Changzhou Joyruns Steel Tube CO.,LTD
| Payment Terms | L/C, T/T |
| Supply Ability | 2000Tons/Month |
| Delivery Time | 30days |
| Packaging Details | plastic packing, end caps, wooden box packing |
| OD size | 6mm to 114.3mm |
| Thickness | 1mm to 20mm |
| Standard | DIN2391, EN10305, EN10216, EN10210 |
| Material | Q345B,Q345D,Q345E |
| Type | Seamless cold drawning precision tube |
| Brand Name | Joyruns |
| Model Number | DIN2391h8 Honed Tube |
| Certification | ISO9001 |
| Place of Origin | Changzhou |
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Product Specification
| Payment Terms | L/C, T/T | Supply Ability | 2000Tons/Month |
| Delivery Time | 30days | Packaging Details | plastic packing, end caps, wooden box packing |
| OD size | 6mm to 114.3mm | Thickness | 1mm to 20mm |
| Standard | DIN2391, EN10305, EN10216, EN10210 | Material | Q345B,Q345D,Q345E |
| Type | Seamless cold drawning precision tube | Brand Name | Joyruns |
| Model Number | DIN2391h8 Honed Tube | Certification | ISO9001 |
| Place of Origin | Changzhou | ||
| High Light | Cold Drawing Normalizing Honed Cylinder Tube ，H8 Honed Cylinder Tube ，Q345D Honed Tube | ||
Q345D DIN2391 H8 Honed Tube Cold Drawing Normalizing Treatment Tube and Piston Cylinder Tube
Honed tubes can be produced according to the demands of customers that the degree of precision can reach H8/H9. Burnishing and honing services can be provided depending on the roughness requirement of inner diameter.
Backed ourselves with talented personnel, we have emerged as one of the leading firms indulged in offering superior quality piston rods. The vital parameters of piston rods such as the diameter tolerance, straightness, surface hardness, chrome layer thickness, as well as surface roughness all meet the industry standards
Material & Chemical Composition
DIN2391 standard ST52, EN10305 standard E355, 16Mn, ASTM A106B, C20/20#, CK45
| 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 |
Product description
| Processing Form | I. D | Length | Straightness | I. D Tolerance | I. D Roughness |
| Cold-rolled | 30-100 | ≤ 12M | 0.3-1.0 | H8-H10 | 0.4-1.6 |
| Cold-drawn | 30-250 | ≤ 12M | 0.3-1.0 | 0.8-1.6 | |
| Hone | 40-500 | ≤ 12M | 1000 | H8-H9 | 0.4-0.8 |
| SRB | 40-400 | ≤ 7M | 1000 | H8-H9 | 0.1-0.4 |
Delivery Condition:
| BK | BKW | BKS | GBK | NBK | Q+T |
| +C | +LC | +SR | +A | +N | |
| Cold rolled | Cold drawn | Stress relieved | Annealed | Normalized | Quenched+Tempered |
Company Details
Business Type:
Manufacturer,Agent,Exporter,Seller
Year Established:
2000
Total Annual:
10000000-20000000
Employee Number:
150~300
Ecer Certification：
Verified Supplier
Changzhou Joyruns Steel Tube Co., Ltd specializes in the export of steel pipes for 20 years. We have been a leading supplier of high-quality steel pipes of carbon, alloy, nickel material & copper, which is one of the most professional Bundy and stainless steel pipe manufactur... Changzhou Joyruns Steel Tube Co., Ltd specializes in the export of steel pipes for 20 years. We have been a leading supplier of high-quality steel pipes of carbon, alloy, nickel material & copper, which is one of the most professional Bundy and stainless steel pipe manufactur...
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