DIN2391 High Pressure hydraulic Galvanized Steel Tubing
Product Detail
DIN2391 High Pressure hydraulic Galvanized Steel Tubing is produced basing on DIN 2391-C. It is widely used in hydraulic systems, machine tools, automobiles, ships, construction machinery and vehicles. The Hydraulic galvanized seamless steel tube with high precision has lots of advantages: No corrosion after 120 hours SALT SPRAY TEST; Good performance in Anti Corrosion & Rust; Bright pipe electric coated with Zinc; Different Color: White/ Yellow/Colorful; High Pressure /No leakage seamless steel pipe.
Specification
|
Standard |
DIN2391 DIN1630 EN10305 DIN2445 JIS G3445 SAE J524 |
|
Grade |
ST35/E235 ST37.4 ST45/E255 ST52/E355 |
|
Delivery Condition |
NBK(+N) BK(+C) GBK(+A) BKW(+LC) BKS(+SR) |
|
Size |
OD:4 to 219mm Thickness 0.5-35mm, Length: 3m,5.8,6 or according to requirements |
|
Finish |
Galvanized surface (Sliver/Yellow/Colorful) Zinc coating of 8-12um |
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Application |
Hydraulic System; Car/bus; construction vehicle |
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Delivery time |
A.3 days if this good is stock goods. B. About 30 days according to the quantity |
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HYDRAULIC PRECSION STEEL TUBE IN STOCK |
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OD |
Thickness(mm) |
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mm |
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4 |
4*1 |
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6 |
6*1 |
6*1.5 |
6*2 |
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8 |
8*1 |
8*1.5 |
8*2 |
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10 |
10*1 |
10*1.5 |
10*2 |
10*2.5 |
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12 |
12*1 |
12*1.5 |
12*2 |
12*2.5 |
12*3 |
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14 |
14*1 |
14*1.5 |
14*2 |
14*2.5 |
14*3 |
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15 |
15*1 |
15*1.5 |
15*2 |
15*2.5 |
15*3 |
15*3.5 |
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16 |
16*1 |
16*1.5 |
16*2 |
16*2.5 |
16*3 |
16*3.5 |
16*4 |
16*4.5 |
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18 |
18*1 |
18*1.5 |
18*2 |
18*2.5 |
18*3 |
18*3.5 |
18*4 |
18*4.5 |
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20 |
20*1 |
20*1.5 |
20*2 |
20*2.5 |
20*3 |
20*3.5 |
20*4 |
20*4.5 |
20*5 |
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22 |
22*1 |
22*1.5 |
22*2 |
22*2.5 |
22*3 |
22*3.5 |
22*4 |
22*4.5 |
22*5 |
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25 |
25*1 |
25*1.5 |
25*2 |
25*2.5 |
25*3 |
25*3.5 |
25*4 |
25*4.5 |
25*5 |
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28 |
28*1 |
28*1.5 |
28*2 |
28*2.5 |
28*3 |
28*3.5 |
28*4 |
28*4.5 |
28*5 |
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30 |
30*1 |
30*1.5 |
30*2 |
30*2.5 |
30*3 |
30*3.5 |
30*4 |
30*4.5 |
30*5 |
30*6 |
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32 |
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32*1.5 |
32*2 |
32*2.5 |
32*3 |
32*3.5 |
32*4 |
32*4.5 |
32*5 |
32*6 |
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34 |
|
34*1.5 |
34*2 |
34*2.5 |
34*3 |
34*3.5 |
34*4 |
34*4.5 |
34*5 |
34*6 |
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35 |
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35*1.5 |
35*2 |
35*2.5 |
35*3 |
35*3.5 |
35*4 |
35*4.5 |
35*5 |
35*6 |
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38 |
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38*2 |
38*2.5 |
38*3 |
38*3.5 |
38*4 |
38*4.5 |
38*5 |
38*6 |
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40 |
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40*2 |
40*2.5 |
40*3 |
40*3.5 |
40*4 |
40*4.5 |
40*5 |
40*6 |
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42 |
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42*2 |
42*2.5 |
42*3 |
42*3.5 |
42*4 |
42*4.5 |
42*5 |
42*6 |
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45 |
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45*2 |
45*2.5 |
45*3 |
45*3.5 |
45*4 |
45*4.5 |
45*5 |
45*6 |
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46 |
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46*2 |
46*2.5 |
46*3 |
46*3.5 |
46*4 |
46*4.5 |
46*5 |
46*6 |
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48 |
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48*2 |
48*2.5 |
48*3 |
48*3.5 |
48*4 |
48*4.5 |
48*5 |
48*6 |
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50 |
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50*2 |
50*2.5 |
50*3 |
50*3.5 |
50*4 |
50*4.5 |
50*5 |
50*6 |
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54 |
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54*2.5 |
54*3 |
54*3.5 |
54*4 |
54*4.5 |
54*5 |
54*6 |
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60 |
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60*2.5 |
60*3 |
60*3.5 |
60*4 |
60*4.5 |
60*5 |
60*6 |
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65 |
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65*3 |
65*3.5 |
65*4 |
65*4.5 |
65*5 |
65*6 |
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75 |
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75*3.5 |
75*4 |
75*4.5 |
75*5 |
75*6 |
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76 |
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76*4 |
76*4.5 |
76*5 |
76*6 |
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89 |
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89*6 |
| Note： We could produce other sizes as your requirements. Surface Treatment: Bright, Galvanized, Phosphating etc. | ||||||||||
Chemical Composition
|
Steel Grade |
C |
Si |
Mn |
P |
S |
Al |
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|
Name |
No. |
max |
max |
max |
max |
max |
max |
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E215 |
1.0212 |
0.1 |
0.05 |
0.7 |
0.025 |
0.015 |
0.025 |
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E235 |
1.0308 |
0.17 |
0.35 |
1.2 |
0.025 |
0.015 |
— |
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E355 |
1.058 |
0.22 |
0.55 |
1.6 |
0.025 |
0.015 |
— |
|
ST35 |
1.0308 |
0.17 |
0.35 |
0.4（min） |
0.025 |
0.025 |
— |
|
ST45 |
1.0408 |
0.21 |
0.35 |
0.4（min） |
0.025 |
0.025 |
— |
|
ST52 |
1.058 |
0.22 |
0.55 |
1.6 |
0.025 |
0.025 |
— |
Mechanical properties
|
Steel Grade |
Yield Strength (Mpa) | Tensile Strength (Mpa) | Elongation（%） | |
|
Name |
No. |
ReH (min) | Rm(min) |
A(min) |
|
E215 |
1.0212 |
215 |
290 to 430 |
30 |
|
E235 |
1.0308 |
235 |
340 to 480 |
25 |
|
E355 |
1.058 |
355 |
490 to 630 |
22 |
|
ST35 |
1.0308 |
235 |
340 to 480 |
25 |
|
ST45 |
1.0408 |
255 |
440 to 570 |
21 |
|
ST52 |
1.058 |
355 |
490 to 630 |
22 |
Tolerance
|
OD |
Allowable tolerance |
Special Tolerance |
||
|
|
GB/T3639 |
DIN2391 |
OD |
WT |
|
4mm-20mm |
±0.10mm |
±0.08mm |
±0.05mm |
±0.05mm |
|
20mm-30mm |
±0.10mm |
±0.08mm |
±0.08mm |
±0.08mm |
|
31mm-40mm |
±0.15mm |
±0.15mm |
±0.10mm |
±0.08mm |
|
41mm-60mm |
±0.20mm |
±0.20mm |
±0.15mm |
±0.15mm |
|
61mm-80mm |
±0.30mm |
±0.30mm |
±0.20mm |
±0.20mm |
|
81mm-120mm |
±0.45mm |
±0.45mm |
±0.30mm |
±0.30mm |
Delivery Condition
|
Designation |
Symbol |
Description |
| Cold finished (hard) | BK(+C) | Tubes do not undergo heat treatment following the final cold forming and, thus, have a rather high resistance to deformation |
| Cold finished (Soft) | BKW | The final heat treatment is followed by cold drawing involving limited deformation. Appropriate further processing allows a certain degree of cold forming (e.g. bending, expanding) |
| (+LC) | ||
| Cold finished and stress-relieved | BKS(+SR) | Heat treatment is applied following the last cold forming process. Subject to appropriate processing conditions, the increase in the residual stresses involved enables both forming and machining to a certain degree. |
| Annealed | GBK(+A) | The last Cold forming process is followed by annealing in a controlled atmosphere. |
| Normalized | NBK(+N) | The last cold forming process is followed by annealing above the upper transformation point in a controlled atmosphere. |
Quality Assurance
1. Strict according to DIN2391/EN10305 or other standard.
2. Sample: Sample is free for test.
3. Tests: Salt spray test/Tensile test / Eddy current / Chemical composition test according to customers' request
4.Certificate: IATF16949, ISO9001, SGS etc.
5.EN 10204 3.1 Certification
Application
Product package
