3140 steel equivalent, chemical composition and mechanical properties
Find the most affordable prices and offers from SAE 3140 steel hex bar vendors in the Middle East
What is 3140 steel rod used for?
3140 Steel Rod is a versatile alloy widely used in many industries. It’s solid and durable, making it perfect for construction and manufacturing projects. It can also be machined and shaped to meet the needs of specific applications. Steel bar 3140 is ideal for projects requiring a high strength-to-weight ratio. Alloy Steel 3140 Black Bar is also used in the construction and manufacturing of many products.
Get cut to size AISI 3140 cd steel bars on demand with EN 10204 3.1 mill test reports
Difference between peeled and turned AISI 3140 rectangular bar
Alloy steel UNS G31400 rounds is a chromium-molybdenum alloy widely used in many industrial applications. You’ll often find it in a round, rectangular, or square bar. The two most common forms are peeled and turned bars. The peeled bar has been peeled off the nugget, while the turned bar has been turned on a lathe.
A peeled bar is more expensive, but it has a better surface finish and is more consistent in shape and size. The turned bar is less costly, but it has a rougher surface finish and needs to be more consistent in shape and size.
Typically, AISI 3140 steel cold drawn round bar are quenched and tempered or annealed under heat treatment conditions.
How do you calculate tolerance of SAE 3140 steel hex bar?
Let’s break down how to determine the tolerance of SAE 3140 steel (it’s easier than you think). First, you need to figure out the size of the round bar and then determine what kind of tolerance is required to ensure precision and accuracy. The size of the round bar will determine which grade it is (such as A-4 or A-6). Once you know which grade it is, refer to the material specification, which will list out all of the allowable tolerances for that particular grade.
For example, the Alloy 3140 Hexagonal Bar has a tolerance range from -0.005 inch to +0.005 inch in increments of 0.005 inch. So, if your 3140 Round Bar needs to be precisely 3 inches thick, your allowable tolerance range would be +0/-0.005 inch. Any measurements over 3 inches (3.005) or under 3 inches (-0.005) can still be considered accurate and within acceptable limits for an A-4 grade steel hex bar.
Get AISI 3140 rectangular bar 10mm–1000mm in diameter, 1000mm–12000mm in length, with a maximum of 3mm/M in straightness
Cold finished vs cold drawn G31400 polished bar stock
Now, you’ve probably heard of cold finished and cold drawn 3140 Round Bar, but what does that mean exactly?
Well, the Alloy Steel UNS G31400 Cold Rolled Bar is cut from larger pieces of steel and then machined (or ground) to give it a polished finish. This is an excellent option if you need a precise shape or size that may be hard to find in a regular store.
On the other hand, AISI 3140 Steel Cold Drawn Round Bar stock is drawn out of an ingot. They are made up of a G31400 Polished Bar. This process lengthens the steel and gives it an even finer finish. Working with complex shapes is also easier than cutting them out of pre-existing pieces.
However, both have pros and cons, and each provides various benefits depending on your desired outcome. Ultimately, it’s up to you to decide which is best for your project.