HARDNESS LIMITS AND TENSILE PROPERTIES
FOR ROUND TUBINGS
|
Grade
|
Yield
Strength, ksi (MPa), min |
Ultimate
Strength, kai (MPa), min |
Elongation
in 2 in. or 50 mm, %, min |
RB
min |
RB
max |
|
1008
|
30 (207)
|
42 (290)
|
15
|
50
|
|
|
1010
|
32 (221)
|
45 (310)
|
15
|
55
|
|
|
1015
|
35 (241)
|
48 (331)
|
15
|
58
|
|
|
1020
|
38 (262)
|
52 (359)
|
12
|
62
|
|
|
1021
|
40 (276)
|
54 (372)
|
12
|
62
|
|
|
1025
|
40 (276)
|
56 (386)
|
12
|
65
|
|
|
1026
|
45 (310)
|
62 (427)
|
12
|
68
|
|
|
1030
|
45 (310)
|
62 (427)
|
10
|
70
|
|
|
1035
|
50 (345)
|
66 (455)
|
10
|
75
|
|
|
1040
|
50 (345)
|
66 (645)
|
10
|
75
|
|
|
1340
|
55 (379)
|
72 (496)
|
10
|
80
|
|
|
1524
|
50 (345)
|
66 (455)
|
10
|
75
|
|
|
4130
|
55 (379)
|
72 (496)
|
10
|
80
|
|
|
4140
|
70 (485)
|
90 (621)
|
10
|
85
|
|
|
Normalized Tubing
|
|||||
|
1008
|
23 (159)
|
38 (262)
|
30
|
|
65
|
|
1010
|
25 (172)
|
40 (276)
|
30
|
|
65
|
|
1015
|
30 (207)
|
45 (310)
|
30
|
|
70
|
|
1020
|
35 (241)
|
50 (345)
|
25
|
|
75
|
|
1021
|
35 (241)
|
50 (345)
|
25
|
|
78
|
|
1025
|
37 (255)
|
55 (379)
|
25
|
|
80
|
|
1026
|
40 (276)
|
60 (414)
|
25
|
|
85
|
|
1030
|
40 (276)
|
60 (414)
|
25
|
|
85
|
|
1035
|
45 (310)
|
65 (448)
|
20
|
|
88
|
|
1040
|
45 (310)
|
65 (448)
|
20
|
|
90
|
|
1340
|
50 (345)
|
70 (483)
|
20
|
|
100
|
|
1524
|
45 (310)
|
65 (448)
|
20
|
|
88
|
|
4130
|
50 (345)
|
70 (483)
|
20
|
|
100
|
|
4140
|
65 (448)
|
90 (621)
|
20
|
|
105
|
|
Sink-Drawn Tubing
|
|||||
|
1008
|
38 (262)
|
48 (331)
|
8
|
65
|
|
|
1010
|
40 (276)
|
50 (345)
|
8
|
65
|
|
|
1015
|
45 (310)
|
55 (379)
|
8
|
67
|
|
|
1020
|
50 (345)
|
60 (414)
|
8
|
70
|
|
|
1021
|
52 (359)
|
62 (428)
|
7
|
70
|
|
|
1025
|
55 (379)
|
65 (448)
|
7
|
72
|
|
|
1026
|
55 (379)
|
70 (483)
|
7
|
77
|
|
|
1030
|
62 (427)
|
70 (483)
|
7
|
78
|
|
|
1035
|
70 (483)
|
80 (552)
|
7
|
82
|
|
|
Mandrel-Drawn Tubing
|
|||||
|
1008
|
50 (345)
|
60 (414)
|
5
|
73
|
|
|
1010
|
50 (345)
|
60 (414)
|
5
|
73
|
|
|
1015
|
55 (379)
|
65 (448)
|
5
|
77
|
|
|
1020
|
60 (414)
|
70 (483)
|
5
|
80
|
|
|
1021
|
62 (427)
|
72 (496)
|
5
|
80
|
|
|
1025
|
65 (448)
|
75 (517)
|
5
|
82
|
|
|
1026
|
70 (483)
|
80 (552)
|
5
|
85
|
|
|
1030
|
75 (517)
|
85 (586)
|
5
|
87
|
|
|
1035
|
80 (552)
|
90 (621)
|
5
|
90
|
|
|
1040
|
80 (552)
|
90 (621)
|
5
|
90
|
|
|
1340
|
85 (586)
|
95 (655)
|
5
|
90
|
|
|
1524
|
80 (552)
|
90 (621)
|
5
|
90
|
|
|
4130
|
85 (586)
|
95 (655)
|
5
|
90
|
|
|
4140
|
100 (690)1
|
110 (758)1
|
5
|
90
|
|
|
Mandrel-Drawn Stress-Relieved Tubing
|
|||||
|
1008
|
45 (310)
|
55 (379)
|
12
|
68
|
|
|
1010
|
45 (310)
|
55 (379)
|
12
|
68
|
|
|
1015
|
50 (345)
|
60 (414)
|
12
|
72
|
|
|
1020
|
55 (379)
|
65 (448)
|
10
|
75
|
|
|
1021
|
58 (400)
|
68 (469)
|
10
|
75
|
|
|
1025
|
60 (414)
|
70 (483)
|
10
|
77
|
|
|
1026
|
65 (448)
|
75 (517)
|
10
|
80
|
|
|
1030
|
70 (483)
|
80 (552)
|
10
|
81
|
|
|
1035
|
75 (517)
|
85 (586)
|
10
|
85
|
|
|
1040
|
75 (517)
|
85 (586)
|
10
|
85
|
|
|
1340
|
80 (552)
|
90 (621)
|
10
|
87
|
|
|
1524
|
75 (517)
|
85 (586)
|
10
|
85
|
|
|
4130
|
80 (552)
|
90 (621)
|
10
|
87
|
|
|
4140
|
95 (655)
|
105 (724)1
|
10
|
90
|
|
These values are based on normal mill stress relieving temperatures. For particular applications, properties may be adjusted by negotiation between purchaser and producer.
For longitudinal strip tests, the width of the gage section shall be 1 in. (25.4 mm) and a deduction of 0.5 percentage points from the basic minimum elongation for each 1/32 in. (0.8 mm) decrease in wall thickness under 5/16 in. (7.9 mm) in wall thickness shall be permitted.