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Types of Cold Finished Bars: Many times we hear the term “cold finished” in the steel industry, but many times people will wonder, “What’s a Cold Finished Steel Bar, exactly?”  There are three main types of cold finished (CF) categories.  First, are cold drawn (CD) bars, which represent the largest in the way of tonnage.  The second type is turned & polished (T&P) bars.  The third type is turned, ground & polished (TG&P) bars.  While there are other variations on these types, such as cold drawn + turned & polished (CD-T&P), turned & ground (T&G), and others, they are just variations on the main three …

Of all “cold finished” steel bars, cold drawn bars make up the largest production in the way of sheer tonnage and usage.  “Cold finished” bars consist of cold drawn , turned ground & polished, turned & ground, turned & polished, or rough turned.  Cold drawn bars are used in high volume productions of machined parts as well as shafting and other applications.  Their mechanical and dimensional properties give them an appeal over hot rolled bars.  Below we will answer the question, “How is cold drawn steel made?” There are many benefits to using cold drawn steel as compared to hot rolled …

In previous posts we’ve discussed the features of cold finished steel bars.  Now we’ll get into more details of one important feature, which is the surface finish of cold finished steel. You can review what a cold finished steel bar is here:  What’s a Cold Finished Steel Bar? Surface Finish Probably the easiest of the features to see and verify on a cold finished bar is it’s surface finish.  One can easily recognize the difference in finish when comparing a cold finished bar to a hot rolled bar. A hot rolled bar comes out of the mill (produced at temperatures of …

Out of Roundness on Cold Finished Steel Products Let us first understand that it is not sufficient just to measure the diameter of the shaft in different places with a micrometer, with the difference in readings representing out of roundness.  There will be consequences to this; the most being it can affect the fit between components (ie: a bearing on a shaft).  To accomplish accurate out of roundness readings, the v-block is the most widely affordable and accepted for shop purposes.  This technique is done by placing the shaft in a v-block, then rotating it while in contact with a …

When measuring how smooth a turned, ground & polished (TGP), chrome plated hydraulic cylinder rod, or any other cold finished bar, the primary reading or parameter used is Ra surface finish.  There are many other parameters to measure surface finish by, a number well over 100.  But today we will focus on this most common in the cold finished steel bar industry, Ra surface finish. What is Surface Finish? In a nutshell, surface finish is how smooth or rough the surface of the bar or other medium is.  The smoother the finish, the lower the Ra number will be.  If you …

Are you searching for hydraulic cylinder rods?  You’ve come to the right place.  Northlake Steel manufactures chrome plated (CPO) and induction hardened + chrome plated (IH-CP) cylinder rods.  All of our bars are produced using precision centerless grinding and polishing methods, giving us the ability to produce the highest quality hydraulic cylinder rods around. What we produce and offer: Diameter CPO: up to 16″ Rd.  Imperial and metric sizes. Diameter IH-CP: up to 12″ Rd.  Imperial and metric sizes. Length: We carry lengths on the floor to 45′ long, and can produce to even longer lengths upon request and review. …

“Precision Shafting Ground to a Tolerance Finer than a Human Hair.” ® Here at Northlake Steel, we take pride in our ability to produce the highest quality steel shafting ground finer than a human hair. We coined the phrase “precision shafting ground to a tolerance finer than a human hair.”® What we mean by this is that a typical human hair is 0.004″ thick.  As you know from your own hair, this is very, very thin!  With our precision grinding and polishing techniques, we’re able to hold steel bar size tolerances to as close as 0.0002″ (two ten-thousandths of an inch).  This …

Need big bar precision ground or cold finished steel? Look no further than Northlake Steel! We pride ourselves on our capability to produce ground, polished, & chrome plated big bar up to 16″ diameter and 75′ long.  Don’t forget we can induction case harden (IH) up to 12″ diameter x 75′ long as well! Click here for big bar TG&P Click here for big bar CPO & IH-CP chrome plated rounds.

Often we’re asked by customers what amount of CF Cleanup & Amount of Stock Removal is needed to make their cold finished end use product.  Hot rolled steel bars inherently come out of the mill with a rough, abrasive, discolored & dirty surface.  These bar can have seams, scabs, and other defects.  Cold finished bars like TGP, T&P, chrome plated CPO & IH-CP, and linear shafting must be free of all hot roll defects and will have a smoother surface finish. CF Cleanup & Amount of Stock Removal Needed Standard carbon grades such as 10xx – examples like 1018, 1045, & 1060. …

Read Our Press Release Detailing Expanded Cold Drawn Square Offerings Northlake Steel Expands Service Offering, Plans for Additional Growth in Product Availability Northlake Steel Corporation’s long-standing experience with cold drawn steel, paired with their commitment to quality, results in the best total cost solution for customers. VALLEY CITY, OHIO (PRWEB) MARCH 08, 2016 Northlake Steel Corporation announces the expansion of their product line to better service customers and serve as one-stop option for domestic, cold drawn steel products for customers. Northlake Steel offers a variety of large dimension sizes including 3 and 4 inch cold drawn squares and will include 5 and 6 …