Fittings, piping material

forged fittings