ASTM A519 Seamless Mechanical Steel Tubing

Home > Spec Sheets > ASTM A519 Specification

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 a quote or contact Totten Tubes for more information on A519 mechanical steel tubing.

Aspects of the ASTM A519 specification that are most relevant here include:

ASTM A519 Steel Tube Materials & Manufacturing

Steel used to produce A519 steel tube may be made by any process. If you require a specified type of melting, please note this in your Request for Quote or when ordering. A519 tubes must be made in a seamless process and either hot finished or cold finished, as specified.

Chemical Requirements for ASTM A519 Seamless Steel Tubing

For Low-Carbon Steels

Chemical Requirements of Low-Carbon Steel
Grade Designation	Chemical Composition Limits, %
Grade Designation	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, %
Grade Designation	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, %
Grade Designation	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, %
Grade Designation	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)
Outside Diameter Size Range, 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.