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PR 28-4

Hydraulic tube 28x4 ST37.4 NBK

The product image may differ

Ø d1

28 mm

4 mm

Specific load I

421 bar

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PR 04-0.5 PR 04-0.75 PR 04-1 PR 05-0.75 PR 05-1 PR 06-0.75 PR 06-1 PR 06-1.5 PR 06-2 PR 06-2.25 PR 08-1 PR 08-1.5 PR 08-2 PR 08-2.5 PR 10-1 PR 10-1.5 PR 10-2 PR 10-2.5 PR 10-3 PR 10-4 PR 12-1 PR 12-1.5 PR 12-2 PR 12-2.5 PR 12-3 PR 12-4 PR 14-1 PR 14-1.5 PR 14-2 PR 14-2.5 PR 14-3 PR 14-3.5 PR 15-1 PR 15-1.5 PR 15-2 PR 15-2.5 PR 15-3 PR 16-1 PR 16-1.5 PR 16-2 PR 16-2.5 PR 16-3 PR 16-4 PR 18-1 PR 18-1.5 PR 18-2 PR 18-2.5 PR 18-3 PR 18-4 PR 20-1.5 PR 20-2 PR 20-2.5 PR 20-3 PR 20-3.5 PR 20-4 PR 22-1 PR 22-1.5 PR 22-2 PR 22-2.5 PR 22-3 PR 25-1 PR 25-1.5 PR 25-2 PR 25-2.5 PR 25-3 PR 25-3.5 PR 25-4 PR 25-4.5 PR 25-5 PR 28-1 PR 28-1.5 PR 28-2 PR 28-2.5 PR 28-3 PR 28-3.5 PR 28-4 PR 28-4.5 PR 28-5 PR 30-1.5 PR 30-2 PR 30-2.5 PR 30-3 PR 30-4 PR 30-5 PR 30-6 PR 32-1.5 PR 35-2 PR 35-2.5 PR 35-3 PR 35-4 PR 35-5 PR 35-6 PR 38-2.5 PR 38-3 PR 38-4 PR 38-5 PR 38-6 PR 38-7 PR 42-2 PR 42-3 PR 42-4 PR 42-5 PR 45-5 PR 50-4 PR 50-5 PR 50-6 PR 60-3 PR 60-4 PR 60-10 PR 65-8 PR 80-10

Product details for

PR 28-4

Ø d1

28 mm

4 mm

Specific load I

421 bar

Specific load III

355 bar

Ø d2

20 mm

AD tolerance +/-

0.08 mm

ID tolerance +/-

0.15 mm

All characteristics

Characteristics

Design

metric

Construction type

Precision steel tube, seamless (cold drawn)

Material

steel E235+N (1.0308)

Standard

DIN EN 10305-4

Surface

phosphate treated and oiled

Tube length

Customs tariff number

73043120

All characteristics

Opis proizvoda

Notes

The pressure figures are based on straight tubes.
The appropriate wall thickness needs to be calculated for tubes with bends as stipulated in DIN EN 13480-4.

Further information

Calculation analog DIN 2413
Specific load I: static (up to 120 °C)
Specific load III: dynamic (up to 120°C)
Working stroke= P bar
Strength parameter: K 235 [N/mm²]
Safety coefficient: S 1.5
Fatigue strength: σSch/D 225 [N/mm²]
Tolerances: DIN EN 10305-1 (diameter-/wall thickness indication)