9# miner steel products details

9# miner steel

9# miner steel products introduction

The miners also called steel mine belongs to steel I-beam series, is supporting of coal mine special steel, its shape is I-shaped, similar to ordinary steel, mainly for the support and support the use of metal structure of coal mine. This product is often made U-shaped in the mine, but the legs are often inclined.

9# miner steel gauge

The outer edge of the slope 1 miners steel shall not be greater than 2.4% legs wide.

2 the bending deflection of the miner's steel shall not be greater than 1.0mm.

3 the eccentricity of the miner's steel shall not be greater than 2% of the leg width. Eccentricity: = b2-b1/ 2.

4 miners steel bending degree of not more than 3mm per meter, the total bending degree shall not be greater than 0.3%.

9# miner steel related parameters

Miner's steel model: 9# miner steel

Height (H):90+2.0mm

Leg width (b):76+2.0mm

Waist thickness (d): 8+0.6mm

Weight: 17.69kg

Material: 16Mn

Chemical composition:%

C:0.160.20

S1:0.300.60

Mn:1.301.60

P: not more than 0.045

S: not more than 0.050

Mechanical properties:

Yield point N/mm2 (kgf/mm2): not less than 345 (35)

Tensile strength N/mm2 (kgf/mm2): not less than 510 (52)

Elongation%: not less than 21.