Materials Design Center Processes Unit Conversion Formulas Mathematics
 Calculators Discussion Forum Trade Publications Directory Service
Machine Design

How-to, in-depth technical articles for machine design engineers

Offshore

International news and technology for marine/offshore operations around the world.

CNC Machining Design Guide

Optimize your designs, reduce machining time, and lower your costs.

NASA Tech Briefs

Innovations developed by NASA and its industry partners in a wide array of fields.

more free magazines
Glossary » Materials » Alloys » Steel » Alloy Steel » SAE 950C
SAE 950C is a HSLA (High-Strength Low-Alloy) Steel grade Alloy Steel. It is composed of (in weight percentage) 0.25% Carbon (C), 1.60% Manganese (Mn), 0.04% Phosphorus (P), 0.05% Sulfur (S), 0.90% Silicon (Si), and the base metal Iron (Fe). Another common designation of SAE 950C alloy steel is AISI 950C.
Steel is the common name for a large family of iron alloys. Steels can either be cast directly to shape, or into ingots which are reheated and hot worked into a wrought shape by forging, extrusion, rolling, or other processes. Wrought steels are the most common engineering material used, and come in a variety of forms with different finishes and properties. Alloy steels are steels that exceed the element limits for Carbon steels. However, steels containing more than 3.99% chromium are classified differently as stainless and tool steels. Alloy steels also includes steels that contain elements not found in carbon steels such as nickel, chromium (up to 3.99%), cobalt, etc.

The typical elastic modulus of alloy steels at room temperature (25°C) ranges from 190 to 210 GPa. The typical density of alloy steels is about 7.85 g/cm3. The typical tensile strength varies between 758 and 1882 MPa. The wide range of ultimate tensile strength is largely due to different heat treatment conditions.