UNS N19903 Bars
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We could produce UNS N19903 bars, N19903 bars,UNS N19903 round bars, UNS N19903 rods,UNS N19903 square bars,UNS N19903 flat bars,UNS N19903 hot rolled bars, N19903 cold drawn bright bars,N19903 forged bars, UNS N19903 forging bars,UNS N19903 Hexagon Bar,UNS N19903 rectangular bars from china.

We could produce UNS N19903 bars with diamter from from 5MM to 1000MM and length up to 15 metres

UNS N19903 A nickel-iron-cobalt alloy with additions of niobium, titanium, and aluminum for precipitation hardening. The alloy combines high strength with a low and constant coefficient of thermal expansion at temperatures to about 800°F (430°C)

The chemical composition of UNS N19903 bars is as follows


Content (%)

Iron,  Fe


Nickel,  Ni


Cobalt,  Co


Niobium,  Nb


Titanium,  Ti


Aluminum,  Al


The mechanical property of N19903 bars is as follows




Tensile  strength (precipitation hardened)

1310 MPa

190000 psi

Yield  strength (@ strain 0.200 %, precipitation hardened)

1100 MPa

160000 psi

Elastic  modulus (@ 0°C/32°F)

146.8 GPa

21290 ksi

Poisson's  ratio (@ 250°C/482°F)



Elongation  at break (precipitation hardened)



We could produce UNS N19903 bars as per the standard of ASTM B462 and ASTM B473

In order to improve the quality of UNS N19903 bars,we could use VIM (Vacuum Induction Melting),ESR (Electroslag Remelting)and VAR (Vacuum Arc Remelting) to melt the material of UNS N19903 bar

As per heat treatment of UNS N19903 bars, we could do annealed treatment,or solution treatment,ageing treatment as per the requirement of the clients

We could do 100% ultrasonic test according to EN102768-3, SA388,,ASTM A520-1974, Sep 1921 C/c etc as per the requirement of the clients

We also could do 100%  Liquid Penetrant Examination as per the ASTM E165-1995 and 100% Magnetic Particle Examination as per the standard of A275/A275M and so on

We could supply UNS N19903 round bars certificate as per the standard of EN10204-3.1 or EN10204-3.2(By third party,like LR,BV,RINA,ABS,DNV,GL,NK,KR and so on)

In order to control the quality of N19903 bars, We will do following inspections:Charpy Impact Testing,Tensile Testing,Chemical Analysis,Metallurgical Evaluation,Failure Analysis,Hardness Testing,Macrostructure Testing,Stress Rupture Testing as per the needs of the clients

As per surface finish of UNS N19903 bars, we could supply them in the form of black surface, rough machined to bright surface or polish into bright surface,or peeled into bright surface

Our UNS N19903 bars are widely used in Ball Valves,Check Valves,Air filter,Oil filter,Heat Exchangers, Pressure Vessels,Rotary screw compressors,Cyclone Separators, Water tube boilers,In-line pumps,Magnetic pumps,Batch Steam Sterilizer,Naval Construction and so on

In order to export our N19903 bars, We will do proper packing in sturdy wooden boxes, material sealed in plastic foil, to avoid any damage during transport.

Please tell us the size and quantity of UNS N19903 bars UNS N19903 round bars, N19903 rods,that you need, we are glad to quote the best price for you

Except UNS N19903 bars,we also could produce UNS N19903 flanges,UNS N19903 plates,UNS N19903 fastener,UNS N19903 bolts,UNS N19903 fittings,UNS N19903 pipes,UNS N19903 tubes,UNS N19903 springs