GB/T 36166-2018 in English
VALIDCopper alloy rods and profiles for hydraulic components
- Issued on:2018-05-14
- Implemented on:2018-12-01
- File Format:PDF
- Delivery:Via email within 5 business days
$301.00
| Standard No: | GB/T 36166-2018 |
| Document status: | VALID |
| Title in English: | Copper alloy rods and profiles for hydraulic components |
| Title in Chinese: | 液压元件用铜合金棒、型材 |
| Language: | English |
| File Format: | Electronic (PDF) |
| Delivery: | Via email within 5 business days |
| Issued on: | 2018-05-14 |
| Implemented on: | 2018-12-01 |
| ICS Classification: | 77.150.30-Copper products |
| Chinese Classification: | H62-Heavy metals and their alloys |
| Professional Classification: | GB-National Standard |
| Related Keywords: | material classification system alloy
copper alloy rods copper alloy materials alloy phase alloy grades |
| Related Topics: | Copper Alloy Standard
Copper Alloy Standard Copper Alloy Rod Copper alloy profile Copper alloy profile Profile standard GBT36166 GB/T 36166-2018 copper alloy Copper alloy rod material Copper rod profile Copper rod copper rod profile Copper alloy rod profiles Europe |
《GB/T 36166-2018液压元件用铜合金棒、型材》由TC243（全国有色金属标准化技术委员会）归口，TC243SC2（全国有色金属标准化技术委员会重金属分会）执行，主管部门为中国有色金属工业协会。
Introduction
Analysis of the core content of the standard
This standard specifies the technical requirements for 12 alloy grades such as ZQSn and HMn for copper alloy materials used in key components such as cylinder blocks and shoes in hydraulic systems. The focus is on controlling the fluctuation range of chemical composition, microstructure morphology and mechanical property gradient.
Material classification system
| Alloy series | Typical grades | Status code | Main application scenarios |
|---|---|---|---|
| Tin bronze | ZQSn7-7-3 | M07 | Bushing, Slider |
| Manganese brass | HMn58-2-2-0.5 | M30/HR50 | Oil distribution plate, Main board |
| Aluminum Bronze | QA110-3-1.5 | HR50 | High Load Ball Joint Components |
Key Technical Indicators Comparison
Mechanical Properties Requirements
| Grade | Tensile Strength (MPa) | Elongation (%) | Hardness (HBW) |
|---|---|---|---|
| ZQSn10-10 | ≥245 | 9 | 65 |
Dimension Tolerance System
| Product Type | Key Dimensions | Allowance Deviation |
|---|---|---|
| Main Board Profile | Inner Circle R1(20-40mm) | +1.0/0mm |
| Side plate profile | Height H(70-220mm) | +2.0/0mm |
| Rod (HR50) | Diameter 6-10mm | +0.08/0mm |
Key points of microstructure control
The standard clarifies the distribution requirements of each alloy phase through metallographic maps:
- Tin bronze system: α dendrites and (α+δ) eutectoids are required to be evenly distributed, and Pb phase is dispersed and precipitated
- Manganese brass system: The proportion of α phase needle precipitation on β matrix is controlled at 15-25%
- Aluminum bronze system: The size of the strengthening phase in the β+α dual-phase structure is ≤5μm
Implementation and application suggestions
Material selection decision tree
- Low pressure working conditions: ZQSn system is preferred, with obvious cost advantages
- Medium and high pressure working conditions: HMn57-2 series is recommended, taking into account both strength and wear resistance
- Corrosive environment: Nickel-containing alloys such as HA161-4-3-1 must be used
Key points of quality control
- The chemical composition needs to pay special attention to the segregation of main elements such as Sn and Mn
- Residual stress should be tested for HR50 state materials
- 100% penetration testing is required for the arc transition zone of the profile
Analysis of Standard Evolution
Main improvements compared with the old version of the standard:
| Improvement direction | Innovation of the 2018 version |
|---|---|
| Alloy system | Three new high-strength grades including HMn62-3-3-1 |
| Dimension control | Refine the tolerance band of profile section and add two-way deviation option |
| Detection method | Introduce X-ray fluorescence spectroscopy as an arbitration method |
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