POM YUNTIANHUA M90
YUNTIANHUA® M90 – standard-flow acetal (POM) copolymer for precision injection parts (gears, fittings, valves, thin-wall components); UL 94 HB.
Key Benefits
Standard flow (MFR 9 g/10 min @ 190 °C / 2.16 kg) – fills tight, thin-wall moulds cleanly.
Balanced mechanics – tensile yield 60 MPa; flexural 88 MPa; modulus ~2.5–2.6 GPa for durable parts.
Dimensional stability – low warpage, low friction; good resistance to acids, bases, solvents, and wear.
Impact capable – Charpy notched 6 kJ/m² @ 23 °C limits cracking in service.
Processing-friendly – designed for injection moulding and extrusion.
Quick Specifications
| Property | Typical Value | ISO Method |
|---|---|---|
| Density | 1.41 g/cm³ | 1183 |
| Melt Mass-Flow Rate (190 °C / 2.16 kg) | 9 g/10 min | 1133 |
| Water Absorption (24 h, 23 °C) | 0.6 % | 62 |
| Tensile Stress at Yield | 60 MPa | 527-2 |
| Tensile Modulus | 2600 MPa | 527-2 |
| Strain at Break | 35 % | 527-2 |
| Flexural Strength | 88 MPa | 178 |
| Flexural Modulus | 2500 MPa | 178 |
| Charpy Notched Impact, 23 °C | 6 kJ/m² | 179/1eA |
| Heat-Deflection Temp. (1.8 MPa, unannealed) | 95 °C | 75 |
| UL 94 Flammability | HB (class) | UL 94 |
Applications & Certifications
Typical Applications of YUNTIANHUA® M90
• Gears and wheels • Fittings and valves • Automotive exterior/under-hood parts • Thin-walled electronic parts.
Certifications / Standards
• UL 94 HB. • RoHS test • PFOS test • FDA certification • UL certification • W18 test • EN71-3 test.
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