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Steel Section
Home > Tangshan Jikuang Mining Supplies Co.,ltd

I-Section Steel For Mines

Mining I beam

Grade:    SS400 - SS490, 20MnK

Standard: AISI, ASTM, BS, DIN, EN, GB, JIS

Model Number: 9#  11#  12#

Depth: 50-180mm

Height: 90-120cm

Leg width: 76-90cm

Leg depth: 8-11cm

Length:  6-12m, or according to customers’ requirements.

Sectional area: 22.54-39.12

Weight: 17.69-31.18 kg/m

Certificate: ISO9001,MTC,CO,FORME,SGS

Quality control:

a)Mill Test Certificate is supplied with shipment.

b)Third party inspection is highly welcomed.

Standard:YB/T 5047-2000    2016JX039

Model Number 9# 11# 12#
Height (mm) 90±2.0 110±2.0 120±2.0
Leg Height (mm) 76±2.0 90±2.0 95±2.0
Leg Thickness (mm) 8±0.6 9±0.6 11±0.6
Sectional Areac㎡) 22.54 33.18 39.72
Theoretical Weight(㎏/m) 17.69 26.05 31.18
Material 20Mnk 20Mnk 20Mnk
chemical composition:% c 0.15-0.26 0.15-0.26 0.15-0.26
S1 0.20-0.60 0.20-0.60 0.20-0.60
Mn 1.20-1.60 1.20-1.60 1.20-1.60
p ≤0.045 ≤0.045 ≤0.045
s ≤0.045 ≤0.045 ≤0.045
Mechanical property

Yield strength

  ReH/Mpa

≥Q345 ≥Q345 ≥Q345

Tensile strength

Rm/MPa

470-630 470-630 470-630

Elongation  A/%

≥20 ≥20 ≥20
Process performance

Cold bending test  180°

d=2a d=2a d=2a