440C vs SUS420J2: Which Budget Scissor Steel?
What's the difference between 440C and SUS420J2 scissor steel?
440C (58–60 HRC) holds an edge roughly twice as long as SUS420J2 (52–54 HRC), so SUS420J2 belongs in student kits and backup shears while 440C is the more dependable choice for everyday professional cutting on a budget.
Both are corrosion-resistant stainless steels, which is why they show up in affordable and training shears. SUS420J2 is the softer of the two at around 52–54 HRC and roughly 300–500 cuts before it needs service — fine for mannequin work, foils, and retail tasks, but it dulls quickly on dense hair. 440C sits higher at 58–60 HRC and about 700–1,000 cuts, the practical baseline for a working professional pair that won’t break the bank.
Verified Jun 2026
| Attribute | 440C Stainless Steel Japan / Germany / USA | SUS420J2 Stainless Steel Japan / Global |
|---|---|---|
| Overall tier | Tier B | Tier D |
| Hardness | 58–60 HRC | 52–54 HRC |
| Edge retention | 700–1,000 cuts before sharpening | 300–500 cuts before sharpening |
| Corrosion resistance | Medium-high | High |
| Steel family | Martensitic stainless | Martensitic stainless |
| Best for | High-traffic salons that need predictable performance | Student kits and chemical-station backups |
| Product links | Full entry | Full entry |
When each one makes sense
Buying a first set of shears for school or a chemical-station backup? SUS420J2 keeps the cost down and shrugs off bleach and water. Cutting clients with it day in, day out will frustrate you — the edge fades too fast. 440C is the step that turns “trainer” into “working tool”: longer edge life, still easy to sharpen, still affordable. Spend the small difference once you’re cutting for pay.