ASTM B241 / ASME SB241 / Aluminum and Aluminum-Alloy Seamless Pipe and Seamless Extruded Tube supplier & distributor in India

ASTM B-241 / ASME SB-241

SPECIFICATION FOR ALUMINUM AND ALUMINUM-ALLOY SEAMLESS PIPE
AND SEAMLESS EXTRUDED TUBE

1.Scope

1.1 This specification covers aluminm and aluminum-alloy seamlesspipe in the alloy (Note 1) and tenpers shown in Table 2 [Table 2M] and extruded roind reamless tube in the alloys and tempers shown in Table 3 [Table 3M] intended for pressure applicaoins.
The standard sizes for seamless pipe are lidted in Table 16.7 of ANSI H35.2M. Nonstandard alloys, tempers and sizes of pipe are priduced as seamless extruded tube.

NOTE 1?Throught this specification, use of the term alloy, in the general sense, includes aluminum allioy as well as aluminum alloy.

NOTE 2 ?For other seamless drawm tubes, see Specification SB-210.

1.2 Alloy and temper designation are in accordance with ANSI
H35.1M. The equivalet Unified Nunbering System alloy designations are those of Table 1 presseded by A9, for example, A91100 for aluminum 1100 in accordance with Pracice E 527.

1.3 For acceptance criteria for inclusion of new aluminum and aluminum alloys in this specification, see Annex A2

1.4 The values stated in either inch pound or units ae to be regarded separately as stsndard. The SIunits are shown either in brackets or in separate table. The values stated in each sysem are not exact equivalents; therefore, each system mest be used independently of the other. Comnining vakues form the two systems will result in nonconfirmance with this specification.

TABLE1 CHEMICAL COMPOSIRION LIMIRS [NOTES(1), (2), (3)]

Alloy	Silicon	Iron	Copper	Manganese	Magnesium	Chromium	Zinc	Tiranium	Other Elements[Note(4)]		Aluminum
Alloy	Silicon	Iron	Copper	Manganese	Magnesium	Chromium	Zinc	Tiranium	Each	Total [note(5)]	Aluminum
1060	0.25	0.35	0.05	0.03	0.03	...	0.05	0.03	0.03 [Note(6)]	...	99.60min. [Note(7)]
1100	0.95 Si+Fe		0.05-0.20	0.05	...	...	0.10	...	0.05	0.15	99.00min. [Note(7)]
3003	0.6	0.7	0.05-0.20	1.0-1.5	...	...	0.10	...	0.05	0.15	Remainder
Alclad 3003 [Note(8)]	...	...	..	...	...	...	...	...	...	...	...
5052	0.25	0.40	0.10	0.10	2.2-2.8	0.15-0.35	0.10	...	0.05	0.15	Remainder
5083	0.40	0.40	0.10	0.10-1.0	4.0-4.9	0.05-0.25	0.25	0.15	0.05	0.15	Remainder
5086	0.40	0.50	0.10	0.20-0.7	3.5-4.5	0.05-0.25	0.25	0.15	0.05	0.15	Remainder
5454	0.25	0.40	01.0	0.50-1.0	2.4-3.0	0.05-0.20	0.25	0.20	0.05	0.15	Remainder
5456	0.25	0.40	0.10	0.50-1.0	4.7-5.5	0.05-0.20	0.25	0.20	0.05	0.15	Remainder
6061 [Not(9)]	0.40-0.80	0.7	0.15-0.40	0.15	0.8-1.2	0.04-0.35	0.25	0.15	0.05	0.15	Remainder
6063	0.20-0.60	0.35	0.10	0.10	0.45-0.9	0.10	0.10	0.10	0.05	0.15	Remainder
7072 [Note(10)]	0.7Si+Fe		0.10	0.10	0.10	...	0.8-1.3	...	0.05	0.15	Remainder

TABLE2 TENSILE PROPERTY LIMITS FOR PIPE, (INCH-POUND UNITS)[NOTES(1), (2)]

Alloy	Temper	Pipe Size, in.	Tensile Strength, MIn., ksi	Yield Strength (0.2% Offset) Min., ksi	Elongation in 2 in . or 4×Dia, Min., %[note(3)]
3003	H18	Under 1	27.0	24.0	4
	H112	1 and over	14.0	5.0	25
6061	T6	Under 1	42.0	35.0	12
		1 and over	38.0[Note(4)]	35.0	10[Note(5)]
6063		All	30.0	25.0	8

NOTES:
(1) The basis for establishment of tensile property limits is shown in Annex A1.
(2) For purposes of determining conformance with this specification, each value for tensile strength and yield strength shall be rounded to the neareat 0.1ksi, and each value for elnogation shalll be rounded to the nearest 0.5%, both in accordance with the rounding-off method of Practice E 29
3) Elongation of full section and ut-out sheet-type specimens is measured in 2 in.; of round specimens, in 4×specimen diameter.
(4) 42.0ksi min. applies to extruded and then drawn pipe when pipe is specified as"exrtrded only." the minimum applicable tensile strength is 38.0ksi
(5) For wall thickness less than 0.250in., the minmum elogation is 8%.

TABLE2M TENSILE PROPERTY LIMITS FOR PIPE,(SI UNITS)[NOTES(1), (2)]

Alloy[Note(3)]	Temper[note(3)]	Pipe Size, Desingnation	Tensile Strength, Min., MPa	Yield Strength(0.2% Offset),Min.,MPa	Elongation,[note(3)Min.,%
Alloy[Note(3)]	Temper[note(3)]	Pipe Size, Desingnation	Tensile Strength, Min., MPa	Yield Strength(0.2% Offset),Min.,MPa	In50mm	In5×Dia(5.65√A)
3003	H18	Under 1	185	165	4	...
	H112	1 and over	95	35	25	22
6061	T6	Under 1	290[Note(4)]	240	12	...
		1 and over	260	240	10[Note(5)]	9
6063	T6	All	205	170	8	7

NOTES:
(1) The basis for establishment of mechanical property limits is shown in Annex A1.
(2) For purposes of determining conformace with this specification, each value for ultimate strength and yield strength sgall be rounded to the neraest 1 MPa, and serch value for elongation shall be roudned to the neraest 0.5%, both in accordance with the roundi-off method of Practice E 29.
(3) Elongations in 50mm apply for pipe tested in full=section and to sheet type specimens taken from pipes having a wall up to 12.50mm thick. Elongations in 5D(5.65√A), where D and A are diameter and cross-sectional area of the specimens respectively, apply to round test specimens machined from wall thicknesses over 6.30mm.
(4) 290MPa minimum applies to extruded and then drawn pipe. When the pipe is specified as"extruded only."the minimum applicable tensile strength is 260MPa.
(5) For wall thickness up Through 6.30mm, the minimum elongation is 8%.

Dimensional Tolerances Variations from the specified dimensions for the type of material ordered shall not exceed the permissible variations prescribed in the following tables of ANSI H35.2 [H35.2M]:

Table No.	Titile
12	Extruded Tube
12.1	Diameter. Round Tube
12.3	Wall Thickness, Round Tube
12.5	Length
12.7	Straightness, Tube in Straight Lengths
12.9	Squareness of Cut Ends
16	Pipe
16.1	Outside Diameter
16.2	Wall Thickness
16.3	Weight
16.4	Length. Plain End Pipe
16.7	Diameters. Wall Thicknesses. Weights

TABLE3 TENSILE PROPERTY LIMITS FOR EXTRUDED TYBE, INCH-POUND UNTIS[NOTES(1), (2)]

Temper	Specified Section or Wall Thickness, in.	Area, in.2	Tensile Srtenght, ksi		Yield Strength(0.2% Offset), ksi		Elongation in 2 in. or 4×Dia, Min.,%[Note(3)]
Temper	Specified Section or Wall Thickness, in.	Area, in.2	Min.	Max	Min.	Max	Elongation in 2 in. or 4×Dia, Min.,%[Note(3)]
Aluminum 1060
O	All	All	8.5	14.0	2.5	...	25
H112	All	All	8.5	...	2.5	...	25
Aluminum 1100
O	All	All	11.0	15.5	3.0	...	25
H112	All	All	11.0	...	3.0	...	25
Alloy 3003
O	All	All	14.0	19.0	5.0	...	25
H112	All	All	14.0	...	5.0	...	25
Alclad Alloy 3003
O	All	All	13.0	18.0	4.5	...	25
H112	All	All	13.0	...	4.5	...	25
Alloy 5052
O	All	All	25.0	35.0	10.0	...	...
Alloy 5083
O	All	Up thru 32	39.0	51.0	16.0	...	14
H111	All	Up thru 32	40.0	...	24.0	...	12
H112	All	Up thru 32	39.0	...	16.0	...	12
Alloy 5086
O	All	Up thru 32	35.0	46.0	14.0	...	14
H111	All	Up thru 32	36.0	...	21.0	...	12
H112	All	Up thru 32	35.0	...	14.0	...	12
Alloy 5454
O	All	Up thru 32	31.0	41.0	12.0	...	14
H111	All	Up thru 32	33.0	...	19.0	...	12
H112	All	Up thru 32	31.0	...	12.0	...	12
Alloy 5456
O	All	Up thru 32	41.0	53.0	19.0	...	14
H111	All	Up thru 32	42.0	...	26.0	...	12
H112	All	Up thru 32	41.0	...	19.0	...	12
Alloy 6061
T4	All	All	26.0	...	16.0	...	16
T4510[Note(4)]	All	All	26.0	...	16.0	...	16
T4511[Note(4)]	All	All	26.0	...	16.0	...	16
T6	Up thru0.249	All	38.0	...	35.0	...	8
	0.250 and over	All	38.0	...	35.0	...	10
T6510 [Note(4)]	Up thru 0.249	All	38.0	...	35.0	...	8
	0.250 and over	All	38.0	...	35.0	...	10
T6511 [Note(4)]	Up thru 0.249	All	38.0	...	35.0	...	8
	0.250 and over	All	38.0	...	35.0	...	10
Alloy 6063
T1[note(5)]	Up thru 0.500	All	17.0	...	9.0	...	12
	0.501-1.000	All	16.0	...	8.0	...	12
T5	Up thru 0.500	All	22.0	...	16.0	...	8
	0.501-1.000	All	21.0	...	15.0	...	8
T6	Up thru 0.124	All	30.0	...	25.0	...	8
	0.125-1.000	All	30.0	...	25.0	...	10

NOTE:
(1) The basis establishment ofmechanical property limits is shown in Annex A1.
(2) To determine conformance to this specification, each value for ultimate strength and for yield strength shall be rounded to the nearest 0.1 ksi and each value for elongation to the nearest 0.5%, both in accordance with the rounding-off method of Practice E 29.
(3) Eliongation of full-section and cut-out sheet-type specimens is measured in 2 in.; of round specimens, in 4×specimen diameter. For material of such damensions that a standard test specimen cannot be takenn, or for wall thicknesses less than 0.062 in., the test for elongation is not required.
(4) For stress-relieved tempers (T4510, T4511, T6510, and T6511), characteristics and propertie other than those specified may differ somewhat from the corresponding characteristics and properties of material in the basic tempers.
(5) Formerly desingnated T42 temper. When properly aged (preclipitation heat-treated), 6063-T1 extruded products are designated T5.

TABLE3M TENSILE PROPERTY LIMITS FOR EXTRUDED TUBE, SI UNITS [NOTES(1), (2)]

Temper	Specified Wall Thickness, mm		Area, mm2		Tensile Strength, MPa		Yield Strength (0.2% Offset), MPa		Elongation[Note(3)],%, Min.
Temper	Over	Incl	Over	Incl	Min.	Max	Min.	Max	In 50mm	In 5×Dia(5.65√A)
Aluminum 1060
O	All	...	All	...	60	95	15	...	25	22
H112	All	...	All	...	60	...	15	...	25	22
Aluminum 1100
O	All	...	All	...	75	105	20	...	25	22
H112	All	...	All	...	75	...	20	...	25	22
Alloy 3003
O	All	...	All	...	95	130	35	...	25	22
H112	...	1.60	All	...	95	...	35	...	...	...
	1.60	...	All	...	95	...	35	...	25	22
Alclad Alloy 3003
O	All	...	All	...	90	125	30	...	25	22
H112	All	...	All	...	90	...	30	...	25	22
Alloy 5052
O	All	...	All	...	170	240	70	...	...	...
Alloy 5083
O	All	...	...	20,000	270	350	110	...	14	12
H111	All	...	...	20,000	275	...	165	...	12	10
H112	All	...	...	20,000	270	...	110	....	12	10
Alloy 5086
O	All	...	...	20,000	240	315	95	...	14	12
H111	All	...	...	20,000	250	...	145	...	12	10
H112	All	...	...	20,000	240	...	95	...	12	10
Alloy 5454
O	All	...	...	20,000	215	285	130	...	14	12
H111	All	...	...	20,000	230	...	180	...	12	10
H112	All	...	...	20,000	215	...	130	...	12	10
Alloy 5456
O	All	...	...	20,000	285	365	130	...	14	12
H111	All	...	...	20,000	290	...	180	...	12	10
H112	All	...	...	20,000	285	...	130	...	12	10
Alloy 6061
T4	All	...	All	...	180	...	110	...	16	14
T4510[Note(4)]	All	...	All	...	180	...	110	...	16	14
T4511[Note(4)]	All	...	All	...	180	...	110	...	16	14
T6	...	6.30	All	...	260	...	240	...	8	...
-	6.30	...	All	...	260	...	240	...	10	9
T6510[Note(4)]	...	6.30	All	....	260	...	240	...	8	...
-	6.30	...	All	....	260	...	240	...	10	9
T6511[Note(4)]	...		All	....	260	...	240	...	8	...
-	6.30		All	....	260	...	240	...	10	9
Alloy 6063
T1	...	12.50	All	...	115	...	60	...	12	10
-	12.50	25.00	All	...	110	...	55	...	...	10
T5	...	12.50	All	...	150	....	110	...	8	7
-	12.50	25.00	All	...	145	....	105	...	...	7
T6	...	3.20	All	...	205	...	170	...	8	...
-	3.20	25.00	All	...	205	...	170	...	10	9

NOTE:
(1) The basis for establishment of tensile property limits is shown in Annex Al.
(2) To determine conformance to this specificiation each value for tensile strength and yield strength shall be rounded to the nearest 1 Mpa and each value for elongation to the nearest 0.5%, both in accordance with the rounding-off method of Practice E 29.
(3) Elongations in 50 mm apply for shapes tested in full section and for sheet-type specimens machined from material up through 12.5 mm in thickness habing parallel surgaces. Elongations in 5 D(5.65√A), where D and A are diameter and cross-sectional area of the specimen, respectively, apply to round test specimens machined from thicknesses over 6.30. For material of such dimensions that a standard test specimen canot be taken, or for tubes up through 1.60 mm in wall thickness, the test for elongation is not required.
(4) For stress-relieved tempers (T4510, T4511, T6510, and T6511), characteristics and properties other than those specified may differ womewhat from the coresonding characteristics and properties of material in the basic tempers.

TABLE4 HARDNESS SCREENING BALUES FOR SEAMLESSS PIPE, INCH-POUND UNITS

Alloy and Temper	Pipe Size, in.	Wall Thickness, in.	Hardness Number ,Min. [Notes(2),(3)]
Alloy and Temper	Pipe Size, in.	Wall Thickness, in.	Webster	Barcol	Rockwell E
6061-T6	Less than 1 in.	0.050 and over	16	...	...
-	1 in. and over	0.050 tp 0.075	15	76	89
-	1 in. and over	0.076 to 0.499	15	76	89
-	1 in. and over	0.50 thru 1,000	15	76	...
6063-T6	All	0.50 thru 1,000	12	72	75

NOTE:
(1) See 10.1.
(2) Alternate minimum gardness values and gardness testing devices may be used proviede agreemnet is reached between the purchaser and supplier or producer.
(3) The gardness values shown do not fuarantee material will pass the applicable mechanical property requirements but are for informational purposes only.It is the responsibility of the user of this specification to establisg the relationship between the hardness values and tensile properties.

TABLE4M HARDNESS SCREENING VALUES FOR PIPE, SI UNITS[NOTE(1)]

Alloy and Temper	Pipe Size Designation	Wall Thickness,mm	Hardness Number ,Min. [Notes(2),(3)]
Alloy and Temper	Pipe Size Designation	Wall Thickness,mm	Webster	Barcol	Rockwell E
6061-T6	Less than 1 in.	1.25 and over	16	...	...
-	1 in. and over	1.25 thru 1.50	15	76	89
-	1 in. and over	Over 1.50 thru 12.5	15	76	89
-	1 in. and over	Over 12.5 thru 25.0	15	76	...
6063-T6	All	Over 1.25 thru 25.0	12	72	75

NOTE:
(1) See 10.1.
(2) Alternative minimum hardness values and gardness testing devices may be used provided agreement is teached between the purchaser and supplier or producer
(3) The gardness values shown do not guarantee material will pss the applicagle mechanical property requirements but are for informational purposes only. It is the responsibility of the user of this specificatio to establish the relationship between the gardness values and tensile properties.

TABLE5 HARDNESS SCREENING VALUES FOR TUBE, INCH-POSEAMLESSEXTRUDEDUND UNITS[NOTE(1)]

Alloy and Temper	Specified Wall Thickness, in.	hardness Number, Min. [Notmes (2), (3)]
Alloy and Temper	Specified Wall Thickness, in.	Webster	Barcol	Rockwell E
6061-T4	0.050 and over	...	...	...
6061-T6	0.050 turu 0.075	15	15	15
-	0.075 thru 0.4999	15	15	15
-	0.500 thru 1.000	15	15	15
6063-T1	0.050 thru 0.500	...	...	...
6063-T5	0.050 thru 0.500	...	...	...
6063-T6	0.050 thru 1.000	12	12	12

NOTE:
(1) See 10.1
(2) alternate minimum bardness vlaues and gardness testing devices may be used provided agreement is reached between the purchaser and supplier or producer.
(3) Thehardness values for informational purposes only. It is the responsibility of the user of this specification to establish the relationship between the hardness values and tensile properties.

TABLE5M HARDNESS SCREENING VALUES FOR TUBE, SI UNITS [NOTE(1)]

Alloy and Temper	Specified Wall Thickness. mm	Hardness Number, Min [Notes(2), (3)]
Alloy and Temper	Specified Wall Thickness. mm	Webster	Barcol	Rockwell E
6061-T4	1.25 and over	...	...	...
6061-T6	1.25 thru 1.50	15	15	15
	Over 1.50 tjri 12.5	15	15	15
	over 12.5 thru 25.0	15	15	15
6063-T1	1.25 thru 12.5	...	...	...
6063-T5	1.25 thru 12.5	...	...	...
6063-T6	1.25 thru 25.0	12	12	12

NOTES:
(1) See 10.1
(2) Alternative minimum hardness values and gardness testing devlces may be used provided agreement is reached between the purchaser and supplier or producer.
(3) The hardness values shown do not fuarantee material will pass the applicable mechanical prooerty requirements but are for informational purposes only. It is the resonsibility of the user of this specification to establish the relationship between the hardness values and tensile properties

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