1.4550 – UNS S 34709 – 347H

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

2,00% max

PHOSPHORUS

P

0,045% max

SULPHUR

S

0,015% max

CHROMIUM

Cr

17,0-19,0% max

NICKEL

Ni

9,0-12,0% max

1050-1100°C followed by water quenching

OTHER High Temperature stainless steels

EURONORM/DINWERKSTOFF NR.AISIUNSBRAND NAME
X6 CrNi 18-111.4948304HS 30409
X12 CrNiTi 18-91.4878321HS 32109
X6 CrNiNb 18-101.4550347HS 34709
X6 CrNiMo 17-131.4919316HS 31609
X5 NiCrAlTi 31-20
X8 NiCrAlTi 32-21		1.4958
1.4959		N 08810
N 08811		INCOLOY 800H/HT ®
X12 CrNi 25-211.4845310SS 31008

Click the material number to view the material data sheet.

pipes

flanges

fittings

plates

bars

forged fittings