Parker Hannifin Corporation
Tube Fittings Division
Columbus, Ohio
http://www.parker.com/tfd
Q3
Metric Tube
4300
Catalog
Temperature Material
-60
° up to
+20° C 50° C 100° C 200° C 300° C 400° C
Pressure
reductions in %
1.4571
— 5.5 11.5 21.5 29 34
Parker
Series
Material
Tensile
Strength
Yield
Strength
%
Elongation
Condition
R
Series
Steel, fine grain
E235N acc. to
EN10305-4 (St. 37.4
acc. to DIN1630
340
N/mm
2
min.
49,000
PSI
235
N/mm
2
min.
34,000
PSI
25%
min.
Seamless, cold drawn normal
annealed, DIN EN 10305-1 and -4
R-71
Series
Stainless
steel, 1.4571
X6CrNiMoTi17122
500
N/mm
2
min.
72,500
PSI
245
N/mm
2
min.
35,500
PSI
35%
min.
Seamless, cold drawn free of scale,
heat treated in accordance with DIN
EN 10216-5 tab. 6
Introduction
Parker offers three types of seamless metric tubes for hydraulic,
pneumatic and instrumentation applications:
•
Steel seamless cold drawn tube, phosphate and oil
dipped for corrosion resistance
•
Steel seamless cold drawn tube, zinc Chromium-6 free
plating for corrosion resistance
•
Stainless steel cold drawn tube
Conformance and Material Specifications
Tests and Certificates
All tubes are subjected toa non-destructive leak test andmarked
accordingly. This marking is used in lieu of a works certificate
DINEN 10204-2.2.Test Class 1 DINEN 10216-5Table 7 applies
for tubes made of 1.4571 material.
Materials and Mechanical Properties
Steel Types, mechanical properties and conditions are listed
in Table Q1.
Welding Suitability and Weldability:
•
Steel tubes of St. 37.4, R Series, are weldable according
to usual techniques.
•
Not recommended to weld St. 37.4, R-VZ series,
Zinc Chromium-6 Free plated tubes.
Stainless steel tubes of 1.4571 are suitable for arc welding.
The welding filler should be selected in accordance with DIN
EN1600 and DIN EN12072 Part 1 taking into account the type
of application and the welding technique.
Assembly and Installation
Please refer to
Section S
for the assembly and installation
instructions for Metric Tube fittings.
Table Q1 — Parker Steel tubes mechanical properties and conditions
Note:
Interpolation is acceptable for intermediate temperature levels.
Table Q2 — Parker stainless tube elevated temperature derating factors
Applications
Recommended Bend Radius
Abend radius of 3 times the tubeO.D.or greater is recommended
for cold bending of Parker tubes with hand, mechanical and
power bending equipment.
*
Use of Tube Supports
The use of VH tube supports for EO and EO-2 fittings is required
in certain thinner wall tubes to ensure proper assembly. Consult
Fig. S45 & Fig. S46 on page S30.
Temperature Range
•
Parker steel (St. 37.4) metric seamless tube can be used
at the full rated working pressures without pressure rating
reductions within the following temperature range: -40°C
to +120°C. Maximum allowable operating temperature of
+250°C.
•
Parker stainless steel (1.4571) metric seamless tube can
be used at full rated working pressures with-out pres-
sure reductions within the following temperature ranges:
-60
°C to +20°C.Maximumallowable operating temperature
of +400°C. Elevated temperature pressure reductions are
as listed in Table Q2.
As Delivered Conditions:
Standard Tube Lengths: 6 meters (approx. 20 ft)
Surface Finish:
•
Steel (St. 37.4): Phosphated and oiled
•
I.D. dimensions 1.5 – 5 mm, outside and inside oiled
•
I.D. dimensions 6 mm and higher, outside and inside
phosphated and oiled
•
Steel (St. 37.4) R-VZ Series: Zinc Chromium-6 Free