Spot Export of 20MuK I-beam Steel

Editor of Mine I-beam

Mine I-steel is generally referred to as mine steel, which is a kind of I-steel. It is mainly used for support of mine roadway, with wide flange, small height and thick web. It is suitable for mine roadway support.

Catalog

Standard 1

2 Size Specification (mm)

No. 3 and Chemical Constituents

4. Mechanical and technological properties

Standard Editor

YB/T24-1986

Dimension Specification (mm) Editing

Model

Height H

Leg width b

Waist thickness d

Nine

90 S 2.0

76 soil 2.0

8 + 0.6

Eleven

110 + 2.0

90 + 2.0

9 + 0.6

Twelve

120 + 2.0

95 S 2.0

11 + 0.6

Note: 1. The inclination of the outer edge of I-beam should not be greater than 2.4% of the leg width.

2. The bending deflection of I-beam shall not be greater than 1.0 mm.

3. The eccentricity of I-beam should not be greater than 2% of the leg width. Eccentricity: = b2-b1/2

4. The bending degree per meter of I-beam shall not be greater than 3 mm and the total bending degree shall not be greater than 0.3%.

Editor of Brand and Chemical Composition

Model

Brand name

turn

learn

become

branch

C

Si

Mn

P

S

Nine

16Mn

0.16-0.20

0.30-0.60

1.30-1.60

Less than 0.045

Less than 0.050

Eleven

20MnK

0.21-0.26

0.20-0.60

1.20-1.60

Less than 0.045

Less than 0.050

Twelve

Q275b

Q275

0.28-0.37

Less than 0.10

0.15-0.35

0.50-0.80

Less than 0.045

Less than 0.050

Mechanical and Process Performance Editor

Brand name

Power

learn

performance

Technological properties

Yield point s/MPa

Tensile strength b/MPa

Elongation delta 5 (%)

Cold Bending Test 180 Degree

16Mn

More than 345

More than 510

More than 21

D = 2A

20MnK

More than 355

More than 510

More than 18

D = 2A

Q275b Q275

More than 275

490-610

More than 20

D = 3A

Item labels:

Technological Products, Industrial Technologies, Industrial Products