Welded Master Links
A-344
A-347
• Alloy Steel - Quenched and Tempered.
• Individually Proof Tested to values shown, with certification.
• Proof Tested with fixture sized to prevent localized point loading per
ASTM A952. Consult Crosby for appropriate fixture size.
• Crosby A-344 products meet or exceed all requirements of ASME
B30.26 including identification, ductility, design factor, proof load and
temperature requirements. Importantly, Crosby products meet other
critical performance requirements including fatigue life, impact
properties and material traceability, not addressed by ASME B30.26.
• Meets the performance requirements of EN1677-4:2001
• Each link has a Product Identification Code (PIC) for material traceability, along with the size and the name Crosby® or "CG".
• Large inside width and length to allow additional room for sling
hardware and crane hook.
• Engineered Flat for use with S-1325A coupler link.
s k n i L
r e t s a M
d e d l e W
A-344
Welded Master Link with Engineered Flat
A-34
Size
(mm)
12
13
17
19
22
26
28
31
36
40
45
51
(in.)
7/16
1/2
11/16
3/4
7/8
1
1-1/8
1-1/4
1-3/8
1-1/2
1-3/4
2
A-344
Stock No.
1256862
1256932
1257002
1257072
1257212
1257282
1257382
1257422
1257492
1257532
1257562
1257632
Weight
Each
(kg)
.30
.36
.84
1.07
1.61
2.37
3.78
4.69
6.83
8.90
12.73
17.26
Working
Load Limit
(t)*
1.60
2.50
4.00
6.50
8.00
11.5
11.8
16.0
24.0
25.0
31.5
45.0
Proof
Load
(kN)**
39.2
62.3
80.0
130
196
275
319
392
520
613
773
1105
A
12.0
13.0
17.0
19.0
22.0
26.0
28.0
31.0
36.0
40.0
45.0
51.0
Dimensions
(mm)
B
60.0
60.0
90.0
90.0
100
115
145
145
155
160
180
215
C
120
120
160
160
180
205
275
275
285
300
340
390
* Ultimate Load is 5 times the Working Load Limit. Applications with wire rope and synthetic sling generally
require a design factor of 5 (refer to local applicable standard). Ultimate Load based on in line pull. ** Proof
Test Load equals or exceeds the requirement of ASTM A952(8.1) and ASME B30.9.
For use with chain slings, refer to page 209 for sling ratings and page 206 for proper master link selection.
A-347
Welded Master Link Assembly with Engineered Flat
Size
(mm)
13/12
17/13
19/13
22/17
28/22
31/25
40/31
45/36
51/45
(in.)
1/2
11/16
3/4
7/8
1-1/8
1-1/4
1-9/16
1-3/4
2
A-347
A-347
Stock No.
1257692
1257762
1257832
1257972
1258142
1258182
1258332
1258402
1258462
Weight
Each
(kg)
.81
1.56
1.79
3.29
7.00
9.43
18.28
26.39
42.88
Working
Load
Limit
(t)*
2.40
3.20
4.20
8.00
12.0
17.0
25.0
31.5
45.0
Proof
Load
(kN)**
57.9
77.2
105
165
275
417
579
773
1105
Dimensions
(mm)
A
13.0
17.0
19.0
22.0
28.0
31.0
40.0
45.0
51.0
B
60.0
90.0
90.0
100
145
145
160
180
190
C
120
160
160
180
275
275
300
340
350
D
12.0
13.0
13.0
17.0
22.0
25.0
31.0
36.0
45.0
E
85.0
120
120
160
180
210
270
285
340
F
45.0
60.0
60.0
90.0
100
115
140
155
180
* Ultimate Load is 5 times the Working Load Limit. Applications with wire rope and synthetic sling generally
require a design factor of 5(refer to local applicable standard). ** Proof Test Load equals or exceeds the
requirement of ASTM A952(8.1) and ASME B30.9.
For use with chain slings, refer to page 209 for sling ratings and page 206 for proper master link selection.
138
Copyright © 2008 The Crosby Group, Inc.
All Rights Reserved