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ASTM F2437-14
Standard Specification for Carbon and Alloy Steel Compressible-Washer-Type Direct Tension Indicators for Use with Cap Screws, Bolts, Anchors, and Studs
STANDARD published on 1.6.2014
The information about the standard:
Designation standards: ASTM F2437-14
Note: WITHDRAWN
Publication date standards: 1.6.2014
SKU: NS-53874
The number of pages: 6
Approximate weight : 18 g (0.04 lbs)
Country: American technical standard
Category: Technical standards ASTM
The category - similar standards:
Annotation of standard text ASTM F2437-14 :
Keywords:
compressible-washer-type, direct tension indicators, DTI, load indicators, load indicating washers, tension indicators, ICS Number Code 21.060.01 (Fasteners in general)
Additional information
| 1. Scope | ||||
|
1.1 This specification covers the requirements for carbon and alloy steel compressible-washer-type direct tension indicators capable of indicating a specified bolt tension in cap screws, bolts, anchors, and studs. 1.2 Direct tension indicators in nominal diameter sizes 1/4 through 21/2 in. are covered. 1.3 There are two Types of DTIs covered by this specification, Type 1 and Type 2. 1.3.1 Type 1 DTIs are suitable for comparatively large bearing surfaces. Type 1 DTIs are available in Grades 55 and 105, which differ in the amount of tension they indicate at a prescribed gap (see Table 1). DTI |
Mean Compression LoadB
Range |
Mean Compression LoadC
Range |
||
|
Grade 5 |
Grade 8 |
Grade 55 |
Grade 105 |
|
|
1/4 |
2200 to 2450 |
3100 to 3450 |
. . . |
. . . |
|
5/16 |
3500 to 3850 |
4950 to 5500 |
. . . |
. . . |
|
3/8 |
5300 to 5850 |
7500 to 8300 |
. . . |
. . . |
|
7/16 |
7200 to 7900 |
10 100 to 11 200 |
. . . |
. . . |
|
1/2 |
9700 to 10 700 |
13 700 to 15 340 |
4450 to 4900 |
8500 to 9400 |
|
9/16 |
12 350 to 13 600 |
17 400 to 19 200 |
5700 to 6300 |
10 900 to 12 050 |
|
5/8 |
15 550 to 17 200 |
21 850 to 24 200 |
7050 to 7800 |
13 500 to 15 000 |
|
3/4 |
22 600 to 25 000 |
31 900 to 35 300 |
10 500 to 11 600 |
20 000 to 22 150 |
|
7/8 |
30 850 to 34 100 |
43 550 to 48 100 |
14 500 to 16 000 |
27 650 to 30 550 |
|
1 |
40 200 to 44 400 |
56 700 to 62 700 |
19 000 to 21 000 |
36 250 to 40 100 |
|
11/8 |
40 250 to 44 450 |
73 150 to 80 900 |
23 950 to 26 450 |
47 300 to 52 300 |
|
11/4 |
51 100 to 56 450 |
91 750 to 101 450 |
30 400 to 33 600 |
59 850 to 66 150 |
|
13/8 |
61 150 to 67 600 |
112 450 to 124 250 |
38 550 to 42 600 |
73 800 to 81 600 |
|
11/2 |
74 350 to 82 150 |
135 150 to 149 400 |
44 050 to 48 700 |
89 300 to 98 700 |
|
15/8 |
. . . |
. . . |
55 800 to 61 700 |
106 200 to 117 400 |
|
13/4 |
74 450 to 82 300 |
177 850 to 196 500 |
59 550 to 65 850 |
124 600 to 137 750 |
|
17/8 |
... |
206 050 to 227 750 |
75 550 to 83 500 |
144 500 to 159 700 |
|
2 |
98 000 to 108 300 |
236 850 to 261 750 |
78 650 to 86 950 |
165 800 to 183 300 |
|
21/4 |
127 400 to 140 800 |
277 900 to 307 100 |
102 050 to 112 750 |
212 900 to 235 350 |
|
21/2 |
156 750 to 173 250 |
379 600 to 419 600 |
125 400 to 138 600 |
240 550 to 265 850 |
1.3.2 Type 2 DTIs are suitable for
comparatively smaller bearing surfaces.Type 2 DTIs are available in
Grades 5 and 8, which differ in the amount of tension they indicate
at a prescribed gap (see 1.4 Direct tension indicators are
intended for installation under a bolt or cap screw head, a hex
nut, or against a hardened washer or other flat hardened
surface.
1.5 The values stated in inch-pound units are to be regarded as standard. No other units of measurement are included in this standard.
1.6 The following precautionary
statement pertains only to the test method portions, Section
Standard Specification for Carbon Steel
Bolts, Studs, and Threaded Rod 60 000 PSI Tensile Strength Standard Specification for
Electrodeposited Coatings on Threaded Fasteners (Unified Inch Screw
Threads (UN/UNR)) Standard Specification for Quenched and
Tempered Alloy Steel Bolts, Studs, and Other Externally Threaded
Fasteners (Includes all amendments and changes 11/27/2018). Standard Specification for Hex Cap
Screws, Bolts and Studs, Steel, Heat Treated, 120/105/90 ksi
Minimum Tensile Strength, General Use Standard Specification for Carbon and
Alloy Steel Nuts Standard Specification for
Electrodeposited Coatings of Zinc on Iron and Steel Standard Specification for Coatings of
Zinc Mechanically Deposited on Iron and Steel Standard Specification for Hardened Steel
Washers Standard Test Methods for Determining the
Mechanical Properties of Externally and Internally Threaded
Fasteners, Washers, Direct Tension Indicators, and Rivets Standard Specification for Anchor Bolts,
Steel, 36, 55, and 105-ksi Yield Strength Standard Practice for Fastener Sampling
for Specified Mechanical Properties and Performance Inspection Standard Specification for Carbon Steel,
Alloy Steel, and Stainless Steel Nuts for Bolts for High Pressure
or High Temperature Service, or Both ASME B18.2.1 Square and Hex Bolts and Screws, Inch
Series Standard Specification for Structural
Bolts, Steel, Heat Treated, 120/105 ksi Minimum Tensile Strength
(Withdrawn 2016) Standard Specification for Alloy-Steel
and Stainless Steel Bolting for High Temperature or High Pressure
Service and Other Special Purpose Applications SAE J995 Mechanical and Material Requirements for
Steel Nuts SAE J429 Mechanical and Material Requirements for
Externally Threaded Fasteners ASME B18.2.8 Clearance Holes for Bolts Screws, and
Studs
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