material

PRODUCT

Special Products
BW Fittings
Forged Fittings
Steel Pipe Tube
Flanges
Fasteners
Steel Sheet Plate
Round Bar
Welding Wire Electrodes

PRODUCT MATERIAL

STAINLESS STEEL NITRONIC 50HSDownload

Nitronic 50HS (XM-19), or N-50HS is a high strength and good corrosion resistant austenitic stainless steel. It has more than double the yield strength of 304 and 316 stainless steel and has better corrosion resistance than 317L stainless steel. Nitronic 50HS (XM-19) Stainless remains non-magnetic even after being severely cold worked. It maintains strength at high temperatures as well as sub-zero temperatures. The cold worked (HS) version meets the mechanical properties of ASTM A276 Conditions S.

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
API 6A
ASTM A 262ASTM A 276 Condition SASTM A 370ASTM A 479ASTM A 484
ISO 15156-3
NACE MR0175
UNS S20910
W. Nr./EN 1.3964

Inventory

Nitronic®50HS Round Bar

Common Trade Names

XM-19, N-50HS

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  • ft/ft2 • hr • °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

135

0.2% Yield Strength, ksi

105

Elongation, %

20

Reduction of Area, %

50

 

Nitronic®is a registered trademark of AK Steel.