Jiangsu New Heyi Machinery Co., Ltd
| Payment Terms | L/C, T/T |
| Supply Ability | 30tons a day |
| Delivery Time | 30days |
| Packaging Details | Anti rust oil to be applied on material and each rod to be packed in paper sleeve |
| Product name | Mechanical Tube |
| Material | Steel |
| Straightness | Not more than 1.5mm / m |
| Length | 5m - 5.8m |
| OD tolerance | H8 |
| Delivery status | Stress Relieving Annealed |
| Brand Name | HY |
| Certification | ISO9001:2008 |
| Place of Origin | China |
View Detail Information
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Product Specification
| Payment Terms | L/C, T/T | Supply Ability | 30tons a day |
| Delivery Time | 30days | Packaging Details | Anti rust oil to be applied on material and each rod to be packed in paper sleeve |
| Product name | Mechanical Tube | Material | Steel |
| Straightness | Not more than 1.5mm / m | Length | 5m - 5.8m |
| OD tolerance | H8 | Delivery status | Stress Relieving Annealed |
| Brand Name | HY | Certification | ISO9001:2008 |
| Place of Origin | China | ||
| High Light | Hydraulic Cylinder Honed Tube ，honed Mechanical Tubing Corrosion Resistant | ||
Hydraulic Cylinder Honed Tube , Mechanical Tubing Corrosion Resistant
Detailed Product Description
Cold drawn seamless tubes for mechanical and automotive components have the precise tolerance
as per design purpose, especially for the small outside diameter and heavy wall tube which is beyond
the limit of the welded tube size range. By cold drawing, the mechanical properties get increased.
Specifications Comparison table
| Items | China | Steel Grade | European Uion | Steel Grade | American | Steel Grade | Germany | Steel Grade |
| Precision Seamless Tube | GB3639 | 10 20 35 45 30CrMo 42CrMo | EN 10305-1 | E 215 E235 E355 C35E C45E 30CrMo4 42CrMo4 | AST M A519 | 1010 1020 1026 1045 4130 4140 | DIN2391 BK BK S | ST 35 ST 37 ST 45 ST 52 |
Chemical&mechanical properties
| EN 10305/EN 10305-4 | DIN2391 | |||||||||||||
| Chemical composition %(max) | Steel Gr, | C | Si | Mn | P | S | Chemical composition %(max) | Steel Gr. | C | Si | Mn | P | S | |
| E215 | 0.10 | 0.35 | 0.70 | 0.025 | 0.025 | ST 35 | 0.10 | 0.35 | 0.40 | 0.025 | 0.025 | |||
| E235 | 0.17 | 0.35 | 1.20 | 0.025 | 0.025 | ST 37 | 0.17 | 0.35 | 1.20 | 0.025 | 0.025 | |||
| E355 | 0.22 | 0.55 | 1.60 | 0.025 | 0.025 | ST 52 | 0.22 | 0.55 | 1.60 | 0.025 | 0.025 | |||
| Delivery Condition | Delivery Condition | |||||||||||||
| +C | No heat treatment after the final cold drawing process | BK | Tubes do not undergo heat treatment following the final cold forming and, thus, have a rather high resistance to deformation | |||||||||||
| +LC | After the final heat treatment there’s a suitable drawing pass | BKW | The final heat treatment is followed by cold drawing involving limited deformation. Appropriate further processing allows a certain degree of cold forming (e.g. Bending, expanding) | |||||||||||
| +SR | After the final cold drawing process there’s a stress relief heat treatment in controlled atmosphere | BKS | Heat treatment is applied following the last cold forming process. Subject to appropriate processing conditions, the increase in the residual stresses involved enables both forming and machining to a certain degree | |||||||||||
| +A | After the cold drawing process the tubes are annealed in a controlled atmosphere | GBK | The last cold forming process is followed by a nnealing in a controlled atmosphere | |||||||||||
| +N | After the final cold drawing operation the tubes are normalized in a controlled atmosphere | NBK | The last cold forming process is followed by annealing above the upper transformation point in a controlled atmosphere | |||||||||||
| Mechanical Properties | Mechanical Properties | |||||||||||||
|
| Steel Gr. | +C | +LC | +SR | +A | +N |
| Steel Gr. | BK | BKW | BKS | GBK | NBK | |
| Tensile Strength (Rm)(MPa) Min | E215 | 430 | 380 | 380 | 280 | 290-430 | Tensile Strength (Rm)(MPa) Min | ST 30AL | 430 | 380 | 380 | 280 | 290-430 | |
| E235 | 480 | 420 | 420 | 315 | 340-480 | ST 37 | 440 | 370 | 380 | 315 | 340-470 | |||
| E355 | 640 | 580 | 580 | 450 | 490-630 | ST 52 | 640 | 580 | 580 | 450 | 490-630 | |||
| Yield Strength (ReH)(MPa) Min | E215 | ≥0.8Rm | ≥0.7Rm | 280 | ≥0.5Rm | 215 | Yield Strength (ReH)(MPa) Min | ST 30AL | ≥0.8 Rm | ≥0.7 Rm | 280 | ≥0.5 Rm | 215 | |
| E235 | ≥0.8Rm | ≥0.7Rm | 280 | ≥0.5Rm | 235 | ST 37 | ≥0.8 Rm | ≥0.7 Rm | 280 | ≥0.5 Rm | 235 | |||
| E355 | ≥0.8Rm | ≥0.7Rm | 450 | ≥0.5Rm | 355 | ST 52 | ≥0.8 Rm | ≥0.7 Rm | 420 | ≥0.5 Rm | 355 | |||
| Elongation % | E215 | 8 | 12 | 16 | 30 | 30 | Elongation % | ST 30AL | 6 | 10 | 16 | 25 | 25 | |
| E235 | 6 | 10 | 16 | 25 | 25 | ST 37 | 6 | 10 | 16 | 25 | 25 | |||
| E355 | 4 | 7 | 10 | 22 | 22 | ST 52 | 4 | 7 | 10 | 22 | 22 | |||
| a. ST 30Al with Aluminium composition min 0.025% | ||||||||||||||
| OD TOLERANCE | ||||||||||||||
| OVER | UP TO AND INCLUDING | TOLERANCE | ||||||||||||
| MM | MM | MM+/- | ||||||||||||
|
| 30 | 0.10 | ||||||||||||
| 50 | 70 | 0.15 | ||||||||||||
| WALL TOLERANCE | ||||||||||||||
| The tolerance including ecentricity, shall be +/- 10% with a minimum of +/- 0.10mm | ||||||||||||||
| STRAIGHTNESS | ||||||||||||||
| Tubes shall not depart from straightness by more than 1.5 mm/m | ||||||||||||||
Company Details
Business Type:
Manufacturer
Year Established:
1999
Total Annual:
10 Million-11 Million
Employee Number:
200~300
Ecer Certification：
Verified Supplier
Jiangsu New Heyi Machinery Co., Ltd is specialized in producing precision long small diameter axes and hydraulic piston rod. The products are widely used in mine machinery industry, textile and&... Jiangsu New Heyi Machinery Co., Ltd is specialized in producing precision long small diameter axes and hydraulic piston rod. The products are widely used in mine machinery industry, textile and&...
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