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We carry seamless and welded stainless steel and carbon steel pipe. Check out our inventory of steel tubing and piping.

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Pipe Dimensions PDF.


4130:

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Disclaimer: The content of this page is for general information only and is not to be used for engineering or design. The content of this material specification page was compiled from available public sources and authorities on material properties. Although we believe the information to be corrrect, Metal Stock, Inc. is not responsible for the accuracy of any of the material specifications and only presents this data as general information for our customers.

4130 is a through-hardening alloy of great versatility. The chromium and molybdenum content is sufficient to provide through hardness penetration in fairly light sections. Good mechanical properties may be obtained by normalizing only
where the required strength is not too high. This grade responds to nitriding for excellent wear and abrasion resistance.

 

General Information about 4130:


APPLICATIONS:

4130 can be used for shafting, axles, gears, sprockets, piston rods, reamer bodies, well-head components, tool joints, fasteners, and hand tools.

MACHINING AND WELDING:

4130 in the annealed condition has a machinability rating of 72% of 1212, with a surface cutting speed of 120 feet per minute. 4130 may be welded by any of the common welding processes. Preheating and postheating are recommended for difficult weldments. The grade of welding rod to be used depends upon thickness of section, design,
service requirements, etc.

HEAT TREATING - Forging, Normalizing and Annealing:

Forging:
Heat to 2150º - 2250ºF.

Normalizing:
Heat to 1600º - 1700ºF. Cool in air. Average Brinell Hardness, 167.

Annealing:
Heat to 1500º - 1600ºF. Cool slowly in furnace. Average Brinell Hardness, 149.

Hardening:
Hardening range is 1550º - 1600ºF for water quench and1575º - 1625º F for oil quench. A wide range of mechanical properties can be obtained by tempering between 400º and 1300ºF.

 

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