DIN2391 Q345D H8 Honed Cylinder Tube 40-500mm ID with Cold Drawing Normalizing Treatment
Price:
Negotiable
MOQ:
2Tons
Delivery Time:
30days
Brand:
Joyruns
Product Description
DIN2391 Q345D H8 Cold Drawing Normalizing Honed Cylinder Tube
Our honed cylinder tubes are precision-engineered to meet DIN2391 standards with H8/H9 tolerance levels, providing exceptional dimensional accuracy for demanding industrial applications. These tubes undergo cold drawing and normalizing treatments to ensure superior mechanical properties and dimensional stability.
Precision Manufacturing Capabilities
- Inner diameter tolerance: H8/H9 precision standards
- Available with burnishing and honing services
- Customizable surface roughness requirements
- Comprehensive quality control for diameter tolerance, straightness, surface hardness, and chrome layer thickness
Material Specifications & Chemical Composition
| Material | C | Si | Mn | S(≤) | P(≤) | Cr | Ni | Mo | Other |
|---|---|---|---|---|---|---|---|---|---|
| A106B / C20# | 0.17-0.23 | 0.17-0.37 | 0.35-0.65 | 0.035 | 0.035 | ≤0.25 | ≤0.30 | Cu≤0.25 | |
| CK45# | 0.42-0.50 | 0.17-0.37 | 0.50-0.80 | 0.035 | 0.035 | ≤0.25 | ≤0.30 | Cu≤0.25 | |
| Q345B | ≤0.20 | ≤0.55 | 1.00-1.60 | 0.040 | 0.040 | V:0.02-0.15 | Nb:0.015-0.06 | Ti:0.02-0.20 | Alt≥0.015 |
| ST52 / E355 / 16Mn | ≤0.20 | ≤0.55 | 1.00-1.60 | 0.045 | 0.045 | V:0.02-0.15 | Nb:0.015-0.06 | Ti:0.02-0.20 | 16Mn |
| 25Mn | 0.22-0.30 | 0.17-0.37 | 0.70-1.00 | 0.035 | 0.035 | ≤0.25 | ≤0.25 | ||
| 27SiMn | 0.24-0.32 | 1.10-1.40 | 1.10-1.40 | 0.030 | 0.030 | ||||
| 42CrMo | 0.38-0.45 | 0.17-0.37 | 0.50-0.80 | 0.025 | 0.025 | 0.90-1.20 | 0.15-0.25 |
Technical Specifications
| Processing Form | I.D (mm) | Length (m) | Straightness | I.D Tolerance | I.D Roughness |
|---|---|---|---|---|---|
| Cold-rolled | 30-100 | ≤ 12 | 0.3-1.0 | H8-H10 | 0.4-1.6 |
| Cold-drawn | 30-250 | ≤ 12 | 0.3-1.0 | 0.8-1.6 | |
| Hone | 40-500 | ≤ 12 | 1000 | H8-H9 | 0.4-0.8 |
| SRB | 40-400 | ≤ 7 | 1000 | H8-H9 | 0.1-0.4 |
Delivery Conditions
| Code | Treatment | Additional Codes |
|---|---|---|
| BK | Cold rolled | +C |
| BKW | Cold drawn | +LC |
| BKS | Stress relieved | +SR |
| GBK | Annealed | +A |
| NBK | Normalized | +N |
| Q+T | Quenched+Tempered |
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Changzhou Joyruns Steel Tube CO.,LTD
Location
No.143 Qingyang North road,Tianning district. Changzhou
Contact Person
Lee