Michigan Seamless Tube free machining steel tubing includes all the popular resulfurized and rephosphorized grades. Users can realize a definite economic advantage between comparable free machining bar and XTROCUT tubing when manufacturing parts that require hole drilling. Production time is improved, tooling is cheaper, waste is minimized. The bottom line is that costs are reduced. In addition to the XTROCUT line, special chemistries that enhance machinability can be developed by Michigan Seamless Tube experienced Technical Services Engineers. WHY XTROCUT? Time after time, industry applications have proven that you can choose XTROCUT over bar stock and improve machinability and the quality of the finished part. With the "hole" already in place, expensive time-consuming drilling stations can be replaced with less expensive faster boring operations. Coolants can be directed to the inside as well as outside surface. Using XTROCUT for through-bored parts means less scrap, more parts per hour and improved profit. Extensive metal movement during hot forming coupled with cold drawing work through a die and over a mandrel provides precise control over mechanical properties and orderly distribution of sulfide inclusions giving XTROCUT excellent lubricity. Heat generated during machining dissipates quickly helping control build-up and slough-off on tool edges. Tools run cooler, stay sharp longer and surface finish is improved considerably. Download the XTROCUT brochure PDF Table of Xtrocut Grades MST XTROCUT & FREE-MACHINING STEEL TUBING vs. PLAIN CARBON STEEL TUBING GRADE XTROCUT 150 XTROCUT 220 C1018 C1026 FREE-MACHINING COMPARABLE AISI GRADE 1137/1141 1119 Mod.     1118 DESCRIPTION High carbon resulphurized steel Intermediate carbon resulphurized steel Steel grade carried in Distributor's stock. Recommended for general use Slightly higher properties than C1018. Good for carburizing. Intermediate carbon, resulphurized steel MACHINABILITY SURFACE FEET-PER-MINUTE 150 220 130 140 170 PERCENT RELATIVE SPEED BASED ON 1112 AS 100% 90 98 76 85 91 CHEMICAL ANALYSIS ( % ) 0.32/0.45 C 1.35/1.65 Mn 0.04 Max. Phos. 0.08/0.13 Sul. 0.13/0.18 C 1.30/1.60 Mn 0.04/0.07 Phos. 0.08/0.16 Sul. 0.13/0.18 C 0.60/0.90 Mn 0.040 Max. Phos. 0.050 Max. Sul. 0.22/0.28 C 0.60/0.90 Mn 0.040 Max. Phos. 0.050 Max. Sul. 0.11/0.18 C 1.30/1.60 Mn .040 Max. Phos. 0.08/0.13 Sul. TYPICAL MECHANICAL PROPERTIES (STRESS-RELIEVED CONDITION) TENSILE YIELD ELONGATION HARDNESS 110,000 psi 100,000 psi 12.0% RB 90-105 90,000 psi 80,000 psi 12.0% RB 90-(105) 85,000 psi 70,000 psi 15.0% RB 90-100 85,000 psi 75,000 psi 15.0% RB 90-100 90,000 psi 80,000 psi 12.0% RB 90-(105) AVAILABILITY MST MST MST MST MST SIZES OD's to 4.250" Walls to 0.750" OD's to 4.250" Walls to 0.750" OD's to 5.000" Walls to 0.875" OD's to 5.000" Walls to 0.875" OD's to 4.250" Walls to 0.750" Download the XTROCUT brochure PDF © Michigan Seamless Tube 2006