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Specifications
1.s20c specification seamless steel pipe2.NO MOQ
3.Widly Used
4.Fast Shipment
5.Advantace Technology
s20c specification seamless steel pipe
1 OD32-500mm W.T.3.5-80mm 2 ISO certificated DIN2391 En10305 3 Straightness:0.3~1mm/m 4 Inside Roughness:0.4~0.8um
steel pipes for hydraulic use
Material: C20, CK45, etc. also ST52 if given enough time. our products are widely used in hydraulic industry and is very popular both home and abroad.
And we can also make our products according to the customers' needs.
Variety
Processing
| Cylinder diameter | Length /mm | Straightness | Size accuracy | Wall thickness/mm | Inner bore roughness |
Cold-drawn | ID30~OD250 | ≤13M | 0.3~1.0mm/m | H9-H11 | ±8% | 0.8~1.6um |
Honed tube | ID50~OD325 | ≤10M | 0.3~1.0mm/m | H7-H9 | ±8% | 0.4~0.8um |
Mechanics performance
Material | Tensile strength | Yield strength | Elongation
| Hardness |
Ck20 | 510 σ N/mm2 | 500σsN/mm2 | 5δs% | 175HB |
Ck45 | 660 σN/mm2 | 630σsN/ mm2 | 4δs% | 207HB |
ST52 | 580σ N/mm2 | 420σsN/ mm2 | 10δs% | 190HB |
27SiMn | 840σ N/mm2 | 805σsN/ mm2 | 7.5δs% | 230HB |
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 0 |
Production Process:
Pretreatment : Pickling—Phosphating—Saponification
Cold drawn/cold rolled
Annealing furnace——+SR
Straightener—— Straightening
Straightness inspecting
Dimension inspecting
Sawing
Skiving and Roller burnishing
Products inspecting
- Finished Products
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.
If there are any Question, please Feel free to send us inquiry.
We will provide the professional Explanation.
We always doing our Best!
Send Inquiry to This Supplier
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