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YT 20H
Seamless Steel Honed Tube

Description :
Seamless tube: JIS STKM13C/ DIN ST52/ ASTM A106/ SAE1020 and welded pipe: DIN ST52.3 are offered. Seamless pipe withstands higher pressure than welded tube without splits. But, roundness of welded pipe is superior to seamless pipe. After honing, carbon steel pipe of mechanical structure use has precision diameter, smooth surface, and excellent performance of oil storage. It can work smoothly without pauses and has longer working life. Applies to hydraulic cylinders tube, pneumatic cylinders tube, forklift, crane, excavator, punching machine, and other kinds of labor-saving automatic mechanical engineering.

Product Application :

Specification :

ID
m/m
OD
m/m
Working
Pressure
kg/mm²
18
31
751
20
30
520
25
35
416
30
40
346
32
42
325
35
45
297
38
50
330
38.1
50.8
335
40
46
156
40
48
208
40
50
260
40
55
390
45
55
231
45
60
346
50
57
145
50
58
166
50
60
208
50
65
312
50
70
416
50.8
63.5
260
55
65
189
55
70
283
57
70
240
60
70
173
60
72
208
60
75
260
60
80
346
63
71
132
63
73
165
ID
m/m
OD
m/m
Working
Pressure
kg/mm²
63
76
215
63
80
280
63.5
76.2
210
65
75
160
65
80
240
65
85
320
70
80
148
70
82
178
70
85
238
70
90
297
75
85
138
75
90
208
75
95
270
76.2
88.9
170
80
90
130
80
95
195
80
100
260
82.55
95
160
82.55
98.4
200
85
95
122
85
101
203
90
100
115
90
105
173
90
110
231
95
110
165
95
115
220
100
109
94
100
110
104
100
114
146
ID
m/m
OD
m/m
Working
Pressure
kg/mm²
100
115
156
100
116
166
100
120
208
100
125
260
100
130
312
101.6
117.5
160
105
120
150
105
125
200
110
120
95
110
125
142
110
130
189
115
130
140
120
132
104
120
135
130
120
140
173
125
137
100
125
140
125
125
145
166
125
152
224
127
146
155
130
142
96
130
150
160
130
153
190
140
153
96
140
160
148
140
165
185
140
170
225
150
160
70
150
163
90
ID
m/m
OD
m/m
Working
Pressure
kg/mm²
150
168
125
150
170
140
150
175
173
150
180
210
160
172
78
160
178
117
160
180
135
160
185
162
160
190
195
165.1
190.5
160
170
190
125
170
195
150
177.8
203.2
150
177.8
215.9
220
180
196
92
180
202
127
180
216
208
200
216
83
200
232
166
200
242
210
203.2
228.5
130
225
254
135
250
267
71
250
290
170
250
298
200
300
318
62
300
350
173
350
420
208
     
* Other specifications can be ordered, please contact with us!

Detail :

  • ID : Ø 18~350mm
  • OD : Ø 30~42mm
  • Length : 3000~8000mm
  • Special Length : 13M
  • Surface Roughness :Ra0.4-Ra0.8
  • ID Accuracy : H7, H8, H9

Application :

  • Hydraulic cylinder
  • Pneumatic cylinder
  • Precise machine pipes
  • Agriculture machine
  • Boiler construction
  • Machinery :
    • Stamping machine
    • Punching machine
    • Blow molding machine
    • Plastic injection machine
    • Food machine
    • Forklift
  • Automobiles:
    • Crane
    • Truck
    • Truck lifter
    • Shock absorber of car, motorcycle, bicycle
  • Furniture: gas spring
  • Sport equipments
  • Medical equipments
  • Door closer
  • Jack

Material :

Our Material
Material No.
Similar International Grade
Suitable for
JIS G3445
STKM13C
   ASTM MT1020 / BS ERWC3 / DIN ST45 / NF TU37b / ISO TS4 ∨Carbon steel tubes for machine structural purpose
DIN 2391
ST52
1.0580
 JIS STKM19A / ASTM 1524 / EN E355 / ISO TS18 ∨Mechanical and automotive engineering
ST52 BK+S
1.0580
   ∨Low deformability without heat treatment after cold forming process and stress-relief annealing
DIN 2393
ST52.3
1.0570
 ISO Gr.1 ∨Construction of chemical plant, pipe work and mechanical engineering use
ASTM A106
1.0405
 JIS STPT410 / BS HFS410 / DIN ST45.8 / NF TU42c ∨Seamless carbon steel pipe for high temperature service
∨Suitable for bending, flanging, welding and similar forming operations
* Above similar steel grades are only for your reference, please kindly refer to each standard for further differences.
* Other specification and material can be ordered.