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Stainless Steel, Alloy 40

This grade is a Nitrogen strengthened Austenitic Steel which provides a combination of high strength excellent resistance to corrosion especially at high temperatures. This stainless is used in numerous applications including Aircraft components, fasteners, pollution control and chemical processing.

Chemical Composition (Weight %)
  C P Si Ni Cu Mn S Cr N Mo Fe
Min

  5.5
8.00
19.00 0.15

Max 0.04 0.06 1.00 7.5 0.75 10.00 0.03 21.50 0.40 0.75 Bal

Typical Mechanical Properties (Min)
Condition Tensile Strength, MPa Yield Strength 0.2%, MPa  Elongation %  Reduction of Area %  Hardness HB
A 621 345 45 60

 

Related Specifications and Conditions

UNS S20900, UNS21904, XM10, XM11, AMS5656, AMS5561, AMS5562, AMS5595, AMS5656, ASTM A182, ASTM A276, ASTM A479, ASTM A580, ASTM A412, Mil-T-9821

Available Forms 

Round bar, flat bar, sheet, strip, wire, coil, tube, forgings
 
Chemical Composition (Weight %)
  Min Max
C   0.04
P   0.06
Si   1.00
Ni 5.5 7.5
Cu   0.75
Mn 8.00 10.00
S   0.03
Cr 19.00 21.50
N 0.15 0.40
Mo   0.75
Fe   Bal

Typical Mechanical Properties (Min)
Condition A
Tensile Strength, MPa 621
Yield Strength 0.2%, MPa 345
 Elongation % 45
 Reduction of Area % 60
 Hardness HB  
 

Related Specifications and Conditions

UNS S20900, UNS21904, XM10, XM11, AMS5656, AMS5561, AMS5562, AMS5595, AMS5656, ASTM A182, ASTM A276, ASTM A479, ASTM A580, ASTM A412, Mil-T-9821

Available Forms 

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