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High Precision Hydraulic Cylinder Seamless Honed Tubes

China High Precision Hydraulic Cylinder Seamless Honed Tubes, Find details about China Seamless Honed Tubes, Honed Tubes from High Precision Hydraulic Cylinder Seamless Honed Tubes

Model NO.
seamless honed Tubes
Precision of Honed Tubes
H7, H8, H9
Certificate of Honed Tubes
API
Roughness of Honed Tubes
Ra 0.8
Trademark
Seamless Honed tubes
Specification
as per the clients
Origin
China
HS Code
72284000
Model NO.
seamless honed Tubes
Precision of Honed Tubes
H7, H8, H9
Certificate of Honed Tubes
API
Roughness of Honed Tubes
Ra 0.8
Trademark
Seamless Honed tubes
Specification
as per the clients
Origin
China
HS Code
72284000
We are professional High Precision cold drawn seamless honed Tubes factory from china
Grade: ST52,ST52.3,CK45,Q345B,EN355,16Mn,STKM13C,SAE1020/1026/4140,42CrMo,TP304/316 etc.
OD metric size: 30 to 2000 mm
OD imperial size: 1.5" to 50" (inch)
Length: max 20 Meter
Straightness: <0.5 mm/m
Tolerance OD: DIN 2391
Tolerance ID: ISO H8, H9, H10
Roughness(Ra): <0.8
Type: BK+S,high precision cold drawn,seamless honed,burnished
High Precision Hydraulic Cylinder Seamless Honed Tubes

Internal surface treatment method: honing or skiving and roller burnishing
OD tolerance: as per DIN2391-1
ID tolerance: H7,H8,H9,H10 or given by customer.
W.T tolerance(eccentricity): +/-5%
Bore roughness(Ra): 0.3um max.
Chemical composition requirement of ST52 material:
 

Inside Dia (mm) ID Tolerance (mm) WT Tolerance            (mm)  
 
H7 H8 H9 H10  
≤30 +0.021/0 +0.033/0 +0.052/0 +0.084/0 ±7.5%                      
 >210mm ±10%		  
30 - ≤50 +0.025/0 +0.039/0 +0.062/0 +0.100/0  
50 - ≤80 +0.030/0 +0.046/0 +0.074/0 +0.120/0  
80 - ≤120 +0.035/0 +0.054/0 +0.087/0 +0.140/0  
120 - ≤180 +0.040/0 +0.063/0 +0.100/0 +0.160/0  
180 - ≤250 +0.046/0 +0.072/0 +0.115/0 +0.185/0  
250 - ≤315 +0.052/0 +0.081/0 +0.130/0 +0.210/0  
315 - ≤700 +0.057/0 +0.089/0 +0.140/0 +0.230/0  
 

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