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Help CenterGB/t 3639 Precision Seamless CDS Hydraulic and Pneumatic Cylinder Tube
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Commodity name: GB/t 3639 Precision Seamless CDS hydraulic and pneumatic cylinder tube
Parameter:
1.Raw material:10#,20#,35#,45#,Q345,16Mn,25Mn,27SiMn,42CrMo,Aisi1020,Aisi1045,st35,St45,St52etc
2.ID:30-250mm
3.ID tolerance:H8,H9 Surface roughness:Ra 0.02— 0.4μm
4. Final supply condition:cold drawn and stress-relieved(BK+S)
5. Machining allowance:0.5-1.5mm
6.Wall thickness:10%×ID
Dimensions tolerance
OD(mm) |
ID (mm) |
Tolerance |
||||
OD (mm) |
ID (mm) |
Wall thickness deviation (mm) |
Ovality (mm) |
Curvature(mm/m) |
||
40-74 |
30-65 |
±.01 |
-0.3,-0.5 |
≤0.5 |
≤0.1 |
0.3 |
74-98 |
65-85 |
±.01 |
-0.4,-0.6 |
≤0.5 |
≤0.15 |
0.3 |
100-116 |
85-100 |
±.02 |
-0.4,-0.6 |
≤0.6 |
≤0.15 |
0.3 |
124-134 |
110-115 |
±.02 |
-0.6,-0.8 |
≤0.6 |
≤0.20 |
0.3 |
140-158 |
120-135 |
±.02 |
-0.7,-0.9 |
≤0.8 |
≤0.20 |
0.3 |
165-176 |
140-150 |
±.02 |
-0.7,-0.9 |
≤0.8 |
≤0.20 |
0.3 |
188-203 |
160-180 |
±.02 |
-0.7,-0.9 Honed |
≤0.8 |
≤0.20 |
0.3 |
Tolerance on ID
No. |
Inside diameter(mm) |
ID machining allowance(mm) |
1 |
50-80 |
0.5-0.8 |
2 |
81-125 |
0.7-1.1 |
3 |
125-200 |
0.9-1.2 |
4 |
200-250 |
1-1.5 |
Other dimension can be customized | ||
Commercial length
No. |
ID Min.(mm) |
Length(mm) |
1 |
50 |
700—2000 |
2 |
63 |
700—3000 |
3 |
80 |
700—4000 |
4 |
>90 |
700—6000 |
Other dimension can be customized | ||
Delivey conditions:
- Standard packing with plastic caps and strapped bundles.
- Commercial length 2000~10500mm,custom lengths upon request
- Surface protection
About our service:
1.cargo track during transporting and feedback service after cargo is loaded on board
2.flexible terms of payment by T/T and L/C
3.big discount for repeat customers
4.smooth delivering procedure
we can supply all kinds of steel pipes such as hot rolled seamless steel pipes ,cold drawn seamless steel pipes,honed pipes,cold drawn welded tubes(DOM tubes).
Welcome to inquiry at any time, we will try our best to serve you.
Management System Certification:
Production Process:
- Pretreatment : Acid cleaning- Parkerizing
- Cold drawn/cold rolled
- Annealing furnace—— stress-relieving (+SR)
- Straightener—— Straightening/ Leveling
- Straightness inspecting
- Dimension inspecting
- Sawing
- Lathe
- Surface Polishing
-
CNC Skiving Roller Burnishing Machine——honing
- Finished Products
- Application:Hydraulic cylinder tubes
Send Inquiry to This Supplier
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