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Across several industries, a hydraulic cylinder tube is referred to as a Honed tube. One of the most important materials of manufacturing hydraulic cylinders are Honed Tubes. This type of tubing is ordinarily honed in the inside diameter of a Ready to Honed Tube. Which is why it is also known as honed ID tubing. Honing is an abrasive or a grinding machining process that delivers a precision surface on a metal workpiece for e.g. Hydraulic Tubes. During this process, an abrasive grinding stone or grinding wheel is scrubbed against a Pre Honed Tube along a hegemonized path. Honing is a process which is fundamentally used to enhance the geometric form of a surface.
There are numerous examples of hones, although all these examples consist of either one or more abrasive stones that are held under pressure against the surface of the Honing Cylinder Tubes they are worked upon.
However, there is an improvement also noted on the surface of these Honed Tubes. Because honing is an expensive process, honing is performed on Hydraulic Honed Tubes which require the most superlative degree of precision. One of the main benefits of using Bright Finish Seamless Honed Tubes is that they are precise and have an accurate form, with a smoother inner surface.
| Our Material | Material No. | Similar International Grade | Suitable for… |
JIS G3445 STKM13C | ASTM MT1020 / BS ERWC3 / DIN ST45 / NF TU37b / ISO TS4 | Carbon steel tubes for machine structural purpose | |
| DIN 2391 ST52 | 1.0580 | JIS STKM19A / ASTM 1524 / EN E355 / ISO TS18 | Mechanical and automotive engineering |
| ST52 BK+S | 1.0580 | Low deformability without heat treatment after cold forming process and stress-relief annealing | |
| DIN 2393 ST52.3 | 1.0570 | ISO Gr.1 | Construction of chemical plant, pipe work and mechanical engineering use |
| ASTM A106 | 1.0405 | JIS STPT410 / BS HFS410 / DIN ST45.8 / NF TU42c | Seamless carbon steel pipe for high temperature service Suitable for bending, flanging, welding and similar forming operations |
ST52 ST45 E355 1020 1026
Raw materials- Cold drawn/rolled- Heat treatment (BKS)- Honed - packing.
| Processing Way | Cylinder Barrel ID (mm) | Max Length (mtr) | Straightness (mm/mtr) | ID Tolerance | Wall Thickness Tolerance (mm) | ID Roughness (μm) |
| Cold Drawn | 40-320 | 12 | 0.2-0.5 | H8-H10 | ±5% | 0.8-1.6 |
| Cold Rolled | 12-100 | 12 | 0.2-0.5 | H8-H10 | ±5% | 0.8-1.2 |
| Cold Drawn+Honed | 40-500 | 8 | 0.2-0.3 | H7-H9 | ±5% | 0.2-0.8 |
| Cold Drawn-SRB | 40-400 | 7 | 0.2-0.3 | H8-H9 | ± 5% | 0.2-0.4 |
| Deepth Drilling-Honed | 320-1100 | 8 | 0.2-0.3 | H7-H9 | ±8% | 0.2-0.8 |
| Deepth Drilling-SRB | 320-600 | 7 | 0.2-0.3 | H8-H9 | ±8% | 0.2-0.4 |
Inside dia - specified mm | 10~18 | 18~30 | 30~50 | 50~80 | 80~120 | 120~180 | 180~250 | 250~315 |
| H7 | +0.018 -0 | +0.021 -0 | +0.025 -0 | +0.03 -0 | +0.035 -0 | +0.04 -0 | +0.046 -0 | +0.052 -0 |
| H8 | +0.027 -0 | +0.033 -0 | +0.039 -0 | +0.046 -0 | +0.054 -0 | +0.064 -0 | +0.072 -0 | +0.081 -0 |
| H9 | +0.043 -0 | +0.052 -0 | +0.062 - 0 | +0.074 -0 | +0.087 -0 | +0.1 -0 | +0.115 -0 | +0.13 -0 |
| Grade | C | Si | Mn | P | S | Cr | Mo |
| St 45 (DIN1.0408) | 0.21 max | 0.35 max | 0.40 min | 0.025 max | 0.025 max | / | / |
| St 52 (DIN1.0580) | 0.22 max | 0.55 max | 1.60 max | 0.025 max | 0.025 max | / | / |
| E355 | 0.22 max | 0.55 max | 1.60 max | 0.025 max | 0.025 max | / | / |
| 1020 | 0.18-0.25 | / | 0.30-0.60 | 0.040 max | 0.050 max | / | / |
| 1026 | 0.22-0.28 | / | 0.60-0.90 | 0.040 max | 0.050 max | / | / |
| Si(Max) | Mn (Max) | C Max) | P (Max.) | S (Max) |
|---|---|---|---|---|
| 0.55 | 1.60 | 0.22 | 0.025 | 0.025 |
| Grades | Delivery Conditions | Tensile Strength Rm (Mpa) | Elongation in the longitudinal direction Al (%) |
| St 45 | +A (GBK) | 390 min | 21 min |
| St 52 | +A (GBK) | 490 min | 22 min |
| E355 | +A (GBK) | 450 min | 22 min |
| 1020 | +A (GBK) | 390 min | 21 min |
| Tensile strength Min | Yield Point Min | Elongation % Min |
|---|---|---|
| 580 N/mm2 | 420 N/mm2 | 10 |
| Outer Diameter | Excentricity |
|---|---|
| 125 mm | 5 % |
| > 125 mm | 7 % |
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