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High Precision Hydraulic Cylinder Seamless Honed Pipes

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

Model NO.
seamless honed Pipes
Precision of Honed Pipes
H7, H8, H9
Certificate of Honed Pipes
API
Roughness of Honed Pipes
Ra 0.8
Trademark
Seamless Honed Pipes
Specification
as per the clients
Origin
China
HS Code
72284000
Model NO.
seamless honed Pipes
Precision of Honed Pipes
H7, H8, H9
Certificate of Honed Pipes
API
Roughness of Honed Pipes
Ra 0.8
Trademark
Seamless Honed Pipes
Specification
as per the clients
Origin
China
HS Code
72284000
We are professional High Precision cold drawn seamless honed Pipes 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
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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