All bars are cleaned by shot blasting before drawing, then pulled through a carbide die, straightened, saw cut to length, oiled, and shipped. Cold drawing results in a product with higher tensile and yield strength, smoother surface finish, and a closer size tolerance.
Our Cold Drawn bars meet or exceed the standards set forth by ASTM A108 (ASTM A108-18, Standard Specification for Steel Bar, Carbon and Alloy, Cold-Finished, ASTM International, West Conshohocken, PA, 2018).
Cold drawing size capabilities range from 1” through 6” in size, lengths up through 40’. We do not have a shape straightener, but have been able to cold draw shapes straight enough for our customers to use right off the draw bench.
We are capable of cold drawing Rounds, Squares, Flats, and Hex shapes.
Round bars can be drawn to a standard draft or heavy draft 100K min yield ASTM A311 class B (ASTM A311 / A311M-04(2015), Standard Specification for Cold-Drawn, Stress-Relieved Carbon Steel Bars Subject to Mechanical Property Requirements, ASTM International, West Conshohocken, PA, 2015, www.astm.org).
We can draw all carbon, alloy, resulphurized & rephosphorized grades. Inquire for capabilities drawing copper, bronze, or other non-ferrous materials.
Cold drawn grades (but not limited to): 1018 – 1030 – 1045 – 10V45 – 1050 – 1117 – 1141 – 1144 – 1212 – 1213 – 12L14 – 1215 – 1522 – 1541 – 4130 – 4140 – 4150 – 8620.
Depending on grade and size, bars can be annealed or heat treated.
Northlake can also furnish Turned & Drawn bars for customers who require seam and decarb-free surfaces.
We carry several cold drawn items in our finished stock inventory.
These include 1.5” thru 6” round bars.
We also produce and stock cold drawn squares up to 5″ Sq and flats in many size combinations.
Click here to learn even more about CD and other cold finished bars.