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Basic Info.
Product Description
Xuanlin Mainly Supply Hydraulic Cylinder Tube,Honed Tube and Cold Finished Tube
1. Hydraulic Cylinder Tube------Used in the hydraulic cylinder of the heavy machinery, Cranes, excavator also forklifts. Material is various, mainly STKM-13CT ST52 CK45 and 1020. We can work and get the mechanical property of the clients need and extended the life of the hydraulic cylinder.
2. Honed tube ----- used in Elevator buffer and Hydraulic Cylinder .This kind tube have a better roughness inner the tube,ra0.2-0.4um and can use directly in the hydraulic cylinder tube. Range: ID 50-250mm and Length can work at most 6M.
3. Cold finished tube---- Widely Used. Processing range 30-300mm, biggest length is 11M.
| OD | GB/T3639 | DIN2391 (EN10305) | Our Tolerance | Best Quality | |
| 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 | |
| 160mm-230mm | ±0.50mm | ±0.50mm | ±0.40mm | | |
| Tolerance in WT | ±0.12mm | ±0.10mm | ±0.05mm | ±0.03mm | |
| PROCESS | |||||
| Process | Diameter | Length | | | |
| Cold Rolled | 30-100mm | ≤10 m | | | |
| Cold Draw | 30-250mm | ≤10 m | | | |
| Honing | 40-500mm | ≤10 m | | | |
| Skived burnished | 40-400mm | ≤76m | | | |
| HONED OR SRB TUBE TOLERANCE | |||||
| 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 | ||
| Hydraulic Cylinder Honing Tube | |||||
| 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 | >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 | |
| Steel Grade | Chemical Composition % | |||||
| C | Si | Mn | P | S | Al | |
| ≤ | ≥ | |||||
| 20# | 0.17-0.24 | 0.17-0.37 | 0.35-0.65 | 0.035 | 0.035 | / |
| 45# | 0.42-0.50 | 0.17-0.37 | 0.50-0.80 | 0.035 | 0.035 | / |
| Q345B | ≤0.2 | ≤0.5 | 1.00-1.60 | 0.03 | 0.03 | / |
| Q345D | ≤0.2 | ≤0.5 | 1.00-1.60 | 0.03 | 0.03 | 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 | / |
| ST52 | ≤0.22 | ≤0.55 | ≤1.6 | 0.025 | 0.025 | / |
| SAE1026 | 0.22-0.28 | 0.15-0.35 | 0.60-0.90 | 0.04 | 0.05 | / |
| Delivery Condition | Cold Finished (hard) (BK) | Cold Drawn and Stress-relieved (BK+S) | |||
| Steel Grade | Tensile Strength (Mpa) | Elongation (%) | Tensile Strength (Mpa) | Yield Strength (Mpa) | Elongation (%) |
| 20# | ≥550 | ≥8 | ≥520 | ≥375 | ≥15 |
| 45# | ≥640 | ≥5 | ≥600 | ≥520 | ≥10 |
| 16Mn | ≥640 | ≥5 | ≥600 | ≥520 | ≥14 |
| 25Mn | ≥640 | ≥5 | ≥600 | ≥510 | ≥15 |
| 27SiMn | ≥800 | ≥5 | ≥760 | ≥610 | ≥10 |
| ST52 | ≥640 | ≥5 | ≥600 | ≥520 | ≥14 |
| SAE1026 | ≥640 | ≥5 | ≥600 | ≥510 | ≥15 |
Shandong Xuanlin Metal Materials Co., Ltd., was founded in 2008, covers an area of 10, 000 square metres. We are a professional manufacturing and trading company of metal building materials. We currently sell domestically and export worldwide to places such as Africa, North America and the Middle East. Our main products are aluminum foil, electrical cable, copper tube, boiler tube, casing pipe, honed tube, steel wires, PPGI/gi coil, galvanized pipe, steel structures. We have more than 30 production lines which can produce customize according to your requirements.
We ensure product quality through systematic testing with technically advanced equipment. Our company has a rang of well established long-term relationships with many domestic steel companies including Bao Steel Group, Hengyang Group, Yieh Phui(China) and Ma Steel Trading. Our advantage is that we are close to national highways and high speeds, 100 kilometers from Jinan Airport and 350 kilometers Tianjin Port...The benefits of light weight, low cost, high corrosion resistance and easy installation with short construction periods have LED to steel structures becoming more widly used in modern building construction with varied applications such as factory workshops, supermarkets, cold storage rooms, plazas, villas and more.
We look forward to building successful business relationships with customers around the world.
Q. Are you a factory or a pure trading company?
A: We are a factory.
A: for the same quality, our price is lower, for the same price, our quality is the best better.
Q. What are your company's strengths?
A: Factory spot, competitive prices, excellent quality, support factory inspection, video call at any time, technical support in 24/7. Simultaneously, we have participated in many international projects.
Q. Whether to support OEM or ODM?
A: We welcome customers to cooperate with us by OEM or ODM. We have a professional technical team, can be customized according to drawings or requirements.
Q. What trade terms do you usually use?
A: We use FOB, CIF, C&R, DDU, DDP.
Q. What is your usual delivery time?
A: From the execution date of the PI, spot products will be delivered within 3 days, and customized products within 15 days. Special circumstances, please communicate again. All our products have strict quality inspection before they leave the factory, to ensure that you receive the goods with excellent quality.
Q. What are your terms of payment?
A: We use TT and LC, or any other payment method available.