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Българска версия

Hot-Rolled THN Mining Profiles
Description
Technical Characteristics
Brochures
Sales Network
Technical Characteristics
GENERAL FEATURES
TYPE
Chute-shaped mining profiles
STEEL GRADE
31Mn4 according to DIN 21544
FORM-DIMENSIONS
Bars with mass 16.50 / 20.92 / 29.00 Kg/m
LENGTH - TOLERANCESBar length: 6 to 12 m with +/- 75 mm tolerance
PACKING - WEIGHTBundles. Weight up to 5,200 Kg per bundle
DIMENSIONS, WEIGHT & TOLERANCESAccording to FN-SPP-02-98

Steel Chemical Composition & Mechanical Properties
Chemical Composition
Mechanical Properties
Steel Grade
C (%) max
P (%) max
S (%) max
Yield Strength
(N/mm2) min
Tensile Strength
(N/mm2)
Elongation 5d0,
(%) min
31Mn4
0,36
0,045
0,045
350
550
18

Geometrical Characteristics of Cross Sections
Mass (kg/m)
Cross section
F cm2
Inertia moments
Resisting moments
Jx cm4
Jy cm4
Wx cm3
Wy cm3
16.50
21,02
186
223
40
42
20.92
26,65
324
398
61
64
29.00
37,00
616
775
94
103
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