good quality good performance hydraulic tube honed
| Place of Origin |
Shandong, China |
| Certification |
ISO |
| Thickness |
2, 30 |
| Application |
Hydraulic Pipe |
| Surface Treatment |
good quality after coating |
| Technique |
Cold Rolled, cold drawn-SRB /Polished-SRB |
| Standard |
|
| Alloy Or Not |
Is Alloy |
| Grade |
|
| Secondary Or Not |
Non-secondary |
| Special Pipe |
hydraulic cylinder tube |
| Section Shape |
Round |
Product Features
| Material | 20# ,45# ,Q345B,Q345D,25Mn,27sIMn,30CrMo, E355/st52, SAE1026... |
| Standard | DIN2391, EN10305, ASTM A519, GB/T 8713, GB/T3669... |
| | OD ID |
| 30-350mm 2-30mm |
| Straightness | 1/1000 1/500 |
| Surface | polished or coating |
| Delivery time | 25-45days |
| Packing | Bundled with knitted plastic bag, wooden cases or according to customers' request. |
| application | Fluid and gas transport,decoration, construction,medical equipment, aviation,
boiler heat-exchanger and other fields |
| Steel Grade | C | Si | Mn | P | S | Cr | Ni | Cu | Al |
| 20# | 0.17-0.24 | 0.17-0.37 | 0.35-0.65 | 0.035 | 0035 | 0.250 | 0.250 | / | / |
| 45# | 0.42-0.50 | 0.17-0.37 | 0.50-0.80 | 0.035 | 0.035 | 0.250 | 0.300 | / | / |
| Q345B | ≤0.2 | ≤0.5 | 1.00-1.60 | 0.030 | 0.030 | 0.300 | 0.250 | 0.08 | / |
| Q345D | ≤0.2 | ≤0.5 | 1.00-1.60 | 0.030 | 0.030 | 0.250 | 0.250 | 0.150 | 0.015 |
| 25Mn | 0.22-0.29 | 0.17-0.37 | 0.70-1.00 | 0.035 | 0.035 | / | / | / | / |
| 27SiMn | 0.24-0.32 | 1.10-1.40 | 1.10-1.40 | 0.035 | 0.035 | 0.300 | 0.300 | / | / |
| E355 | ≤0.22 | ≤0.55 | ≤1.6 | 0.025 | 0.025 | 0.250 | 0.250 | / | / |
| SAE1026 | 0.22-0.28 | 0.15-0.35 | 0.60-0.90 | 0.040 | 0.050 | / | / | / | / |
| steel grade | | | | | Elongation(BK) |
| 20# | ≥520 | ≥375 | ≥15 | ≥550 | ≥8 |
| 45# | ≥600 | ≥520 | ≥10 | ≥640 | ≥5 |
| 16Mn | ≥600 | ≥520 | ≥14 | ≥640 | ≥5 |
| 25Mn | ≥600 | ≥510 | ≥15 | ≥640 | ≥5 |
| 27SiMn | ≥760 | ≥610 | ≥10 | ≥800 | ≥5 |
| ST45 | ≥520 | ≥375 | ≥15 | ≥550 | ≥5 |
| E355 | ≥600 | ≥520 | ≥14 | ≥640 | ≥5 |
| SAE1026 | ≥600 | ≥510 | ≥15 | ≥640 | ≥5 |
seamless pipe normal size
| 55*70 | 100*114 | 150*180 | 200*225 |
| 60*70 | 100*115 | 155*180 | 200*230 |
| 60*75 | 100*120 | 160*175 | 200*245 |
| 60*78 | 100*125 | 160*180 | 200*250 |
| 63*73 | 105*125 | 160*185 | 220*250 |
| 63*75 | 110*125 | 160*190 | 220*270 |
| 63*76 | 110*130 | 160*195 | 225*250 |
| 63*78 | 115*130 | 165*190 | 240*273 |
| 65*80 | 115*135 | 165*205 | 250*290 |
| 70*80 | 120*140 | 170*200 | 250*300 |
| 70*82 | 125*140 | 180*200 | 260*300 |
| 70*85 | 125*145 | 180*205 | 280*323 |
| 70*90 | 125*150 | 180*210 | 280*355 |
| 75*90 | 130*150 | 180*215 | 300*350 |
| 80*92 | 130*155 | 180*220 | 200*213 |
| 80*95 | 130*160 | 185*205 | 200*216 |
| 80*100 | 135*160 | 185*215 | 250*266 |
| 85*100 | 140*160 | 185*220 | other size customize |
| 90*105 | 140*165 | 190*210 |
Delivery Condition
1. BK(+C)
the final heat treatment after cold forming, threfore small steel pipe plasticly, the plasticly degree does not guarantee
2. 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
3. NBK(+N)
after cold forming, eventually above phase transition point, in a protective atmosphere of annealing oxidation medium
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. GBK(+A)
after cold forming, annealing in non oxidizing medium protective gas
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