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PRODUCT MATERIAL

STAINLESS STEEL NITRONIC 50Download

Nitronic®50 (XM-19), or N-50 is a high strength and good corrosion resistant austenitic stainless steel. It has nearly double the yield strength of 304 and 316 stainless steel and has better corrosion resistance than 317L stainless steel. N50 Stainless remains non-magnetic even after being severely cold worked. It maintains strength at high temperatures as well as sub-zero temperatures.

Chemistry

 

Ni

Cr

Mo

Mn

Si

C

N

S

P

Cb

V

Fe

MIN

11.5

20.5

1.5

4.0

-

-

0.2

-

-

0.1

0.1

-

MAX

13.5

23.5

3.0

6.0

1.0

0.06

0.4

0.03

0.045

0.3

0.3

Balance

Specifications

AMS 5764
ASTM A 193ASTM A 262ASTM A 276ASTM A 276 Condition AASTM A 276 Condition SASTM A 479
EN 1.3964
ISO 15156-3
NACE MR0175
UNS S20910
Werkstoff 1.3964

Inventory

Nitronic®50 Round Bar

Common Trade Names

N-50 Stainless

Features

· High strength austenitic alloy

· Good corrosion resistance

Applications

· Seawater pump shafts

· Heat exchangers

· Pressure vessels

· Marine hardware

 

Physical Properties

Density: 0.285 lb/inch3 
Melting Range: 2579-2642°F
Electrical Resistivity: 492 ohm circ-mil/ft

Temperature, °F

70

200

300

400

600

800

900

1000

1200

1400

Coefficient of Thermal Expansion, in/in°F x 10-6

-

9.0

-

9.2

9.6

9.9

-

10.2

10.5

10.8

Thermal Conductivity
Btu 鈥?ft/ft2 鈥?hr 鈥?°F

108

-

108

-

124

-

141

-

160

-

Modulus of Elasticity,
psi X 106 STA

-

26.2

-

-

-

-

-

-

-

-

* 70°F to indicated temperature.

Mechanical Properties

Minimum Specified Properties, ASTM A 276 Bar

Ultimate Tensile Strength, ksi

100

0.2% Yield Strength, ksi

55

Elongation, %

35

Reduction of Area, %

55

Typical Tensile Properties

Temperature, °F

-320

-100

75

200

400

600

800

1000

1200

1350

1500

Ultimate Tensile Strength, ksi

-

-

117

107

96

92

89

84

74

66

52

0.2% Yield Strength, ksi

-

-

60

50

38

35

34

32

31

31

30

Elongation, 2%

-

-

45

43.5

43.5

42.5

43.5

41

38

37

41

Impact Strength, ft-lbs

50

115

170

-

-

-

-

-

-

-

-

Nitronic® is a registered trademark of AK Steel.