Cold Rolling Honed Pipe Polished and Srb for Hydrualic Cylinder Using
Specifications
Grade :45# , 20#, Q345B, 25Mn, 16Mn E355 St52MOQ: 5Ton
ISo9001 BKS Bk BKw NBk
fast shipment
cold rolled tube manufactu
Product Name: cold rolling honed pipe
Main products of Xinpeng Srb tube
Specification:
Standard |
DIN2391, DIN2445, EN10305, GB/T 3639, GB 8713 |
Grade |
ST35(E235), ST37, ST24(E255), ST52(E355), 10#, 20#, 35#, 45# |
O.D. |
30MM-400MM |
W.T. |
2MM-30MM |
Surface Treatment |
bare, varnished, oiled, anti-corrosion coating as request |
Packing |
1. bundle packing 2. marking as per customer's requests 3. paint on the pipe as per customer request 4. pipe caps as customer request |
Condition of Delivery |
1. NBK(+N) after cold forming, eventually above phase transition point, in a protective atmosphere of annealing oxidation medium 2. GBK(+A) after cold forming, annealing in non oxidizing medium protective gas 3. BK(+C) the final heat treatment after cold forming, therefore small steel pipe plastically, the plastically degree does not guarantee 4. BKW(+LC) after final heat treatment, a tiny cold drawing deformation, continue again when machining steel pipe allowed inside certain limits cold deformation(bending, flaring) 5. BKS(+SR) have a stress relief after cold forming, heat treatment, steel pipe can be carried out within a certain limit in the appropriate processing again |
Some Dimension:
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 |
|
Mechanical Properties:
Condition |
Material 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 |
Finished products
En10305-2 E355 Dom Cold drawn welded tube welded pipe
Process
1.
Application:
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, forestry machinery, etc.
About our service:
1. Cargo track service during transporting and feedback service after cargo is loaded on board
2. Flexible terms of payment by
3. Big discount for repeat customers
4. Smooth delivering procedure
5. Payment Terms: T/T, L/C And so on.
St52 Cylinder Tubing
St52 seamless steel tubing
st52 cold rolled tube
st52 cold rolling tube
st52 honed tube
st52 honing tube
st52 honging steel pipe
st52 honing piping
st52 honed pipe
st52 honed steel pipe
st52 honing steel piping
Carbon steel cold finished tube
Carbon steel cold finished pipe
Carbon steel Seamless st52 tubes
Cold rolled st52 seamless tube
cold rolling cylinder tube
Cylinder Seamless steel tube
cold drawn st52.4 tubing
hydraulic precision steel tube
precision piping
precision cylinder steel pipe
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