Železiarne Podbrezová a.s.
|

Ask for quote

|

+421 48 6451111

Tubes for hydraulic and pneumatic lines – HPL type


Tubes designated for hydraulic and pneumatic pressure distribution – type HPL are seamless cold drawn steel tubes that are used in pressure distributions and circuits, in hydraulically and pneumatically operated equipment.

The speed and pressure of the medium are significantly changing and these devices have characteristic pressure surges on the inner surface of tubes.

Tubes for hydraulic and pneumatic lines – HPL type

Dimensions of tubes for hydraulic and pneumatic lines

OUTER DIAMETER (OD)6,0 – 80,0 mm
WALL THICKNESS (WT)1,0 – 12,5 mm
EUROPEAN STANDARDSEN 10305-4,
DIN 2391-1,
BS 7416,
NF a 49-330,
STN/ČSN 42 6711,
STN/ČSN 42 6712
JAPANESE STANDARDSJIS JOHS 102
AMERICAN STANDARDSASTM A 822
Dimensional standard SIZES (OD x WT) Dimensional table
EN10305-44.0 x 0.5 – 80.0 x 12.5 mm
DIN2391-14.0 x 0.5 – 80.0 x 12.5 mm
DIN2445-24.0 x 0.5 – 80.0 x 12.5 mm
ČSN42 67114.0 x 0.5 – 80.0 x 12.5 mm
ČSN42 67124.0 x 0.5 – 80.0 x 12.5 mm
NF A49-3304.0 x 0.5 – 80.0 x 12.5 mm
BS74164.0 x 0.5 – 80.0 x 12.5 mm
PN – H742454.0 x 0.5 – 80.0 x 12.5 mm
UNI79454.0 x 0.5 – 80.0 x 12.5 mm
ASTMA8226.35 x 0.51 – 120.65 x 9.53 mm [0.250 x 0.020 – 4.750 x 0.375 in] [25 – 3/8 GA]
JISJOHS-10210.5 x 1.7 – 114.3 x 9.5 mm

Steel grades of tubes for hydraulic and pneumatic lines

EN 10305-4E215, E235, E355
EN 10 294-2CSt35
STN 42 026011 353, 11 523
DIN 1630St37.4, St44.4, St52.4
ASTM A 822A 822
Standard TDC Steel grade (open product) Dimensional standard
BS74167416
PN – H74 24574245
NF A49-33049-330
UNI79457945
DIN1630 / 2445-22445-2
UNI79457945
ČSN42 026042 6712
BS74167416
ČSN42 026042 6711
PN – H74 24574245
NF A49-33049-330
UNI79457945
BS74167416
DIN1630 / 2445-22445-2
NF A49-33049-330
EN10305-410305-4
PN – H74 24574245
DIN2391-2C / 2445-22391-1
STN42 026042 6711
ČSN42 026042 6711
DIN1630 / 2445-22445-2
EN10305-410305-4
STN42 026042 6711
ČSN42 026042 6712
STN42 026042 6712
UNI79457945
UNI79457945
STN42 026042 6712
EN10305-410305-4
ASTMA822/A450A822
JISJOHS-102JOHS-102
JISJOHS-102JOHS-102
JISJOHS-102JOHS-102
JISJOHS-102JOHS-102

Length of tubes for hydraulic and pneumatic lines

(a), manufactured length of the tubes is 6 000 mm (length tolerances 0 + 50 mm)
(b), exact length is in the range of 3 000 – 9 000 mm (length tolerances 0 + 10 mm)

Tubes for hydraulic and pneumatic line testing

Non specific inspection or specific inspection. In both cases leak tightness test will be carried out in accordance with EN 10246-1 (electromagnetic test).

Other tests according to standards.

Tolerances of tubes for hydraulic and pneumatic lines

Tolerances of the precision tubes meet the appropriate dimensional table standards.

Zeleziarne Podbrezova a.s. offers precision tubes with tighter tolerances, i.e. tolerances that are tighter compared with the standard values.
Reduced tolerances for metrical sizes – European standards.

Tubes for hydraulic and pneumatic lines ends

The ends are vertical to the longitudinal axis and are without burrs.
The ends are vertical to the longitudinal axis and are without burrs.
Upon agreement the tubes may be capped with plastic caps.
Upon agreement the tubes may be capped with plastic caps.

Tubes surface protection

(a) oiled
(b) phosphated and oiled
(c) outside surface of tube as chromating – upon agreement only

Packaging of tubes for hydraulic and pneumatic lines

Tubes are packed in round or hexagonal bundles of maximum 2000 kg each, fastened with steel strips.

On request – paper below the stripes and plastic bags at the bundle ends.

Packaking-STANDARD-tubes bound with a steel band
Packaking-STANDARD-tubes bound with a steel band
Packaking-STANDARD-bundle tied down by steel strap underlaid by paper
Packaking-STANDARD-bundle tied down by steel strap underlaid by paper
Packaking-STANDARD-PLUS-paper tape and polyethylene foil
Packaking-STANDARD-PLUS-paper tape and polyethylene foil
Packaking-STANDARD-PLUS-the bundle placed into a wooden box
Packaking-STANDARD-PLUS-the bundle placed into a wooden box
Packaking-PREMIUM-B-into a wooden box in which the tubes are wrapped in foil
Packaking-PREMIUM-B-into a wooden box in which the tubes are wrapped in foil
Packaking-PREMIUM-C-the bandles are wraped into and plastic foil
Packaking-PREMIUM-C-the bandles are wraped into and plastic foil
Packaking-PREMIUM-D-placing the whole shipment into foil+vacuum sealed
Packaking-PREMIUM-D-placing the whole shipment into foil+vacuum sealed

Marking of tubes for hydraulic and pneumatic lines – HPL type

Each tube shall be marked with Ink-Jet system along whole tube length according to standard or customer’s specification.

The bundle of tubes shall be marked with a label attached to the bundle.

Marked by a label
Marked by a label
Marked with spray either by a white or black color using InkJet
Marked with spray either by a white or black color using InkJet
Marked by stamping the data
Marked by stamping the data

Certified test reports

According to DIN 50049 and EN 10204:2004

  • non specific inspection – 2.2
  • mspecific inspection – 3.1.B., according to EN 3.1
  • pon agreement – 3.1.C., according to EN 2.2

Straightness of tubes

3 mm/m, totally max 0,0015% of tube length.

Delivery condition

Normalized:

.1 – STN, ČSN NBK – DIN
+N – EN
N – ASTM

Roughness (D and d), d over 15 mmm, Ra ≤ 4 µm.

Steel micropurity

According to NFA 04 – 106 or ASTM E45 (JK ranking) max. A4-B2-C2-D2.

Upon agreement it is also possible to assign according to EN 10247 or ISO 4967 (A – sulphides, B – alumina, C – silicates, D – oxides).

Grain size meets the EN ISO 643 – 5 and finer.

Allowable pressure for hydraulic and pneumatic lines

The highest allowable pressure for hydraulic and pneumatic lines in relationship to steel and tube testing – Steel 37.4 a Steel 52.4.

Calculation was done according to DIN 2413.

Contact us

Are you interested in cooperation? Send us an inquiry, or order the goods directly from stock.
+421 48 6451111 | admin@zelpo.sk

Download the Product portfolio of steel tubes

Send us your INQUIRY

 Your ASK FOR QUOTE form