Guangming Group shares today the main‑material systems for powder metallurgy.

Main Material Systems of Powder Metallurgy

1. Iron‑based Powder Metallurgy (the highest‑output and mainstream option in the industry)

Matrix materials: pure iron, iron‑carbon, iron‑copper‑carbon, and iron‑nickel‑molybdenum alloy powder

Features: cost‑effective with adjustable strength; density can be improved via repressing and resintering

Applications: automotive gears, sprockets, oil pump rotors, shock‑absorbing components, power‑tool gears and structural bases

2. Copper‑based Powder Metallurgy

Matrix materials: copper‑tin (bronze), copper‑lead and copper‑iron alloys

Features: porous structure, self‑lubricating property, excellent wear resistance, electrical and thermal conductivity

Applications: oil‑impregnated bearings, bearing sleeves, electrical contacts and anti‑friction gaskets

3. Stainless‑Steel Powder Metallurgy

Matrix materials: 304, 316L, 410, 420 and 430 stainless‑steel powder

Features: good corrosion and rust resistance; compactness is limited by die pressing, while MIM delivers higher density

Applications: fluid valve fittings, medical‑device components, sanitary‑ware and food‑equipment parts

4. Cemented Carbide (Tungsten‑based)

Matrix materials: WC‑Co (tungsten‑cobalt) and WC‑TiC‑Co composites

Features: ultra‑high hardness, outstanding wear resistance and poor machinability

Applications: cutting tools, drill bits, moulds, wear‑resistant punches and mining wear‑resistant parts

5. Soft Magnetic Composites (SMC, iron powder with insulating coating)

Matrix: compacted and sintered iron powder with surface insulation treatment

Features: low core loss under high‑frequency conditions, three‑dimensional magnetic circuits, capable of replacing silicon steel sheets

Applications: new‑energy motor cores, servo‑motor iron cores and inductor magnetic cores

6. Aluminium‑based Powder Metallurgy

Matrix materials: aluminium‑silicon and aluminium‑coated‑series alloy powder

Features: lightweight and low specific gravity

Applications: light‑weight structural components and heat‑dissipation parts; its output is lower than iron‑based and copper‑based materials

7. Titanium‑based Powder Metallurgy

Matrix: titanium and titanium‑alloy powder

Features: light weight, high strength and corrosion resistance; raw‑material powder comes at a high cost

Applications: aerospace components and medical implants, mostly processed by MIM or hot isostatic pressing

8. Other Special Material Systems

 Refractory metals: tungsten and molybdenum for high‑temperature components

 Metal‑ceramic composites: metal matrix mixed with ceramic particles for superior wear resistance

 Special‑purpose MIM alloys: low‑alloy steel and superalloys for tiny, intricate and precision‑made parts

Keywords: powder metallurgy, metal injection moulding (MIM), powder‑metallurgy gears

Guangming Group

Guangming Group specializes in the research, development and manufacture of metal‑forming technologies and wear‑resistant materials. Its main‑line products cover powder‑metallurgy workpieces produced by metal compaction moulding and injection moulding.

The company boasts a high‑calibre talent team. Its founding team comes from Guangzhou Research Institute of Non‑Ferrous Metals, a research institute directly affiliated with a former national ministry‑level authority. The team possesses rich industry experience and strong R‑D capacity, delivering sustained innovative momentum for enterprise growth.

The firm has obtained 5 invention patents and over 30 utility‑model patents. It has acquired certifications for the IATF16949 Quality‑Management System, ISO9001‑2015 Quality‑Management System, ISO14001 Environmental‑Management System and Intellectual‑Property‑Management System, alongside an international trademark registration.

It is recognised as an Innovative Enterprise of Guangdong Province, a Guangzhou Little‑Giant Tech Enterprise, a director‑unit member of the Guangdong Powder‑Metallurgy Industrial‑Technology Innovation Alliance, and a sponsor organisation of the Guangzhou Advanced Powder‑Metallurgy Cluster Promotion Centre.