19mm Hot Sale Best Quality Lifting Chain For Industrial Applications
Mechanical properties
5.4.1 Manufacturing proof force (MPF)
All the chain shall be subjected to the manufacturing proof force specified in Table 5, column 3 for the
appropriate nominal size of chain.
5.4.2 Breaking force (BF) and total ultimate elongation (A)
Samples of chain in the finished condition shall have a breaking force at least equal to that specified in Table 5, column 4 for the appropriate nominal size of chain. On completion of the static tensile test the total ultimate elongation as defined in EN 818-1:1996 shall be not less than 25 %.
5.4.3 Bend deflection
Single link samples shall withstand the minimum deflection specified in Table 5, column 5 for the appropriatenominal size of chain and shall be free from visible defects.
Table 5 - Working load limits and test requirements
| Side d*p(mm) |
Width(mm) |
Weight Kg/m |
Apprax Load Limit |
Proof Load (kn) |
Breaking Load(kn) |
|
|
| Inside min |
Outside max |
| 8x24 |
10 |
28 |
1.38 |
2 |
48 |
80.4 |
| 10x30 |
12.5 |
35 |
2.2 |
3.2 |
76 |
125 |
| 11x43 |
12.6 |
36.5 |
2.33 |
3.8 |
92 |
154 |
| 12x36 |
15 |
42 |
3.1 |
4.6 |
109 |
181 |
| 12.5x38 |
15.5 |
42.2 |
3.3 |
4.9 |
117 |
196 |
| 13x39 |
16.3 |
46 |
3.8 |
5 |
128 |
214 |
| 14x42 |
18 |
49 |
4.13 |
6.3 |
150 |
250 |
| 14x50 |
17 |
48 |
4 |
6.3 |
150 |
250 |
| 15x46 |
20 |
52 |
5.17 |
7 |
168 |
280 |
| 16x48 |
20 |
56 |
5.63 |
8 |
192 |
320 |
| 16x49 |
24.5 |
59.5 |
5.71 |
8 |
192 |
320 |
| 16x64 |
23.9 |
58.9 |
5.11 |
8 |
192 |
320 |
| 18x54 |
23 |
63 |
6.85 |
10 |
246 |
410 |
| 18x64 |
21 |
60 |
6.6 |
10 |
246 |
410 |
| 19x57 |
23.7 |
63.2 |
7.7 |
11.3 |
270 |
450 |
| 20x60 |
25 |
70 |
8.6 |
12.5 |
300 |
500 |
| 22x65 |
28 |
74.2 |
10.7 |
15.3 |
366 |
610 |
| 22x66 |
28 |
77 |
10.2 |
15.3 |
366 |
610 |
| 22x86 |
26 |
74 |
9.5 |
15.3 |
366 |
610 |
| 24x72 |
32 |
82 |
12.78 |
18 |
432 |
720 |
| 24x86 |
28 |
79 |
11.6 |
18 |
432 |
720 |
| 26x78 |
35 |
91 |
14.87 |
21.3 |
510 |
850 |
| 26x92 |
30 |
86 |
13.7 |
21.3 |
510 |
850 |
| 30x90 |
38 |
105 |
19.6 |
28.3 |
678 |
1130 |
| 30x108 |
34 |
98 |
18 |
28.3 |
678 |
1130 |
| 32x96 |
40 |
106 |
22.29 |
32.2 |
772 |
1286 |
| 34x126 |
38 |
109 |
22.7 |
36.3 |
870 |
1450 |
| 34x102 |
46.5 |
128.5 |
25.5 |
36.3 |
870 |
1450 |
6 Verification of safety requirements
6.1 Qualification of personnel
All testing and examination shall be carried out by a competent person.
6.2 Size of lot and selection of samples
The size of the lot from which samples shall be selected shall be 400 m. An excess fraction of the length of lot shall be considered as a separate lot. Samples shall be selected as specified in EN 818-1.
6.3 Manufacturing proof force, breaking force and total ultimate elongation
6.3.1 Static tensile test
The testing machine and test procedure for the static tensile test shall be as specified in EN 818-1.
6.3.2 Manufacturing proof force acceptance criteria All the chain shall sustain the manufacturing proof force specified in 5.4.1.
6.3.3 Breaking force and total ultimate elongation acceptance criteria On completion of the static tensile test the requirements of 5.4.2 shall be met.
6.4 Bend deflection
6.4.1 Bend test
The test equipment and procedure shall be as specified in EN 818-1.
Each single link sample shall be bent to the minimum deflection, f, as shown in Figure 1 and given in Table 5, column 5.
Following the removal of the force, the link sample shall be examined.
NOTE Where necessary a surface coating may be removed after the bend test to enable this examination to be carried out
6.4.2 Bend deflection acceptance criteria
On completion of the bend test the requirements of 5.4.3 shall be met.
7 Marking
Marking shall be as specified in EN 818-1.
The grade mark for the chain shall be "4".
8 Manufacturer's certificate
The manufacturer's certificate shall be as specified in EN 818-1.
9 Instructions for use
Instructions for use shall accompany the chain and shall be in accordance with the relevant clauses of
prEN 818-6.
Annex A (informative)
Calculation of dimensions, working load limits and mechanical properties
A.1 Dimensions and tolerances
A.1.1 In Table 2, column 2, the tolerances on material diameters are based on:
a) ±4 % of the nominal size of chain for nominal sizes less than 18 mm;
b) ±5 % of the nominal size of chain for nominal sizes of 18 mm and over, values being rounded to 0,1 mm.
A.1.2 The bases for calculation of dimensions in Table 2, columns 3 to 7, are as follows:
Maximum diameter at the weld ds max. = 1,1dn
Nominal pitch pn= 3dn
Minimum pitch of chain pmin = 2,91dn
Maximum pitch of chain pmax = 3,09dn
Minimum internal width away from the weld w1= 1,3dn
Maximum external width over the weld w2= 3,7dn
The dimensions given in Table 2 are full calculated values rounded to 0,1 mm for values up to 100 mm. Values equal to or greater than 100 mm are rounded to 1 mm.
A.2 Working load limits and mechanical properties
A.2.1 General
The stresses used in the calculation of working load limits and mechanical properties in the formulae given
in A.2.2 to A.2.4 are mean stresses as follows:
a) mean stress at the working load limit (WLL) = 100 N/mm2;
b) mean stress at the manufacturing proof force (MPF) = 200 N/mm2;
c) mean stress at the breaking force (BF min.) = 400 N/mm2.
Packaging and Shipping
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