4J36 Invar 36 Alloy Plate for Aerospace Tooling - 36% Nickel, 0.291 lb/cu in Density

Price Negotiable

Price: Negotiation

MOQ: Negotiation

Delivery Time: 25-30 days subject to the clients' requirement and quantity

Brand: BLM-IV-1

Product Description

Aerospace Composite Tooling 4J36 Invar 36 Alloy Plate

4J36 Invar 36 alloy plate features exceptionally low thermal expansion characteristics, making it ideal for precision tooling and dies in aerospace composite manufacturing applications.

Material Overview

4J36 Invar 36 is a 36% nickel-iron alloy with a thermal expansion rate approximately one-tenth that of carbon steel at temperatures up to 204°C (400°F). This austenitic alloy maintains excellent strength, toughness, and ductility while providing useful corrosion resistance.

Key Properties

Low thermal expansion coefficient up to 204°C
Magnetic below Curie point, non-magnetic above
Strong, tough, and ductile material characteristics
Standard alloy for low expansivity applications up to 400°F

Chemical Composition

Element	Min	Max
Carbon	--	0.15
Nickel	36.0 nominal	36.0 nominal
Phosphorus	--	0.006
Iron	Bal	Bal
Silicon	--	0.40
Manganese	--	0.60
Sulfur	--	0.004
Chromium	--	0.25
Cobalt	--	0.50

Physical Specifications

Property	Value
Specific Gravity	8.05
Density (lb/cu in)	0.291
Density (kg/cu m)	8055
Thermal Conductivity (Btu-in/ft²/hr/°F)	72.6
Thermal Conductivity (W/m·K)	10.5

Heat Treatment Guidelines

Treatment	Time/Temp/Cool	Application
Full Anneal	1 hr at 1550°F or 2 hrs at 1350°C air or oven cool	Following extensive forming or welding
Stress Relieve Anneal (optional)	2 hrs at 600°F air or oven cool	Between rough and final machining, or following minor weld repairs