GOCT 8239-89

JSC "Uraltekhmarket" offers Long products, appropriately GOCT 8239-89.

Steel h beam is made by hot deforming the billet of low-alloy or carbon steel. I beam profile is good with a variety of loads (horizontal, vertical, transverse) and much harder (30 times) and stronger beams of square profile.


Because of this it is used as a material for floors in the construction to improve its durability and protection from strong winds and earthquakes. Well proven in bridges, car and rail carriage. Often used in the reinforcement of mine shafts.


This standard specifies the gauge hot rolled steel I-beams with a slope faces internal shelves.

1. Cross section I-beams must match what is specified on the Drawing. 1

h - the height of the I-beam;

b - the width of the shelf;

s - the thickness of the wall;

t - the average thickness of the shelves;

R - the radius of the inner curvature;

r -radius corner shelves

Drawing. 1

Note. The slope faces internal shelves must be 6 - 12 %.

Table 1

 

The number of the I-beam

Dimensions

The cross-sectional area, cm2

Weight 1 м, кг

Reference values for the axes

h

b

s

t

R

r

X - X

Y - Y

no more

Ix,

sm4

Wx,

sm3

ix,

sm

Sx,

sm3

Iy,

sm4

Wy,

sm3

iy,

sm

мм

10

100

55

4,5

7,2

7,0

2,5

12,0

9,46

198

39,7

4,06

23,0

17,9

6,49

1,22

12

120

64

4,8

7,3

7,5

3,0

14,7

11,50

350

58,4

4,88

33,7

27,9

8,72

1,38

14

140

73

4,9

7,5

8,0

3,0

17,4

13,70

572

81,7

5,73

46,8

41,9

11,50

1,55

16

160

81

5,0

7,8

8,5

3,5

20,2

15,90

873

109,0

6,57

62,3

58,6

14,50

1,70

18

180

90

5,1

8,1

9,0

3,5

23,4

18,40

1290

143,0

7,42

81,4

82,6

18,40

1,88

20

200

100

5,2

8,4

9,5

4,0

26,8

21,00

1840

184,0

8,28

104,0

115,0

23,10

2,07

22

220

110

5,4

8,7

10,0

4,0

30,6

24,00

2550

232,0

9,13

131,0

157,0

28,60

2,27

24

240

115

5,6

9,5

10,5

4,0

34,8

27,30

3460

289,0

9,97

163,0

198,0

34,50

2,37

27

270

125

6,0

9,8

11,0

4,5

40,2

31,50

5010

371,0

11,20

210,0

260,0

41,50

2,54

30

300

135

6,5

10,2

12,0

5,0

46,5

36,50

7080

472,0

12,30

268,0

337,0

49,90

2,69

33

330

140

7,0

11.2

13,0

5,0

53,8

42,20

9840

597,0

13,50

339,0

419,0

59,90

2,79

36

360

145

7,5

12,3

14,0

6,0

61,9

48,60

13380

743,0

14,70

423,0

516,0

71,10

2,89

40

400

155

8,3

13,0

15,0

6,0

72,6

57,00

19062

953,0

16,20

545,0

667,0

86,10

3,03

45

450

160

9,0

14,2

16,0

7,0

84,7

66,50

27696

1231,0

18,10

708,0

808,0

101,00

3,09

50

500

170

10,0

15,2

17,0

7,0

100,0

78,50

39727

1589,0

19,90

919,0

1043,0

123,00

3,23

55

550

180

11,0

16,5

18,0

7,0

118,0

92,60

55962

2035,0

21,80

1181,0

1356,0

151,00

3,39

60

600

190

12,0

17,8

20,0

8,0

138,0

108,00

76806

2560,0

23,60

1491,0

1725,0

182,00

3,54

Notes:

1. The cross-sectional area and weight of 1 m of I-beam cleaned at the nominal dimensions; the density of steel is equal to 7.85 g/cm3.

2. The values of radii of curvature, the slope faces internal shelves thickness of shelves is indicated on the devil. 1 and in table. 1, given for building caliber at a ready to rent is not controlled.

3. In the tables, use designations:

I -  is the moment of inertia;

W - moment of resistance;

S - static moment of polyacene;

i - radius of inertia.

4. Beams from No. 24 to No. 60 not recommended for new designs.

 

The nominal sizes of I-beams, the cross-sectional area, mass and reference values for the axes shall be as given in table. 1.

Accuracy rolling beams made:

increased accuracy - B

conventional precision - V.

Tolerances for size and shape of the cross section I-beams (Fig. 1 - 2) shall be as given in table. 2.

 

b1 - the width of the shortened flange;

b2 - the width of the elongated flange;

D - skew of the shelf; f - deflection of the wall

 

 

 

Drawing. 2

Table 2

 

Parameter I-an indicator of quality

Size

Предельные отклонения при точности прокатки

high

normal

Height h

140 incl.

 

±2,0

More than 140   »   180   »

±2,0

±2,5

 »   180   »   300   »

 

±3,0

 »   300   »   360   »

±3,0

±3,5

 »   360   »   600   »

±4,0

±4,0

Width shelves b

To 73 incl.

 

±2,0

More than   73   »    90   »

±2,0

±2,5

 »     90   »   135   »

 

±3,0

 »   135   »   155   »

 

±3,5

 »   155

±3,0

±4,0

The thickness of the shelves t*

To 7.5 incl.

-0,4

-0,7

More than  7,5   »   8,9   »

-0,5

-0,7

 »    8,9   »  10,7   »

-0,6

-0,8

 »  10,7   »  12,3   »

-0,7

 

 »  12,3   »  14,2   »

-0,8

-1,0

 »  14,2   »  15,2   »

-0,9

 

 »  15,2

-1,0

-1,2

Bias shelves D when the width of the b

From 55 to 190 incl.

No more 0,0125 b

No more 0,02 b

Deviation from

To 73 incl.

 

2,0

symmetry d

Over. 73  »    90   »

2,0

2,5

 »     90   »  135   »

 

3,0

при ширине b

 »   135   »  145   »

 

3,5

 

 »   145

3,0

4,0

Длина

До 8 м включ.

+40

+40

Over.  8 м

To a tolerance of +40 to add 5 mm on each meter length of St is 8 m

+80

* Positive deviations are limited to extreme deviations on the ground.

 

The deflection of the wall (f) should not exceed 0.15 S.

The curvature of the I-beam must not exceed 0.2 % of the length.

Blunting the outer edges of the shelves I-beams increased accuracy should not exceed 2.2 mm for conventional I-beams accuracy is not controlled.

Profiles are manufactured with length from 4 to 12 m:

the measured length;

multiple of gauging length;

of random length.

By agreement with the consumer it is allowed manufacture of I-beams with a length of over 12 m.

Variations in the mass of 1 m of I-beam shall not exceed plus 3, minus 5 %.

By agreement between manufacturer and consumer, the deviation in mass without control of the thickness of the shelves and the walls of I-beam shall not exceed plus 3, minus 3 % for I-beams up to No. 16 and plus 2.5 minus 2.5% for the I-beams of over 16.

The size and geometric shape control at a distance of not less than 500 mm from the end of the I-beam.

The height of the I-beam control in the plane Y - Y.

The advantages of working with JSC "Uraltekhmarket"


  •  flange beam - vast assortment

  •  quality and reliability, availability of certificates and licenses for products

  •  long-standing relationships with manufacturers

  •  the presence of branch offices and own warehouses

  •  friendly service and individual approach

  •  the possibility of online ordering catalog

ABOUT US

JSC "URALTEKHMARKET" is a team of qualified professionals.
The main objective of which is acquisition of enterprises products.
We work with companies in all sectors hozyayst.
Take on the role of OMTS.
Specilities in a more focused segment, we guarantee the optimum solution of tasks of any complexity.
This approach allows to minimize the cost of materials and logistics.

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