Turned, Ground and Polished (TG&P)

Many years of experience producing turned, ground and polished, also known as TG&P, shafting precisely to customer specifications has enabled Northlake Steel to become a proven industry leader.

SIZES

With diameters ranging from 1/2" round thru 13" round...and lengths up thru SEVENTY feet (70')... we are virtually unchallenged in size and precision TG&P capabilities.

QUALITY
We believe that our real asset is not just our range of sizes, but the quality we put into all of our products. Our standard tolerances (listed below) are closer than AISI standard TG&P tolerances. Upon request we can hold even closer tolerances for the very quality-oriented customer. Our standard RMS finish is also closer than industry standards. We guarantee 5-10 RMS on all of our bar and tube products. The straightness tolerance on Northlake material is .001 to .002 inches per foot, not more than .010 T.I.R.

We can apply all of these processes to OD tubing with the same diameter and length capabilities.

We will produce any standard, metric, or special size shafting. We are confident that we can fulfill all of your company's turned, ground and polished needs. Please contact us with your requirements.

Size Tolerances for Turned, Ground and Polished (TG&P) Rounds
Carbon, Alloy & Stainless Steel Bars

Diameter AISI Tolerances Northlake Tolerances

0.5" - 1.9375"
2.0" - 3.0"
3.0625" - 4.0"
4.0625" - 10.0"
10.0625" - 13.0" +0.000/-0.0015
+0.000/-0.002
+0.000/-0.003
+0.000/-0.004
+0.000/-0.005 +0.000/-0.001
+0.000/-0.0015
+0.000/-0.002
+0.000/-0.003
+0.000/-0.004

PROCESSING CUSTOMER SUPPLIED MATERIAL