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Hydraulic Steel Tubes - St37.4 Material
Norm DIN2391 EN10305, High quality ST 37.4 NBK Hydraulic
Steel Tubes St35, St37.4, St52, Seamless Precision
Steel Tubing, bright heat treatment without oxidation
(NBK status), non-destructive testing, cleaning, phosphating,
anti-rust oil dipping, the application for machine tools industry,
construction machinery, ship building industry hydraulic system,
automotive steel tube, and in the occasion where the high precision,
brightness, cleanness and mechanical properties of the tube
are required.
Seamless Precision Steel Tubes - DIN 2391
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DIN highly accurate, cold drawn
and bright seamless precision steel tube is used
as the tube to be phosphated. The phosphated is realized with
the imported chemical fluid to form a black film. The antirust
oil is absorbed by means of the micropore on the film to prevent
from the rust. The caps are covered at two ends of tube to prevent
from the dust.
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High accuracy, excellent brightness, no
oxidization on the outer and inner walls after heat treatment,
high cleanness inside wall.
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The steel tube is able to stand high pressure.
No deformation after cold bending, no crack after flaring and
flattening. The complicated geometrical forming and machining
can be realized.
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The color of NBK tube is Bright Black.
Color is homogeneously distributed on the tube surface. The
tube has good property of antirust.
Production Standard ¡GDIN 2391/DIN 1629/EN
10305/ASTM A179/JIS G3445 Finished Condition ¡G NBK(+N) /
GBK(+A) / BK(+C) / BKW(+LC) / BKS(+SR) Material¡G ST35(E235)
/ ST45(E255) / ST52(E355) / ST37.4
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Size List : all dimensions are by metric.
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4x0.5
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12x1.5 |
16x2.5 |
22x1.5 |
28x2.0 |
34x2.0 |
38x3.0 |
48x3.5 |
| 4x1.0 |
12x2.0 |
16x3.0 |
22x2.0 |
28x2.5 |
34x2.5 |
38x3.5 |
48x5.0 |
| 5x1.0 |
12x2.5 |
18x1.0 |
22x2.5 |
28x3.0 |
34x3.0 |
38x4.0 |
50x5.0 |
| 6x1.0 |
14x1.0 |
18x1.5 |
22x3.0 |
28x3.5 |
34x3.5 |
38x5.0 |
50x6.0 |
| 6x1.5 |
14x1.5 |
18x2.0 |
22x3.5 |
28x4.0 |
34x4.0 |
38x6.0 |
60x3.0 |
| 6x2.0 |
14x2.0 |
18x2.5 |
22x4.0 |
30x1.5 |
34x4.5 |
40x4.0 |
60x5.0 |
| 8x1.0 |
14x2.5 |
18x3.0 |
22x5.0 |
30x2.0 |
34x5.0 |
42x2.0 |
60x6.0 |
| 8x1.5 |
14x3.0 |
19x2.0 |
24x2.0 |
30x2.5 |
35x1.5 |
42x3.0 |
60x7.0 |
| 8x2.0 |
15x1.0 |
20x1.0 |
25x2.0 |
30x3.0 |
35x2.0 |
42x3.5 |
60x8.0 |
| 8x2.5 |
15x1.5 |
20x1.5 |
25x2.5 |
30x3.5 |
35x2.5 |
42x4.0 |
65x5.0 |
| 9x1.5 |
15x2.0 |
20x2.0 |
25x3.0 |
30x4.0 |
35x3.0 |
42x4.5 |
65x8.0 |
| 10x1.0 |
15x2.5 |
20x2.5 |
25x4.0 |
30x5.0 |
35x3.5 |
42x5.0 |
70x4.0 |
| 10x1.5 |
15x3.0 |
20x3.0 |
27x3.0 |
32x2.0 |
35x4.0 |
42x6.0 |
70x5.0 |
| 10x2.0 |
16x1.0 |
20x3.5 |
27x3.5 |
32x2.5 |
35x4.5 |
45x3.0 |
70x8.0 |
| 10x3.5 |
16x1.5 |
20x4.0 |
27x4.0 |
32x3.0 |
35x5.0 |
45x6.0 |
90x5.0 |
| 12x1.0 |
16x2.0 |
22x1.0 |
28x1.5 |
32x4.0 |
38x2.5 |
48x3.0 |
114x4.0 |
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Remark
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¡¹Other Specification
and requirement can be customers make. |
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