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250
250 Maraging Steel Alloy Product Guide
Applications | Specifications | Mechanical and Chemical Data
Overview
Maraging Steel Alloy is a carbon free iron-nickel blend of steel with hint of aluminum, titanium, cobalt, and Molybdenum. It is easily cold worked, forged, and welded. Additionally, maraging steel has good machinability. It is a very high strength, comparatively low weight metal often used in the aerospace industry.
Common Trade Names
AISI Grade 18Ni(250), UNS K92890
Other Resources
Weight Calculator | Mill Test Reports
Products
Applications
- Aerospace
250 Specifications
AMS | MIL |
---|---|
6512 | S46850 |
Physical Properties 250 | |||||
Annealed | |||||
---|---|---|---|---|---|
Density | 0.290 lb/in3 | ||||
Ultimate Tensile Strength | 140 ksi | ||||
Yield Tensile Strength | 96 ksi | ||||
Shear Modulus | 10,600 ksi | ||||
Shear Strength | 87 ksi | ||||
Hardness Rockwell | Brinell | B105 | 286 | ||||
Elongation at Break Percentage | 17% | ||||
Reduction of Area | 75% | ||||
Modulus of Elasticity | 27,000 ksi | ||||
Poisson's Ratio | 0.30 | ||||
Melting Point | 2,610-2,690 °F | ||||
Specific Heat | 1.1 x 10^-1 BTU/lb-°F | ||||
Thermal Conductivity | 176 BTU-in/hr-ft^2-°F |
Chemistry Information
|
|
Element |
Percentage |
Al | 0.1 |
B | 0.0003 |
C | 0.03 max |
Co | 7.5 |
Fe | 68 |
Mo | 4.8 |
Mn | 0.1 max |
Ni | 18.5 |
P | 0.01 max |
S | 0.01 max |
Ti | 0.4 |
Si | 0.1 max |
Zr | 0.01 |