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Chain Company
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Drop Forging
THIELE
Chain Size
d x t [mm]
Article No. Test Force
kN
Elongation
under test force
% max.
Breaking Force
kN min.
Elongation at
fracture
%
Minimum
Defection
[mm]
14 x 50
F13101
185
1,6
246
14
14
18 x 64
F13206
305
1,6
407
14
18
19 x 64,5 F13311
340
1,6
454
14
19
22 x 86
F13401
456
1,6
608
14
22
24 x 86
F13482
543
1,6
724
14
24
24 x 87,5
F13456
543
1,6
724
14
24
26 x 92
F13513
637
1,6
850
14
26
30 x 108
F13653
848
1,6
1.130
14
30
34 x 126
F13813
1.090
1,6
1.450
14
34
38 x 137
F13877
1.360
1,6
1.820
14
38
42 x 137
F15093
1.660
1,6
2.220
14
42
Mechanical Properties
(THD)
the above values apply to chains in ‘natural black’ condition (NSW)
THIELE round-link chains can be used on both face conveyors and stage loaders and are also suitable as
traction elements for coal ploughs. To ensure that its products can meet the tough demands of today’s
mining industry THIELE has developed its own chain steels based on many years of manufacturing know-
how.
Each production stage is accompanied by careful and thorough quality control tests. THIELE chains are re-
cognised the world over for their performance and durability.
This is why THD round-link steel chains are hardened and tempered to a strength of 342 – 371 HB10
(which applies uniformly over the entire link). For chains intended for face conveyors this strength level
represents the optimum in terms of impact resistance (notch impact strength) and wear resistance (hardness).
THIELE Heavy Duty (THD) DIN 22252-2
Important for converting hardness
measurements into tensile strength:
The strength specifcation of all THIELE chains
is based on hardness measurements according
to the Brinell scale.
Converting hardness measurements into tensile
strength [MPa] has until now been carried out
using Table A1 in DIN EN ISO 18265. The new
DIN 22252 / 22255 however has changed over
to Table B2.
Applying Table B2 produces a different set of
tensile strengths from those of Table A1.
Strength: 342 – 371 HB10