ASTM A519 Seamless Mechanical Steel Tubing Totten Tubes stocks a huge selection of A519 seamless mechanical steel tube, with sizes and styles to match any requirements. The ASTM A519 steel tube specification covers both hot-finished and cold-finished mechanical tubing in sizes up to 12-3/4” O.D. A519 is available in round, square, and rectangular profiles, and in special sections. A519 seamless tubing is commonly used in applications requiring machining, heat treating, close tolerances, smooth finishes, and/or definite physical properties. Request an eQuote or contact Totten Tubes for more information on A519 mechanical steel tubing. Aspects of the ASTM A519 specification that are most relevant here include: A519 Steel Tube Materials & Manufacture Steel used to produce A519 steel tube may be made by any process; if the purchaser requires a specified type of melting, please note this in your RFQ or when ordering. A519 tubes must be made in a seamless process and either hot finished or cold finished, as specified. Chemical Requirements for A519 Seamless Steel Tubing For Low-Carbon Steels Chemical Requirements of Low-Carbon Steel Grade Designation Chemical Composition Limits, % Carbon Manganese Phosphorus, max Sulfur, max MT 1010 0.05-0.15 0.30-0.60 0.040 0.050 MT 1015 0.10-0.20 0.30-0.60 0.040 0.050 MT X 1015 0.10-0.20 0.60-0.90 0.040 0.050 MT 1020 0.15-0.25 0.30-0.60 0.040 0.050 MT X 1020 0.15-0.25 0.70-1.00 0.040 0.050 Chemical Requirements of Other Carbon Steels Grade Designation Chemical Composition Limits, % Carbon Manganese Phosphorus, max Sulfur, max 1008 0.10 max 0.30-0.50 0.040 0.050 1010 0.08-0.13 0.30-0.60 0.050 1012 0.10-0.15 0.30-0.60 0.040 0.050 1015 0.13-0.15 0.30-0.60 0.040 0.050 1016 0.13-0.18 0.60-0.90 0.040 0.050 1017 0.15-0.20 0.30-0.60 0.040 0.050 1018 0.15-0.20 0.60-0.90 0.040 0.050 1019 0.15-0.20 0.70-1.00 0.040 0.050 1020 0.18-0.23 0.30-0.60 0.040 0.050 1021 0.18-0.23 0.60-0.90 0.040 0.050 1022 0.18-0.23 0.70-1.00 0.040 0.050 1025 0.22-0.28 0.30-0.60 0.040 0.050 1026 0.22-0.28 0.60-0.90 0.040 0.050 1030 0.28-0.34 0.60-0.90 0.040 0.050 1035 0.32-0.38 0.60-0.90 0.040 0.050 1040 0.37-0.44 0.60-0.90 0.040 0.050 1045 0.43-0.50 0.60-0.90 0.040 0.050 1050 0.48-0.55 0.60-0.90 0.040 0.050 1518 0.15-0.21 1.10-1.40 0.040 0.050 1524 0.19-0.25 1.35-1.65 0.040 0.050 1541 0.36-0.44 1.35-1.65 0.040 0.050 Chemical Requirements for Alloy Steels Grade Designation Chemical Composition Limits, % Carbon Manganese Phosphorus, max Sulfur, max Silicon Nickel Chromium Molybdenum 1330 0.28-0.33 1.60-1.90 0.040 0.040 0.15-0.35 - - - 1335 0.33-0.38 1.60-1.90 0.040 0.040 0.15-0.35 - - - 1340 0.38-0.43 1.60-1.90 0.040 0.040 0.15-0.35 - - - 1345 0.43-0.48 1.60-1.90 0.040 0.040 0.15-0.35 - - - 3140 0.38-0.43 0.70-0.90 0.040 0.040 0.15-0.35 1.10-1.40 0.55-0.75 - E3310 0.08-0.13 0.45-0.60 0.025 0.025 0.15-0.35 3.25-3.75 1.40-1.75 - 4012 0.09-0.14 0.75-1.00 0.040 0.040 0.15-0.35 - - 0.15-0.25 4023 0.20-0.25 0.70-0.90 0.040 0.040 0.15-0.35 - - 0.20-0.30 4024 0.20-0.25 0.70-0.90 0.040 0.035-0.050 0.15-0.35 - - 0.20-0.30 4027 0.25-0.30 0.70-0.90 0.040 0.040 0.15-0.35 - - 0.20-0.30 4028 0.25-0.30 0.70-0.90 0.040 0.035-0.050 0.15-0.35 - - 0.20-0.30 4037 0.35-0.40 0.70-0.90 0.040 0.040 0.15-0.35 - - 0.20-0.30 4042 0.40-0.45 0.70-0.90 0.040 0.040 0.15-0.35 - - 0.20-0.30 4047 0.45-0.50 0.70-0.90 0.040 0.040 0.15-0.35 - - 0.20-0.30 4063 0.60-0.67 0.75-1.00 0.040 0.040 0.15-0.35 - - 0.20-0.30 4118 0.18-0.23 0.70-0.90 0.040 0.040 0.15-0.35 - 0.40-0.60 0.08-0.15 4130 0.28-0.33 0.40-0.60 0.040 0.040 0.15-0.35 - 0.80-1.10 0.15-0.25 4135 0.33-0.38 0.70-0.90 0.040 0.040 0.15-0.35 - 0.80-1.10 0.15-0.25 4137 0.35-0.40 0.70-0.90 0.040 0.040 0.15-0.35 - 0.80-1.10 0.15-0.25 4140 0.38-0.43 0.75-1.00 0.040 0.040 0.15-0.35 - 0.80-1.10 0.15-0.25 4142 0.40-0.45 0.75-1.00 0.040 0.040 0.15-0.35 - 0.80-1.10 0.15-0.25 4145 0.43-0.48 0.75-1.00 0.040 0.040 0.15-0.35 - 0.80-1.10 0.15-0.25 4147 0.45-0.50 0.75-1.00 0.040 0.040 0.15-0.35 - 0.80-1.10 0.15-0.25 4150 0.48-0.53 0.75-1.00 0.040 0.040 0.15-0.35 - 0.80-1.10 0.15-0.25 4320 0.17-0.22 0.45-0.65 0.040 0.040 0.15-0.35 1.65-2.00 0.40-0.60 0.20-0.30 4337 0.35-0.40 0.60-0.80 0.040 0.040 0.15-0.35 1.65-2.00 0.70-0.90 0.20-0.30 E4337 0.35-0.40 0.65-0.85 0.025 0.025 0.15-0.35 1.65-2.00 0.70-0.90 0.20-0.30 4340 0.38-0.43 0.60-0.80 0.040 0.040 0.15-0.35 1.65-2.00 0.70-0.90 0.20-0.30 E4340 0.38-0.43 0.65-0.85 0.025 0.025 0.15-0.35 1.65-2.00 0.70-0.90 0.20-0.30 4422 0.20-0.25 0.70-0.90 0.040 0.040 0.15-0.35 - - 0.35-0.45 4427 0.24-0.29 0.70-0.90 0.040 0.040 0.15-0.35 - - 0.35-0.45 4520 0.18-0.23 0.45-0.65 0.040 0.040 0.15-0.35 - - 0.45-0.60 4615 0.13-0.18 0.45-0.65 0.040 0.040 0.15-0.35 1.65-2.00 - 0.20-0.30 4617 0.15-0.20 0.45-0.65 0.040 0.040 0.15-0.35 1.65-2.00 - 0.20-0.30 4620 0.17-0.22 0.45-0.65 0.040 0.040 0.15-0.35 1.65-2.00 - 0.20-0.30 4621 0.18-0.23 0.70-0.90 0.040 0.040 0.15-0.35 1.65-2.00 - 0.20-0.30 4718 0.16-0.21 0.70-0.90 0.040 0.040 0.15-0.35 0.90-1.20 0.35-0.55 0.30-0.40 4720 0.17-0.22 0.50-0.70 0.040 0.040 0.15-0.35 0.90-1.20 0.35-0.55 0.15-0.25 4815 0.13-0.18 0.40-0.60 0.040 0.040 0.15-0.35 3.25-3.75 - 0.20-0.30 4817 0.15-0.20 0.40-0.60 0.040 0.040 0.15-0.35 3.25-3.75 - 0.20-0.30 4820 0.18-0.23 0.50-0.70 0.040 0.040 0.15-0.35 3.25-3.75 - 0.20-0.30 5015 0.12-0.17 0.30-0.50 0.040 0.040 0.15-0.35 - 0.30-0.50 - 5046 0.43-0.50 0.75-1.00 0.040 0.040 0.15-0.35 - 0.20-0.35 - 5115 0.13-0.18 0.70-0.90 0.040 0.040 0.15-0.35 - 0.70-0.90 - 5120 0.17-0.22 0.70-0.90 0.040 0.040 0.15-0.35 - 0.70-0.90 - 5130 0.28-0.33 0.70-0.90 0.040 0.040 0.15-0.35 - 0.80-1.10 - 5132 0.30-0.35 0.60-0.80 0.040 0.040 0.15-0.35 - 0.75-1.00 - 5135 0.33-0.38 0.60-0.80 0.040 0.040 0.15-0.35 - 0.70-0.90 - 5140 0.38-0.43 0.70-0.90 0.040 0.040 0.15-0.35 - 0.70-0.90 - 5145 0.43-0.48 0.70-0.90 0.040 0.040 0.15-0.35 - 0.70-0.90 - 5147 0.45-0.52 0.70-0.95 0.040 0.040 0.15-0.35 - 0.85-1.15 - 5150 0.48-0.53 0.70-0.90 0.040 0.040 0.15-0.35 - 0.70-0.90 - 5155 0.50-0.60 0.70-0.90 0.040 0.040 0.15-0.35 - 0.70-0.90 - 5160 0.55-0.65 0.75-1.00 0.040 0.040 0.15-0.35 - 0.70-0.90 - E50100 0.95-1.10 0.25-0.45 0.025 0.025 0.15-0.35 - 0.40-0.60 - E51100 0.95-1.10 0.25-0.45 0.025 0.025 0.15-0.35 - 0.90-1.15 - E52100 0.95-1.10 0.25-0.45 0.025 0.025 0.15-0.35 - 1.30-1.60 - Vanadium 6118 0.16-0.21 0.50-0.70 0.040 0.040 0.15-0.35 - 0.50-0.70 0.10-0.15 6120 0.17-0.22 0.70-0.90 0.040 0.040 - 0.70-0.90 0.10 min 6150 0.48-0.53 0.48-0.53 0.040 0.040 - 0.80-1.10 0.15 min Aluminum Molybdenum E7140 0.38-0.43 0.50-0.70 0.025 0.025 0.15-0.40 0.95-1.30 1.40-1.80 0.30-0.40 Nickel 8115 0.13-0.18 0.70-0.90 0.040 0.040 0.15-0.35 0.20-0.40 0.30-0.50 0.08-0.15 8615 0.13-0.18 0.70-0.90 0.040 0.040 0.15-0.35 0.40-0.70 0.40-0.60 0.15-0.25 8617 0.15-0.20 0.70-0.90 0.040 0.040 0.15-0.35 0.40-0.70 0.40-0.60 0.15-0.25 8620 0.18-0.23 0.70-0.90 0.040 0.040 0.15-0.35 0.40-0.70 0.40-0.60 0.15-0.25 8622 0.20-0.25 0.70-0.90 0.040 0.040 0.15-0.35 0.40-0.70 0.40-0.60 0.15-0.25 8625 0.23-0.28 0.70-0.90 0.040 0.040 0.15-0.35 0.40-0.70 0.40-0.60 0.15-0.25 8627 0.25-0.30 0.70-0.90 0.040 0.040 0.15-0.35 0.40-0.70 0.40-0.60 0.15-0.25 8630 0.28-0.33 0.70-0.90 0.040 0.040 0.15-0.35 0.40-0.70 0.40-0.60 0.15-0.25 8637 0.35-0.40 0.75-1.00 0.040 0.040 0.15-0.35 0.40-0.70 0.40-0.60 0.15-0.25 8640 0.38-0.43 0.75-1.00 0.040 0.040 0.15-0.35 0.40-0.70 0.40-0.60 0.15-0.25 8642 0.40-0.45 0.75-1.00 0.040 0.040 0.15-0.35 0.40-0.70 0.40-0.60 0.15-0.25 8645 0.43-0.48 0.75-1.00 0.040 0.040 0.15-0.35 0.40-0.70 0.40-0.60 0.15-0.25 8650 0.48-0.53 0.75-1.00 0.040 0.040 0.15-0.35 0.40-0.70 0.40-0.60 0.15-0.25 8655 0.50-0.60 0.75-1.00 0.040 0.040 0.15-0.35 0.40-0.70 0.40-0.60 0.15-0.25 8660 0.55-0.65 0.75-1.00 0.040 0.040 0.15-0.35 0.40-0.70 0.40-0.60 0.15-0.25 8720 0.18-0.23 0.70-0.90 0.040 0.040 0.15-0.35 0.40-0.70 0.40-0.60 0.20-0.30 8735 0.33-0.38 0.75-1.00 0.040 0.040 0.15-0.35 0.40-0.70 0.40-0.60 0.20-0.30 8740 0.38-0.43 0.75-1.00 0.040 0.040 0.15-0.35 0.40-0.70 0.40-0.60 0.20-0.30 8742 0.40-0.45 0.75-1.00 0.040 0.040 0.15-0.35 0.40-0.70 0.40-0.60 0.20-0.30 8822 0.20-0.25 0.75-1.00 0.040 0.040 0.15-0.35 0.40-0.70 0.40-0.60 0.20-0.30 9255 0.50-0.60 0.70-0.95 0.040 0.040 1.80-2.20 - - - 9260 0.55-0.65 0.70-1.00 0.040 0.040 1.80-2.20 - - - 9262 0.55-0.65 0.75-1.00 0.040 0.040 1.80-2.20 - 0.25-0.40 - E9310 0.08-0.13 0.45-0.65 0.025 0.025 0.15-0.35 3.00-3.50 1.00-1.40 0.08-0.15 9840 0.38-0.43 0.70-0.90 0.040 0.040 0.15-0.35 0.85-1.15 0.70-0.90 0.20-0.30 9850 0.48-0.53 0.70-0.90 0.040 0.040 0.15-0.35 0.85-1.15 0.70-0.90 0.20-0.30 50B40 0.38-0.42 0.75-1.00 0.040 0.040 0.15-0.35 - 0.40-0.60 - 50B44 0.43-0.48 0.75-1.00 0.040 0.040 0.15-0.35 - 0.40-0.60 - 50B46 0.43-0.50 0.75-1.00 0.040 0.040 0.15-0.35 - 0.20-0.35 - 50B50 0.48-0.53 0.74-1.00 0.040 0.040 0.15-0.35 - 0.40-0.60 - 50B60 0.55-0.65 0.75-1.00 0.040 0.040 0.15-0.35 - 0.40-0.60 - 51B60 0.55-0.65 0.75-1.00 0.040 0.040 0.15-0.35 - 0.70-0.90 - 81B45 0.43-0.48 0.75-1.00 0.040 0.040 0.15-0.35 0.20-0.40 0.35-0.55 0.08-0.15 86B45 0.43-0.48 0.75-1.00 0.040 0.040 0.15-0.35 0.40-0.70 0.40-0.60 0.15-0.25 94B15 0.13-0.18 0.75-1.00 0.040 0.040 0.15-0.35 0.30-0.60 0.30-0.50 0.08-0.15 94B17 0.15-0.20 0.75-1.00 0.040 0.040 0.15-0.35 0.30-0.60 0.30-0.50 0.08-0.15 94B30 0.28-0.33 0.75-1.00 0.040 0.040 0.15-0.35 0.30-0.60 0.30-0.50 0.08-0.15 94B40 0.38-0.43 0.75-1.00 0.040 0.040 0.15-0.35 0.30-0.60 0.30-0.50 0.08-0.15 Chemical Requirements of Resulfurized and/or Rephosphorized, Carbon Steels Grade Designation Chemical Composition Limits, % Carbon Manganese Phosphorous Sulfur Lead 1118 0.14-0.20 1.30-1.60 0.040 max 0.08-0.13 11L18 0.14-0.20 1.30-1.60 0.040 max 0.08-0.13 0.15-.035 1132 0.27-0.34 1.35-1.65 0.040 max 0.08-0.13 1137 0.32-0.39 1.35-1.65 0.040 max 0.08-0.13 1141 0.37-0.45 1.35-1.65 0.040 max 0.08-0.13 1144 0.40-0.48 1.35-1.65 0.040 max 0.24-0.33 1213 0.13 max 0.70-1.10 0.07-0.12 0.24-0.33 12L14 0.15 max 0.85-1.15 0.04-0.09 0.26-0.35 0.15-.035 1215 0.09 max 0.75-1.05 0.04-0.09 0.26-0.35 Outside Diameter Tolerances for Round Hot-Finished Tubing Outside Diameter Size Range, in.(mm) Outside Diameter Tolerance, in. (mm) Over Under Up to 2.999 (76.17) 0.020 (0.51) 0.020 (0.51) 3.000-4.499 (76.20-114.27) 0.025 (0.64) 0.025 (0.64) 4.500-5.99 (114.30-152.37) 0.031 (0.79) 0.031 (0.79) 6.000-7.499 (152.40-190.47) 0.037 (0.94) 0.037 (0.94) 7.500-8.999 (190.50-228) 0.045 (1.14) 0.045 (1.14) 9.000-10.750 (228.60-273.05) 0.050 (1.27) 0.050 (1.27) Outside and Inside Diameter Tolerances for Round Cold-Worked Tubing Outside Diameter Size Range, in. Thermal Treatment after Final Cold Work Producing Size Wall Thickness as Percent of Outside Diameter None, or not exceeding 1100°F Nominal Temperature Heated Above 1100°F Nominal Temperature Without Accelerated Cooling Quenched and Tempered OD, in. ID, in. OD, in. ID, in. OD, in. ID, in. Over Under Over Under Over Under Over Under Over Under Over Under Up to 0.499 all 0.004 0.000 -- -- 0.005 0.002 -- -- 0.010 0.010 0.010 0.010 0.500 - 1,699 all 0.005 0.000 0.000 0.005 0.007 0.002 0.002 0.007 0.015 0.015 0.015 0.015 1,700 - 2,099 all 0.006 0.000 0.000 0.006 0.006 0.005 0.005 0.006 0.020 0.020 0.020 0.020 2,100 - 2,499 all 0.007 0.000 0.000 0.007 0.008 0.005 0.005 0.008 0.023 0.023 0.023 0.023 2,500 - 2,899 all 0.008 0.000 0.000 0.008 0.009 0.005 0.005 0.009 0.025 0.025 0.025 0.025 2,900 - 3,299 all 0.009 0.000 0.000 0.009 0.011 0.005 0.005 0.011 0.028 0.028 0.028 0.028 3,300 - 3,699 all 0.010 0.000 0.000 0.010 0.013 0.005 0.005 0.013 0.030 0.030 0.030 0.030 3,700 - 4,099 all 0.011 0.000 0.000 0.011 0.013 0.007 0.010 0.010 0.033 0.033 0.033 0.033 4,100 - 4,499 all 0.012 0.000 0.000 0.012 0.014 0.007 0.011 0.011 0.036 0.036 0.036 0.036 4,500 - 4,899 all 0.013 0.000 0.000 0.013 0.016 0.007 0.012 0.012 0.038 0.038 0.038 0.038 4,900 - 5,299 all 0.014 0.000 0.000 0.014 0.018 0.007 0.013 0.013 0.041 0.041 0.041 0.041 5,300 - 5,549 all 0.015 0.000 0.000 0.015 0.020 0.007 0.014 0.014 0.044 0.044 0.044 0.044 5,550 - 5,559 under 6 0.010 0.010 0.010 0.010 0.018 0.018 0.018 0.018 6 to 7 1/2 0.09 0.09 0.009 0.009 0.016 0.016 0.016 0.016 over 7 1/2 0.018 0.000 0.009 0.009 0.017 0.015 0.016 0.016 6,000 - 6,499 under 6 0.013 0.013 0.013 0.013 0.023 0.023 0.023 0.023 6 to 7 1/2 0.010 0.010 0.010 0.010 0.018 0.018 0.018 0.018 over 7 1/2 0.020 0.000 0.010 0.010 0.020 0.015 0.018 0.018 6,500 - 6,999 under 6 0.015 0.015 0.015 0.015 0.027 0.027 0.027 0.027 6 to 7 1/2 0.012 0.012 0.012 0.012 0.021 0.021 0.021 0.021 over 7 1/2 0.023 0.000 0.012 0.012 0.026 0.015 0.021 0.021 7,000 - 7,499 under 6 0.018 0.018 0.018 0.018 0.032 0.032 0.032 0.032 6 to 7 1/2 0.013 0.013 0.013 0.013 0.023 0.023 0.023 0.023 over 7 1/2 0.026 0.000 0.013 0.013 0.031 0.015 0.023 0.023 7,500 - 7,999 under 6 0.020 0.020 0.020 0.020 0.035 0.035 0.035 0.035 6 to 7 1/2 0.015 0.015 0.015 0.015 0.026 0.026 0.026 0.026 over 7 1/2 0.029 0.000 0.015 0.015 0.036 0.015 0.026 0.026 8,000 - 8,499 under 6 0.023 0.023 0.023 0.023 0.041 0.041 0.041 0.041 6 to 7 1/2 0.016 0.016 0.016 0.016 0.028 0.028 0.028 0.028 over 7 1/2 0.031 0.000 0.015 0.016 0.033 0.022 0.028 0.028 8,500 - 8,999 under 6 0.025 0.025 0.025 0.025 0.044 0.044 0.044 0.044 6 to 7 1/2 0.017 0.017 0.017 0.017 0.030 0.030 0.030 0.030 over 7 1/2 0.034 0.000 0.015 0.019 0.038 0.022 0.030 0.030 9,000 - 9,499 under 6 0.028 0.028 0.028 0.028 0.045 0.045 0.049 0.049 6 to 7 1/2 0.019 0.019 0.019 0.019 0.033 0.033 0.033 0.033 over 7 1/2 0.037 0.000 0.015 0.022 0.043 0.022 0.033 0.033 9,500 - 9,999 under 6 0.030 0.030 0.030 0.030 0.045 0.045 0.053 0.053 6 to 7 1/2 0.020 0.020 0.020 0.020 0.035 0.035 0.035 0.035 over 7 1/2 0.040 0.000 0.015 0.025 0.048 0.022 0.035 0.035 10,000 - 10,999 under 6 0.034 0.034 0.034 0.034 0.045 0.045 0.060 0.060 6 to 7 1/2 0.022 0.022 0.022 0.022 0.039 0.039 0.039 0.039 over 7 1/2 0.044 0.000 0.015 0.029 0.055 0.022 0.039 0.039 11,000 - 12,000 under 6 0.035 0.035 0.035 0.035 0.050 0.050 0.065 0.065 6 to 7 1/2 0.025 0.025 0.025 0.025 0.045 0.045 0.045 0.045 over 7 1/2 0.045 0.000 0.015 0.035 0.060 0.022 0.045 0.045 Contact Totten Tubes for A519 Seamless Mechanical Steel Tubing Today Contact us for more information regarding ASTM A 519 seamless mechanical steel mechanical tubing specifications and product options, or request a quote for further pricing details today. 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