Size and dimension

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DIN 2395, GOST 8639,GOST 8645, ČSN EN 10305–5, ČSN 42 0121, GOST 13663,

Size: from 8×8 to 60×60 mm
Wall thickness: from 0.8 to 4 mm

Material

Steel grades by DIN: St12, St34–2, RSt37–2, St37–2
GOST: VSt2kp, VSt3kp, VSt3sp

Consideration will be given to customers' request for other steel grades.

Surface finish

Drawn section tubes are supplied in bright surface finish. The weld at the outer surface may be visible, the inner collar is removed. The surface defects and scratches which will not exceed a half of the wall thickness tolerance limit are permissible (measured from the true dimension).

Heat treatment

As required by the customer:

  • without heat treatment (BK condition according to DIN standard)
  • normalized (NBK condition according to DIN standard)

Lengths and tolerances

Manufactured length: from 2 to 7 m
Approximate length: from 3.5 to 7 m with a tolerance limit of ±250 mm
Precise length: from 3.5 to 7 m with a tolerance limit of + 50 mm
Extra precise length: from 0.3 to 2 m with a tolerance limit of ±1 mm

Tolerance limits of outer dimensions and the wall thickness meet appropriate standards. Following an agreement, square section tubes of all sizes and rectangular section tubes of longer size up to 60 mm may be supplied in a straightened condition.

Packing and designation

The drawn steel section tubes are supplied in band-blocked bundles in a weight of up to 3000 kg. Following an agreement, tubes may be packed in squared or rectangular bundles. Each bundle is fitted with the producer's label with the data as follows:

  • size
  • steel grade
  • heat number
  • order number
  • final inspection
  • customer
  • weight in kg, following an agreement length in m and number of pieces

The surface of the sections is protected against atmospheric corrosion with preserving agent.

Profile

8a
B mmt mmWeight kg/mTube noB mmt mmWeight kg/mTube noB mmt mmWeight kg/mTube no
8 0.8 0.18 3531608 20 1.5 0.87 3500415 38 1.5 1.69 3530615
10 0.8 0.22 3500108 20 2.0 1.13 3500420 38 2.0 2.21 3530620
10 1.0 0.28 3500110 22 1.0 0.65 3500510 38 2.5 2.70 3630625
12 0.8 0.29 3500208 22 1.25 0.79 3530512 38 3.0 3.17 3630630
12 1.0 0.35 3500210 22 1.5 0.93 3530515 40 1.5 1.79 3500915
12 1.25 0.42 3500212 22 2.0 1.20 3530520 40 2.0 2.39 3500920
12 1.5 0.50 3500215 25 1.0 0.75 3500610 40 2.5 2.94 3500925
12.7 1.6 0.56 3532516 25 1.1 0.86 3500611 40 3.0 3.49 3500930
14 0.8 0.32 3500208 25 1.5 1.11 3500615 45 1.5 2.05 3501015
14 1.0 0.39 3530310 25 2.0 1.44 3500620 45 2.0 2.70 3501020
14 1.25 0.48 3530312 28 1.5 1.18 3501515 45 2.5 3.33 3501025
14 1.5 0.56 3530325 28 2.0 1.55 3501520 45 3.0 3.96 3501030
15 0.8 0.34 3500308 28 2.5 1.92 3501525 48 1.5 2.19 3530715
15 1.0 0.43 3500310 30 1.5 1.34 3500715 48 2.0 2.83 3530720
15 1.25 0.54 3500312 30 2.0 1.76 3500720 48 2.5 3.49 3530725
15 1.5 0.64 3530315 30 2.5 2.16 3500725 48 3.0 4.12 3530730
16 0.8 0.37 3530108 30.5 1.5 1.37 3531815 50 1.5 2.28 3501115
16 1.0 0.46 3530110 30.5 2.0 1.76 3531820 50 2.0 3.01 3501120
16 1.25 0.56 3530112 30.5 2.5 2.16 3531825 50 2.5 3.73 3501125
16 1.5 0.68 3530115 32 1.5 1.44 3530215 50 3.0 4.43 3501130
16 2.0 0.79 3530120 32 2.0 1.83 3530220 52 1.5 2.38 3532115
18 1.0 0.52 3530410 32 2.5 2.23 3530225 52 2.0 3.14 3532120
18 1.25 0.64 3530412 33 2.5 2.39 3531525 52 2.5 3.89 3532125
18 1.5 0.75 3530415 34 2.0 2.01 3532020 52 3.0 4.62 3532130
18 2.0 1.00 3530420 35 1.5 1.58 3500815 55 2.0 3.33 3501220
20 1.0 0.60 3500410 35 2.0 2.07 3500820 55 2.5 4.12 3501225
20 1.1 0.65 3500411 35 2.5 2.55 3500825 55 3.0 4.88 3501230
20 1.25 0.74 3500412 35 3.0 3.01 3500830 60 2.0 3.64 3501320
20 1.3 0.76 3500413 37.5 3.25 3.50 3531932 60 2.5 4.51 3501325
60 3.0 5.37 3501330

R = 1.5t

Demand

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