6CrW2Si Blades — Huiheng Blades | Material & Selection Guide

What it is

6CrW2Si is one of the seven grades we keep in stock and machine every week. Hardness HRC 54–58, wear resistance Medium, toughness Very high. Best suited to chipper knives, scrap, impact-heavy cutting.

Hardness	HRC 54–58
Wear resistance	Medium
Toughness	Very high
Best for	Chipper knives, scrap, impact-heavy cutting
Our note	Chosen when chipping is the failure mode, not wear.

Where it wins and where it loses

Choose it when

Your blades fail by wearing out, not by chipping
You need HRC 54–58 and want it written on the quote
The application fits chipper knives, scrap, impact-heavy cutting

Look elsewhere when

The blade is chipping or cracking — go tougher, not harder
You need corrosion resistance — use 440C stainless
Line speed is very high — HSS or carbide holds hardness better

How we work it

6CrW2Si is vacuum hardened and tempered in-house, then ground on CNC and surface grinders. Hardness is checked on every piece before it is packed. If your drawing calls for a different hardness window, we will tell you whether it is achievable and what it costs in toughness.

Materials used for this blade

Woodworking Knives

Chipper, flaker, veneer and planer knives for furniture and panel production

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Shredder & Crusher Blades

Shredder, crusher and granulator blades for tyres, plastics, wood and scrap

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Custom Blades

Send your drawing or a used sample — quoted from the workshop

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Frequently asked questions

Chipper knives, scrap, impact-heavy cutting. Hardness HRC 54–58, wear resistance Medium, toughness Very high.

Chosen when chipping is the failure mode, not wear. Tell us the material you cut, your line speed and how the current blade fails, and we will say plainly whether this grade is right or wrong for you.

Yes — we machine all seven grades in-house. Send a drawing or a used sample and we will quote it with the heat treatment that fits.