Understanding Scissor Steel Types: A Guide for Trade Partners
Selecting the right scissor is, in large part, a decision about steel. The grade of steel used in a blade determines its hardness, edge retention, maintenance requirements, and overall suitability for different working styles. As a trade partner, understanding these distinctions allows you to match products to the right customers and communicate value with confidence.
This guide covers the four steel types most commonly found in professional-grade scissors distributed through Scissor Lab’s network.
SUS440C Stainless Steel
Hardness: 56–58 HRC
SUS440C is the industry standard for professional scissors and the most widely used steel in the mid-range segment. It is a Japanese-grade martensitic stainless steel offering a reliable balance of hardness, corrosion resistance, and ease of manufacture.
Edge retention: Moderate. A well-maintained pair will hold its edge through regular daily use, though stylists working high volumes may find they need sharpening more frequently than with harder steels.
Maintenance: Straightforward. SUS440C responds well to standard sharpening techniques and is forgiving of minor misuse. Lubrication after each use is recommended.
Best suited to: Entry-level and mid-range scissors, students, stylists building their first kit, and salons seeking a cost-effective professional tool. Juntetsu Standard, Juntetsu Thinning, and Juntetsu Entry all use SUS440C.
VG10 Steel
Hardness: 60–62 HRC
VG10 is a premium Japanese stainless steel containing vanadium, cobalt, and molybdenum in addition to the base chromium and carbon composition. This combination produces a notably harder blade with superior edge retention. It is the steel of choice for mid-to-high-end professional scissors.
Edge retention: High. VG10 holds a fine convex edge for longer, making it well suited to busy stylists and those who cut across a wide range of hair types and textures.
Maintenance: Requires more careful handling than SUS440C. VG10 blades are more brittle and susceptible to micro-chipping if dropped or used on hair containing grit or product buildup. Sharpening should be performed by a technician familiar with harder steels.
Best suited to: Working professionals seeking improved performance and longevity. The Ichiro S-Series and Mina Pro range are both constructed in VG10. It is the most commonly specified steel in Scissor Lab’s mid-to-premium offerings.
Cobalt Alloy Steel (Hitachi ZA-18 Equivalent)
Hardness: 62–65 HRC
High-cobalt alloy steels, of which Hitachi’s ZA-18 is the best-known benchmark, represent the performance upper tier of scissor manufacturing. The elevated cobalt content increases hardness and wear resistance substantially beyond standard stainless grades.
Edge retention: Very high. These steels can hold a refined convex edge through extended professional use and are less prone to micro-dulling than VG10 under comparable conditions.
Maintenance: Demands skilled sharpening. The hardness that provides longevity also makes the steel less forgiving — incorrect sharpening angles can damage the edge irreversibly. A specialist sharpener with experience in high-hardness alloys is essential.
Best suited to: Senior stylists and salon owners who prioritise longevity and cutting feel above all else. Typically found in upper-tier and bespoke scissor ranges.
Damascus Steel
Hardness: Variable — typically 60–64 HRC depending on core composition
Damascus scissors are constructed by laminating multiple steel layers around a harder core, a technique with origins in traditional Japanese blade-making. The result is a blade that combines the toughness of outer layers with the edge-holding properties of the hardened core.
Edge retention: High, and largely determined by the core steel used. The layered construction also adds a degree of resilience — the softer outer layers absorb minor flex that might otherwise cause micro-fractures in a mono-steel blade.
Maintenance: Similar to VG10 or cobalt alloy depending on core material. The layered surface requires no special care, though the aesthetic patterning can wear over time if the blade is sharpened aggressively.
Best suited to: Stylists who value craftsmanship, longevity, and a distinctive aesthetic. Damascus scissors are often a considered purchase — they occupy the premium tier and carry strong visual appeal on the salon floor.
Comparative Summary
| Steel Type | HRC Range | Edge Retention | Maintenance Level | Price Tier |
|---|---|---|---|---|
| SUS440C | 56–58 | Moderate | Low | Entry–Mid |
| VG10 | 60–62 | High | Medium | Mid–Premium |
| Cobalt Alloy (ZA-18) | 62–65 | Very High | High | Premium |
| Damascus | 60–64 | High–Very High | Medium–High | Premium |
Choosing the Right Steel
For most salon professionals, VG10 represents the best balance of performance, durability, and value. It is the steel we specify most frequently across Scissor Lab’s brands, and the one we recommend as the starting point for mid-range and professional ranges.
SUS440C remains entirely appropriate for entry-level and student tools, and for salons where cost control is a primary consideration.
Cobalt alloy and Damascus are best presented to customers who are actively seeking a long-term investment — stylists who already understand what they want from a scissor and are prepared to maintain it properly.
If you have questions about steel specifications for any product in the Scissor Lab range, please contact your account manager or visit /distributors for partner support resources.