| Description: | |
| Casting Material: | Austempered Ductile Iron, ADI 900 / QTD 900-8 / JS 900-8 / EN-GJS 900-8 / FCAD 900-8 / ASTM A 897/M-16 900-9 |
| Design Software: | CAD, PRO/E, SolidWorks, UG |
| Casting Process: | Sand Coated Casting, Lost Foam Casting, Investment Casting |
| Heat Treatment: | Austempering |
| Machining: | Casting+CNC Machining |
| Surface finishing: | Shot blasting, Galvanized/Hot dip galvanized, Powder coated, Spray painting |
| Package: | Fumigation-free pallet or Wooden Box |
Agricultural machinery parts are the high-wear metal components that till, plant, fertilize and harvest your soil—tines, plow points, seed-metering discs, cultivator shanks, mower knives and more. They decide how long your machine stays in the field before the next service stop.
Plow point tip – abrasive soil erodes 2–3 mm per 100 ha.
Cultivator tine heel – impact + bending causes fatigue crack.
Seed disc edge – micro-chipping from sandy loam.
Bolt hole collar – fretting wear loosens the fit and breaks bolts.
| Property | Value / Requirement | Unit | Remarks |
|---|---|---|---|
| Tensile strength Rm | ≥ 900 | MPa | Mill test 900-980 |
| Yield strength Rp0.2 | ≥ 650 | MPa | +50 MPa vs 2020 edition |
| Elongation after fracture A | ≥ 7 | % | Min. for grade ADI 900-7 |
| Brinell hardness HBW | 270-340 | - | Guidance, wall ≤30 mm |
| Impact energy KV (un-notched, room temp.) | ≥ 90 | J | Mill test 90-110 |
| Rotating-bending fatigue limit σw | 450-550 | MPa | ~25 % above ADI 800 |
| Contact fatigue limit σH | 1800-2200 | MPa | Comparable to case-hardened steel |
| Modulus of elasticity E | ≈ 169 | GPa | Same as ADI 800 |
| Density ρ | 7.1 | g·cm⁻³ | ~10 % lighter than steel |
| Graphite nodularity | ≥ 85 | % | GB/T 24733-2023 requirement |
| Graphite count | ≥ 100 | pcs/mm² | Same as above |
| Matrix structure | Ausferrite + trace carbides | - | Other phases <5 % |
Building 1,No. 8B Hong Kong Middle Road, Qingdao, China.
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