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Tubes China -- a professional company to supply honed tubes and piston rods in China
Products’range:
Honed tubes: ￠20mm -500mm
Piston rods: ￠10mm -200mm
(Detailed specification as per below)
Honed tubes comply with the standard of DIN 2391 and reach the precision of H8 and can be honed or burnished as per customer’s requirement of the roughness of inner diameter. Tubes can be made polished by cold rolled plus honed. The thickness of chrome layer on piston rods is more than 0.03mm and the rods pass tempering.
Furthermore, we have set up a joint venture with Wuxi Beilai and now can supply honed tubes in huge quantity and in shorter delivery time.
More details pls check our production base – Zhangjiagang Tubes China.
Products:
Precise seamless steel tube
Honed tubes 1.honed cylinder tube
2.Honed mechanical tube
3.SRB tube
Piston rod
Material: st45(20#)
ck45(45#) 16MN St52 E355 27SiMn
【Product Name】 Precise seamless
steel tube
【Product Info】
|
Processing mode
|
Diameter
|
Length
|
Linearity
|
Precision
|
Roughness of inner hole
|
|
Cold rolling
|
30-100
|
≤12M
|
0.3-1.0
|
H8-H10
|
0.4-1.6
|
|
Cold drawn
|
30-250
|
≤12M
|
H8-H10
|
0.8-1.6
|
|
Grinding
|
40-500
|
≤12M
|
1000
|
H8-H9
|
0.4-0.8
|
|
Rolling
|
40-400
|
≤7M
|
H8
|
0.4
|
Mechanical performance
|
Model
|
Item
|
Cold drawn (rolling) tube
|
metallic cut pipe
|
|
20
|
Intensity of tensionσbN/mm2
|
≥510
|
≥390
|
|
Elongation rate δ5%
|
≥5
|
≥20
|
|
45
|
Intensity of tension σbN/mm2
|
≥647
|
≥590
|
|
Elongation rateδ5%
|
≥4
|
≥4
|
|
16Mn
|
Intensity of tensionσbN/mm2
|
≥640
|
|
|
Elongation rateδ5%
|
≥10
|
|
|
27SiMn
|
Intensity of tensionσbN/mm2
|
≥840
|
|
|
Elongation rateδ5%
|
≥7.5
|
|
Size tolerance
|
Inner
diameter
|
|
warp
of wall thickness
|
|
H8
|
H9
|
H10
|
|
30
|
+0.033
0
|
+0.052
0
|
+0.084
0
|
±5%
|
|
＞30-50
|
+0.039
0
|
+0.062
0
|
+0.100
0
|
|
＞50-80
|
+0.046
0
|
+0.074
0
|
+0.120
0
|
|
＞80-120
|
+0.054
0
|
+0.087
0
|
+0.140
0
|
|
＞120-180
|
+0.063
0
|
+0.100
0
|
+0.160
0
|
|
＞180-250
|
+0.072
0
|
+0.115
0
|
+0.185
0
|
|
＞250-315
|
+0.081
0
|
+0.130
0
|
+0.210
0
|
|
＞315-400
|
+0.089
0
|
+0.140
0
|
+0.230
0
|
Specification
|
Inner
diameter
mm
|
Outer
diameter
mm
|
Wall
thickness
mm
|
Weight
kg/m
|
Inner
diameter
mm
|
Outer
diameter
mm
|
Wall
thickness
mm
|
Weight
kg/m
|
Inner
diameter
mm
|
Outer
diameter
mm
|
Wall
thickness
mm
|
Weight
kg/m
|
|
30
|
36
|
3
|
2.44
|
90
|
114
|
12
|
30.18
|
160
|
170
|
5
|
20.34
|
|
30
|
40
|
5
|
4.32
|
100
|
108
|
4
|
10.26
|
160
|
172
|
6
|
24.56
|
|
40
|
45
|
2.5
|
2.62
|
100
|
114
|
7
|
18.47
|
160
|
180
|
10
|
41.92
|
|
40
|
51
|
5.5
|
6.17
|
100
|
121
|
10.5
|
28.61
|
160
|
184
|
12
|
50.90
|
|
50
|
55
|
2.5
|
3.24
|
100
|
127
|
13.5
|
37.79
|
160
|
194
|
17
|
74.20
|
|
50
|
60
|
5
|
6.78
|
110
|
119
|
4.5
|
12.71
|
180
|
192
|
6
|
27.52
|
|
50
|
63
|
6.5
|
9.06
|
110
|
133
|
11.5
|
34.46
|
180
|
194
|
7
|
32.28
|
|
50
|
65
|
7.5
|
10.63
|
110
|
140
|
15
|
46.42
|
180
|
203
|
11.5
|
54.31
|
|
50
|
70
|
10
|
14.80
|
120
|
140
|
10
|
32.06
|
180
|
219
|
19.5
|
95.93
|
|
55
|
65
|
5
|
7.40
|
120
|
146
|
13
|
42.64
|
200
|
216
|
8
|
41.03
|
|
55
|
70
|
7.5
|
11.56
|
125
|
135
|
5
|
16.03
|
200
|
219
|
9.5
|
49.08
|
|
60
|
70
|
5
|
8.01
|
125
|
140
|
7.5
|
24.51
|
200
|
240
|
20
|
108.501
|
|
60
|
75
|
7.5
|
12.48
|
125
|
152
|
13.5
|
46.11
|
200
|
245
|
22.5
|
123.45
|
|
63
|
69
|
3
|
4.88
|
125
|
159
|
17
|
59.53
|
220
|
245
|
12.5
|
71.67
|
|
63
|
72
|
4.5
|
7.49
|
140
|
152
|
6
|
21.60
|
220
|
273
|
26.5
|
161.09
|
|
63
|
76
|
6.5
|
11.14
|
140
|
159
|
9.5
|
35.00
|
250
|
270
|
10
|
64.12
|
|
63
|
83
|
10
|
18.00
|
140
|
163
|
11.5
|
42.96
|
250
|
299
|
24.5
|
165.80
|
|
70
|
83
|
6.5
|
12.26
|
140
|
168
|
14
|
53.17
|
280
|
325
|
22.5
|
167.84
|
|
70
|
86
|
8
|
15.39
|
140
|
178
|
19
|
74.50
|
300
|
325
|
12.5
|
96.33
|
|
80
|
86
|
3
|
6.14
|
140
|
180
|
20
|
78.91
|
300
|
351
|
25.5
|
204.68
|
|
80
|
95
|
7.5
|
16.18
|
150
|
160
|
5
|
19.11
|
300
|
377
|
38.6
|
321.38
|
|
80
|
102
|
11
|
24.68
|
150
|
163
|
6.5
|
25.09
|
320
|
351
|
15.5
|
128.24
|
|
80
|
108
|
14
|
32.45
|
150
|
168
|
9
|
35.29
|
320
|
377
|
28.5
|
224.93
|
|
90
|
103
|
6.5
|
15.47
|
150
|
178
|
14
|
56.60
|
400
|
426
|
13
|
132.40
|
|
90
|
108
|
9
|
21.97
|
150
|
180
|
15
|
61.03
|
400
|
480
|
40
|
434.02
|
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