Specialist in high quality Aluminium, Titanium, Stainless Steel & Nickel Alloys
+44 1536 400254

Stainless Steel, Alloy 50

This grade is a Cr-Ni-Mn-Mo Austenitic Steel which provides a combination of corrosion resistance and strength, not found in any other commercial material available in its price range. This austenitic stainless has corrosion resistance greater than that provided by Types 316 and 316L. Common applications are Marine Pump Shafts, Valve fittings & high strength Fasteners.

Chemical Composition (Weight %)
  C V Si P S Cr Ni N Nb(Cb) Mn Mo Fe
Min
0.10  

20.50 11.5 0.20 0.10 4.00 1.5
Max 0.06 0.30 1.00 0.04 0.03 23.50 13.5 0.40 0.30 6.00 3.0 Bal

Typical Mechanical Properties (Min)
Condition Tensile Strength, MPa Yield Strength 0.2%, MPa  Elongation %  Reduction of Area %  Hardness HB
A 690 380 35 55 293 max
 

Related Specifications and Conditions

UNS S20910, ASTM A193, ASTM A276, ASTM A479, AMS5764, ASTM A240, AMS5861, 1.4565

Available Forms 

Round bar, flat bar, sheet, strip, wire, coil, forgings
 
Chemical Composition (Weight %)
  Min Max
C   0.06
V 0.10 0.30
Si   1.00
P   0.04
S   0.03
Cr 20.50 23.50
Ni 11.5 13.5
N 0.20 0.40
Nb(Cb) 0.10 0.30
Mn 4.00 6.00
Mo 1.5 3.0
Fe   Bal

Typical Mechanical Properties (Min)
Condition A
Tensile Strength, MPa 690
Yield Strength 0.2%, MPa 380
 Elongation % 35
 Reduction of Area % 55
 Hardness HB 293 max
 

Related Specifications and Conditions

UNS S20910, ASTM A193, ASTM A276, ASTM A479, AMS5764, ASTM A240, AMS5861, 1.4565

Available Forms 

Round bar, flat bar, sheet, strip, wire, coil, forgings