Honing pipe generally refers to hydraulic steel pipe. Hydraulic steel pipe is basically divided into fluid pipe and oil steel tube pipe used in hydraulic system, also known as honing pipe.
Type: Seamless, Hot Rolled, Cold Rolled, Cold Drawn
Straightness: ≤ 0.5/1000
Roughness: 0.2-0.4 u
Tolerance EXT: DIN2391, EN10305, GB/T 1619
Tolerance INT: H7,H8,H9
Protection: Anti-rust oil on inside and outside surface, plastic caps in both ends.
Packing: Bundle with steel strip and PE sheet or wooden case
Chemical Composition:
Steel grade
Chemical composition,%
C
Si
Mn
P
S
Cr
≤
20#
0.17-0.24
0.17-0.37
0.35-0.65
16Mn
≤0.2
≤0.5
1.00-1.60
0.03
0/03
0.25
ST52(E355)
≤0.22
≤0.55
≤1.6
0.025
0.025
0.25
SAE1026(25Mn)
0.22-0.28
0.15-0.35
0.6-0.9
0.04
0.05
/
45#
0.42-0.5
0.17-0.37
0.5-0.8
0.025
0.02
0.25
Mechanical Property:
Delivery
cold finished(hard)(BK)
Cold drawn and stress-relieved(BK+S)
condition
Steel grade
Rm MPa
Elongation
Rm MPa
ReH MPa
Elonggation
A5(%)
A5(%)
20#
≥550
≥8
≥520
≥375
≥15
16Mn
≥640
≥5
≥600
≥520
≥14
ST52(E355)
≥640
≥5
≥600
≥520
≥14
SAE1026
≥640
≥5
≥600
≥510
≥12
45#
≥650
≥5
≥600
≥510
≥12
Standard Size:
I.D(mm)
O.D(mm)
WT(mm)
I.D(mm)
O.D(mm)
WT(mm)
I.D(mm)
O.D(mm)
WT(mm)
40
50
5
90
100
5
140
156
8
40
52
6
90
105
7.5
140
160
10
40
55
7.5
90
110
10
140
165
12.5
40
58
9
90
114
12
140
168
14
50
60
5
95
105
5
140
170
10
50
65
7.5
95
110
7.5
140
180
20
50
70
10
100
110
5
150
170
10
60
70
5
100
115
7.5
150
175
12.5
60
72
6
100
120
10
150
180
15
60
75
7.5
100
125
12.5
160
180
10
60
80
10
100
127
13.5
160
185
12.5
63
73
5
100
130
15
160
190
10
63
75
6
110
125
7.5
160
200
20
63
76
6.5
110
130
10
170
190
10
63
78
7.5
110
140
15
170
195
12.5
63
80
8.5
115
130
7.5
170
200
15
63
83
10
115
135
10
180
200
10
70
80
5
120
135
7.5
180
205
12.5
70
82
6
120
140
10
180
210
15
70
85
7.5
120
145
12.5
180
220
20
70
90
10
120
150
15
200
220
10
75
85
5
125
140
7.5
200
225
12.5
75
90
7.5
125
145
12.5
200
230
15
75
95
10
125
150
12.5
200
235
17.5
80
90
5
125
152
13.5
200
245
22.5
80
92
6
125
155
15
220
250
15
80
95
7.5
125
160
17.5
220
270
25
80
100
10
130
145
7.5
220
273
26.5
80
102
11
130
150
10
240
270
15
80
105
12.5
130
160
15
250
290
20
80
110
15
135
160
12.5
250
299
24.5
Special requirement
230.5
254
11.75
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SHANDONG ZHUOSHENG STEEL LIMITED.
Hot-selling products are in stock, with a delivery time of 5-12 days. The shipping schedule is tight and can reach ports in various places. Local freight services are provided in many countries.