Din2391 St52 Hydraulic Cylinder Honed Tube
Commodity name: Din2391 st52 hydraulic cylinder honed tube
1.Grade: 20#(ck20,aisi1020),45#(ck45,aisi1045),st52(Q345D,16Mn),25Mn,27SiMn
2.ID:30-250mm
3.ID tolerance:H8,H9
4.Surface roughness:Ra 0.02— 0.4μm
5. Final supply condition:cold drawn /cold rolled and stress-relieved(BK+S)
6. Machining allowance:0.5-1.5mm
7.Wall thickness:10%×ID
Variety
Processing |
Cylinder Diameter |
Straightness |
Size Accuracy |
W.T/mm |
Inner Bore Roughess |
Cold drawn/ Cold rolled |
ID30-250 |
0.3 |
H9-H11 |
±10% |
0.4~1.6um |
Honed tube |
ID50-250 |
0.3 |
H7-H9 |
±10% |
<0.4um |
Mechanics performance
Material |
Tensile strength |
Yield strength |
Elongation |
Hardness |
Ck20/20#/AISI1020 |
>520 N/ mm2 |
>375 N/mm2 |
>15% |
>85HB |
Ck45/45#/AISI1045 |
>600 N/ mm2 |
>520 N/ mm2 |
>15% |
>85HB |
ST52/16Mn/Q345D |
>600 N/ mm2 |
>520 N/ mm2 |
>15% |
>85HB |
25Mn/STKM 13C-T |
>600 N/ mm2 |
>530 N/ mm2 |
>15% |
>85HB |
Dimension tolerance
ID size |
ID deviation (mm) |
|||
H7 |
H8 |
H9 |
H10 |
|
30 |
+0.021 0 |
+0.033 0 |
+0.052 0 |
+0.084 0 |
>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 |
>315~400 |
+0.0527 0 |
+0.089 0 |
+0.140 0 |
+0.230 |
Delivey conditions:
- Standard packing with plastic caps and strapped bundles.
- Commercial length 2000~10500mm,custom lengths upon request
- Surface protection
We can supply cold drawn/cold rolled seamless tube,honed tube,hydraulic tube,please feel free to contact us.

We are a professional company which has manufactured seamless steel tube for several years in China, with good quality and pretty competitive price.
Include seamless structure, seamless transmission fluid, hot rolled seamless hydraulic prop, low-pressure boiler seamless pipe,oil Casing,and so on. We always be reliable partner to provide our products to you.
Mainly used for the general structure and the mechanical structure.It represents material (brand) : carbon steel 10# 20#, 45 # ;Alloy steel Q345, 20 Cr ,40 Cr, 30-35 CrMo, 42 CrMo, etc.
1.Fast Delivery:around 15 days below 200Metric Tons after received Deposit
(lot of high quality steel pipe in stock)
2. Quality Assured: Strictly acc. To International standard ASTM & BS & EN & JIS, with System ISO certification
3. Good Service: supplied professional technical guide free of charge at anytime;
4. Reasonable Price: to be better support your business
1. In bundle with steel strip, caps for both ends, marking,etc.standard exporting package
2. Container: 25 tons/container for pipe with usual outer diameter. For 20" container the max length is 5.8m;
For 40" container the max length is 11.8m.
3. Bulk carrier: It is no requirements to the length of the pipe. But its booking space time is long.
4. For precision steel pipe:In wooden cases,nylon bags, carton, wooden, pallet or in bulk
Process
Some Demension:
OD x WT |
OD x WT |
OD x WT |
OD x WT |
4*0.5 |
16*0.5 |
26*1.8 |
35*9.0 |
4*0.8 |
16*0.8 |
26*2.0 |
35*10 |
4*1.0 |
16*1.0 |
26*2.2 |
38*0.5 |
4*1.2 |
16*1.2 |
26*2.5 |
38*0.8 |
5*0.5 |
16*1.5 |
26*2.8 |
38*1.0 |
5*0.8 |
16*1.8 |
26*3.0 |
38*1.2 |
48*5.0 |
70*2.8 |
90*10 |
130*14 |
48*5.5 |
70*3.0 |
90*12 |
130*16 |
48*6.0 |
70*3.5 |
90*14 |
130*18 |
48*7.0 |
70*4.0 |
90*16 |
140*2.5 |
48*8.0 |
70*4.5 |
95*2.0 |
140*2.8 |
48*9.0 |
70*5.0 |
95*2.2 |
140*3.0 |
Tolerance in Dimension:
OD |
GB/T3639(GB8713) |
DIN2391(EN10305) |
Our Tolerence |
Best Quality |
4-30mm |
±0.10mm |
±0.08mm |
±0.05mm |
±0.02mm |
31-40mm |
±0.15mm |
±0.15mm |
±0.05mm |
±0.03mm |
41-50mm |
±0.20mm |
±0.20mm |
±0.05mm |
±0.03mm |
51-60mm |
±0.25mm |
±0.25mm |
±0.08mm |
±0.03mm |
61-70mm |
±0.30mm |
±0.30mm |
±0.10mm |
±0.05mm |
71-160mm |
±0.30mm |
±0.30mm |
±0.10mm |
±0.05mm |
Tolerance in WT |
±0.12mm |
±0.10mm |
±0.05mm |
±0.03mm |
|
||||
Process |
Diameter |
Length |
Precision |
Inner Hole Roughness |
Cold Rolled |
30-100mm |
≤12 m |
H8-H10 |
0.4-1.6 |
Cold Draw |
30-250mm |
≤12 m |
H8-H10 |
0.8-1.6 |
Honing |
40-500mm |
≤12 m |
H8-H9 |
0.4-0.8 |
Rolling |
40-400mm |
≤7 m |
H8 |
0.4 |
|
|
|
|
|
Inner Diameter |
H8 |
H9 |
H10 |
|
30mm |
±0.033 |
±0.052 |
±0.084 |
5-30mm |
30-50mm |
±0.039 |
±0.062 |
±0.100 |
±0.080 |
50-80mm |
±0.046 |
±0.074 |
±0.120 |
|
80-120mm |
±0.054 |
±0.087 |
±0.140 |
|
120-180mm |
±0.063 |
±0.100 |
±0.160 |
|
180-250mm |
±0.072 |
±0.115 |
±0.185 |
|
250-315mm |
±0.081 |
±0.130 |
±0.210 |
|
315-400mm |
±0.089 |
±0.140 |
±0.230 |
|
hydraulic cylinder tube st52 din2391
Mechanical Properties:
Condition |
Materail Grade |
T.S (MPa) |
Y.S (MPa) |
Elongation(%) |
BKS |
ST35 (10#) |
≥420 |
≥315 |
≥14 |
BKS |
ST45(20#) |
≥520 |
≥375 |
≥12 |
BKS |
ST52(16Mn) |
≥580 |
≥420 |
≥10 |
GBK |
ST35 (10#) |
≥315 |
|
≥35 |
GBK |
ST45(20#) |
≥390 |
|
≥32 |
GBK |
ST52(16Mn) |
≥490 |
|
≥30 |
NBK |
ST35 (10#) |
340-470 |
≥235 |
≥32 |
NBK |
ST45(20#) |
440-570 |
≥255 |
≥30 |
NBK |
ST52(16Mn) |
490-630 |
≥335 |
≥28 |
Application:
hydraulic cylinder tube st52 din2391 widely used in hydraulic system with precision steel tube, injection molding machine with precision steel tube, hydraulic press with precision steel tube, shipbuilding with steel tube, EVA foaming, hydraulic machinery, hydraulic cutting machine, shoe making machinery, hydraulic equipment, high pressure tubing, hydraulic tubing, card sets of joints, pipe joints, rubber machinery, forging machinery, casting machinery, engineering machinery, automotive high pressure steel pipe concrete pump, sanitation vehicle, automobile industry, shipbuilding industry, metal processing, military industry, diesel engine, the internal combustion engine, air compressor, construction machinery, forestrymachinery, etc.
package
Xinpeng have passed ISO9001 verified
Send Inquiry to This Supplier
You May Also Like
-
ASTM A106 Grade B Seamless Carbon Steel Pipe | ASME B36.10M | High-Quality Chinese SupplierUS$ 0.45 - 0.55MOQ: 100 Kilograms
-
1m FRP Round Tube, Epoxy Resin, 25mm ID, Lightweight, High Stiffness, Smooth SurfaceNegotiableMOQ: 300 Cubic Meters
-
Small Diameter Cold Drawn Precision Seamless Steel Pipe for Instrument Equipment Automotive PartsNegotiableMOQ: 1 Ton
-
304 Stainless Steel Pipe Seamless 1mm-12mm Wall Thickness OD 6mm-219mm Industrial TubeNegotiableMOQ: 1 Ton
-
High Pressure Boiler Tube Supplier From China – ASTM A192 / High Pressure Boiler Seamless Tube ASTM A192 / ASME SA192NegotiableMOQ: 1 Metric Ton
-
300 Series Stainless Steel Pipe 56 Inch Square Tube ASTM Standard Seamless 2B 200 Series Bending Welding Cutting AvailableNegotiableMOQ: 1 Ton
-
40cr Alloy Steel Tunnel Roof Support Hollow Grouting Anchor RodUS$ 585 - 615MOQ: 10 Metric Tons
-
Cold Drawn Precision SAE 1020 ST52 Custom Size Seamless Carbon Steel Pipe for Hydraulic System Mechanical EquipmentUS$ 570 - 590MOQ: 10 Tons
-
A192 Seamless Carbon Steel PipeUS$ 510 - 530MOQ: 10 Tons
-
Steel Pipe & Tube & Alloy Steel,Q355B/C/D/E、Q420、Q460、40Cr、42CrMo、35CrMo、20CrMnTi、20Cr、45Mn2NegotiableMOQ: 5 Metric Tons






