Alloy 330

UNS N08330
Werkstoff – Nr. 1.4864
SAE AMS 5716

Alloy 330 (NiCr 40/20) is austenitic alloy dope with entity of titanium nitride has a high level of corrosion resistance, particularly to oxidation, carburization and nitridation. It has a solid solution composition and is not hardenable by heat treatment. Its oxidation resistance is enhanced by the silicon content. Can be carry out at temperatures up to 1100°C in neutral atmospheres. It is readily fabricated using standard procedures for stainless steels and nickel alloys.

Chemical composition

Nickel Ni 34-37% Chromium Cr 17-20% Iron Fe balance Carbon C 0.08% max. Silicon Si 0.75-1.5% Manganese Mn 2.0% max.
Phosphorus P 0.030% max. Sulfur S 0.030% max.

Physical properties

Density g/cm3

Electrical resistivity at 20°C Ω mm2/m

Melting point °C

Max continuous operating temperature in air °C

Magnetic properties

7.95

1.09 1400

1100

non-magnetic


Mechanical properties

Yield strength
Rp0.2
MPa

Tensile strength
Rm
MPa

Elongation
A%

Hardness
Hv

245

580-750

30

220


Product forms

Product

    Size, mm   

Condition of supply

  wire

0.2 – 12.0

            soft annealed
            semi-hard
            hard

  stranded wire

5.0 – 60.0

            hot finished
            cold finished
            peeled
            bright turned
            bright annealed


Applications

Alloy 330 is used extensively in elevated temperatures where resistance to the combined effects of thermal cycling and carburization is required. It is using for industrial heating furnaces; for muffles, retorts, conveyor systems, baskets and boxes, and various fixtures:
  • chemical and petrochemical processing
  • ore processing
  • power generation
    1. boiler fixtures
    2. gas turbine components
  • thermal processing
    1. heat-treat furnace containers
    2. heat-treat furnace components
    3. high temperature fans
    4. salt pots

Our customers can buy Alloy 330 wire online according to their requests.