9-4-30 VAC MELT N&T

9-4-30 Vac Melt Normalized & Tempered is an alloy with a high nickel and cobalt content to provide strength and toughness. This vacuum melted alloy exhibits exceptional cleanliness and comes in the normalized & tempered condition for optimal machinability before heat treat. Once heat treated and quenched this steel is designed to have high hardenability teamed with good weldability and excellent fracture toughness. Due to these qualities 9-4-30 is used to produce gears, pressure vessels, armor plate, rocket motor cases, and aircraft structural components. (UNS K91283)

Common Applications

  • AerospaceAerospace
  • DefenseDefense

Benefits

  • Good Strength
  • Good Hardenability
  • Excellent Fracture Toughness
  • Good Machinability
  • Good Weldability

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9-4-30 VAC MELT N&T

We Stock 9-4-30 VAC MELT N&T to the Following Specifications:

  • AMS-6526 EXC. AS SHIPPED COND.
  • BMS-7-182 TYPE 2
  • MIL-STD-2154 CL A (SONIC)
  • MMS-2102 EXC. FRACTURE TOUGH/SONIC
  • STO-160-LBO-012

Chemical Makeup

ElementMinMax
Carbon, C0.290.34
Manganese, Mn0.10.35
Silicon, Si-0.2
Phosphorus, P-0.01
Sulfur, S-0.01
Chromium, Cr0.91.1
Molybdenum, Mo0.91.1
Nickel, Ni78
Copper, Cu-0.35
Vanadium, V0.060.12
Cobalt, Co4.254.75

Cross-Fittings

Round

There are 13 sizes and conditions.

  • 3/4 - CG
  • 1 - CG
  • 1-1/4 - CG
  • 1-1/2 - CG
  • 1-3/4 - HR RT
  • 2 - HR RT
  • 2-1/4 - HR RT
  • 2-1/2 - HR RT
  • 2-3/4 - HR RT
  • 3 - HR RT
  • 3-1/4 - HR RT
  • 3-1/2 - HR RT
  • 4 - HR RT

Flat

There are no sizes and conditions for the flat cross-section.

Square

There are no sizes and conditions for the square cross-section.

Hex

There are no sizes and conditions for the hex cross-section.