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20 micron - 30 micron Piston Honed Tube , Telescopic Cylinder Tube
Key Attributes
Brand Name:
HY
Place of Origin:
China
Certification:
ISO9001:2008
Minimum Order Quantity:
5 tons
Price:
Negotiation
Supply Ability:
30tons a day
Delivery Time:
30days
Payment Terms:
L/C, T/T
Standard Packaging:
Anti rust oil to be applied on material and each rod to be packed in paper sleeve
Product Summary
20 micron - 30 micron Piston Honed Tube , Telescopic Cylinder Tube Detailed Product Description Telescopic Cylinder Tube and Piston Tube Our precision seamless tubes are suitable for the manufacture of pistons, telescopic cylinder. We can supply hard chrome plating for the telescopic cylinder tube as well, and the technical delivery conditions refer to the next page. A comparison of tubular piston rods versus solid piston rods of the same diameter based on identical
Product Custom Attributes
Highlight
30 micron Piston Honed Tube
,20 micron honed tubes
,Telescopic Cylinder Tube
Delivery Status:
Stress Relieving Annealed
Product Name:
Telescopic Cylinder Tube
Material:
Steel
Surface Treatment:
Chrome Plating
Chrome Thickness:
20-30 Micron
OD Tolerance:
ISO F7
Product Description
20 micron - 30 micron Piston Honed Tube , Telescopic Cylinder Tube
Detailed Product Description
Telescopic Cylinder Tube and Piston Tube
Our precision seamless tubes are suitable for the manufacture of pistons, telescopic cylinder. We can
supply hard chrome plating for the telescopic cylinder tube as well, and the technical delivery conditions
refer to the next page. A comparison of tubular piston rods versus solid piston rods of the same diameter
based on identical compressive, bending and torsional stresses show that the annular cross section
permits appreciable weight saving. By cold drawing, the tube piston rods have the decisive advantage of
more higher mechanical properties than the hot finished piston rods.
Chemical Composition
|
Grade |
C |
Si |
Mn |
P |
S |
Cu |
Ni |
Cr |
Mo |
|
CK20 |
0.17-0.24 |
0.17-0.37 |
0.35-0.65 |
≤0.035 |
≤0.035 |
≤0.25 |
≤0.30 |
≤0.20 |
/ |
|
CK45 |
0.42-0.50 |
0.17-0.37 |
0.35-0.65 |
≤0.035 |
≤0.035 |
≤0.25 |
≤0.30 |
≤0.20 |
/ |
|
ST52(16Mn) |
≤0.20 |
≤0.55 |
1.00-1.60 |
≤0.035 |
≤0.035 |
≤0.25 |
≤0.30 |
≤0.20 |
/ |
|
42CrMo4 |
0.38-0.45 |
0.15-0.40 |
0.60-0.90 |
≤0.035 |
≤0.035 |
/ |
/ |
0.90-1.20 |
≤0.25 |
Mechanical property
|
Grade |
Tensile Strength(MPa) |
Yield strength(MPa) |
Elongation % |
Remark |
|
CK20 |
≥580 |
≥480 |
15 |
CDS+KS |
|
CK45 |
≥620 |
≥520 |
15 |
CDS+KS |
|
ST52(16Mn) |
≥580 |
≥520 |
16 |
CDS+KS |
|
42CrMo4 |
≥980 |
≥850 |
14 |
I.H.+Q.T. |
CDS: Cold Drawn Seamless
BKS: Stress Relieved Annealed
I.H.+Q.T.: Induction Hardened + Quench and tempered
Telescopic Cylinder Tube OD Chrome Plated Requirements:
|
Chrome Thickness |
20-30 micron |
|
Surface Roughness |
Ra≤0.2 micron and Rt≤2 micro |
|
OD Tolerance |
ISO f7 on the diameter |
|
Ovality |
Half of the tolerance ISO f7 |
|
Straightness |
≤0.2mm/m |
|
Surface Hardness |
850-1150HV (vickers) |
|
Cohesion |
No cracks,breaking or detaching after thermic shock (warming up at 300 celius degrees and coolng in water) |
|
Porosity |
Tested according to ISO 1456/1458 and result according to ISO4540 rating 8-10 |
|
Salt Spray Test |
Test in natural salt spray according to ISO 9227/AST M B117 96 hours and result evaluation according to ISO4540 rating 8-10 |
Tolerance on ID
|
ID mm |
Values of tolerances are in microns |
|||
|
H7 |
H8 |
H9 |
H10 |
|
|
30 |
+21 |
+33 |
+52 |
+84 |
|
>30-50 |
+25 |
+39 |
+62 |
+100 |
|
>50-80 |
+30 |
+46 |
+74 |
+120 |
|
>80-120 |
+35 |
+54 |
+87 |
+140 |
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