Buyers asking for aus8 aus10 knife steel usually want one thing: a stainless blade that sharpens without drama, holds up in daily use, and still lands inside the FOB price target. Fair request. But “which steel is better?” is the wrong question to ask. We’ve seen this go sideways on real orders: sample hardness read 56 HRC instead of the agreed 59 HRC on the Rockwell tester, the edge rolled after 7 days of carton-opening tests, and QC pulled the sample after orange spots showed up from one wet container cycle.
AUS-8 and AUS-10 are Japanese stainless knife steel grades used in pocket knives and some kitchen formats. Middle shelf steel. No magic. In Yangjiang, Zhejiang, and across China knife supply chains, we run these grades often because the spec can stay under control when the PO is written tightly: target HRC, blade thickness in mm, finish standard, and AQL 2.5 at final inspection. One buyer once wrote “satin” on the PO but approved a brushed sample photo; the grinding line followed the PO, and the claim came later. That math does not work. Source these steels with clear specs and you can ship stable QC at a price that still makes sense.
Sample approval and RFQ details
Your RFQ should make the factory write the working spec, not hide behind a product photo and “best price.” List blade steel, target hardness, handle material, surface finish, packing, inspection level, and incoterm. If you are comparing AUS-8 and AUS-10, ask for both prices on the same blade length, 2.5 mm stock, same grind, same logo process, and same box spec. Then the steel cost shows. If you skip that, the math gets buried in 2.3 mm stock, a faster belt on the grinding line, or a thinner color box. We have seen a buyer flag a USD 0.18 gap after sample approval, then QC found the AUS-10 quote used a lighter carton, 5-ply vs 7-ply.
For a clean quote, write the blade length in mm, stock thickness, hardness band, finish, logo method, blister or carton style, and whether you need FOB, DDP, or another term. Put the compliance asks in the RFQ before sampling if your market is Europe or North America: FDA, LFGB, barcode format, warning text, carton drop test, and the retailer’s own checklist. We run into this often. QC pulled one sample last month where the PO said satin finish but the artwork sheet said mirror finish; that typo cost 6 days because the supplier had already booked the polishing wheel. A good factory in Yangjiang or Zhejiang will answer with steel grade, HRC target, MOQ, sample lead time, and packing details. A weak one sends only a price. That is not a shortcut; it is the wrong quote.
Before mass production, approve a signed sample with the exact steel grade and hardness written on the packing spec. Make it plain: AUS-8 at 58-60 HRC, or AUS-10 at the agreed band, not just “stainless steel.” Small discipline. It saves arguments. We have seen this go sideways at final inspection, with 20 cartons opened and the buyer asking why the edge retention does not match the approved sample.
Frequently asked questions
Yes. Both can work well in kitchen knives if the heat treatment and finishing are controlled. AUS-8 is usually the easier choice for general household use because it sharpens quickly and handles abuse better at around 57-59 HRC. AUS-10 is better if you want longer edge life and can keep the blade geometry and hardness stable around 59-61 HRC. For food-contact programs, also confirm packaging cleanliness, corrosion protection, and any LFGB or FDA requirements for handles or coatings.
Ask for the exact grade on the material declaration, not just the sales sheet. A serious supplier should show mill paperwork, heat treatment records, and hardness test results that match the agreed band. For higher-volume orders, request lot tracing and retain one signed sample. If the factory is in Yangjiang, China, a credible OEM partner will usually give a clear answer on steel source, HRC target, and production records without changing the story between sample and bulk order.
Neither grade is rust-proof, but both are stainless and suitable with proper care. AUS-8 can be slightly more forgiving if the finish and packaging are basic, while AUS-10 offers more performance if the surface is polished and protected. In humid shipping or coastal retail, the bigger issue is packaging discipline: oiling, VCI bags, desiccant, and carton moisture control. If those are weak, the steel grade alone will not save you.
For many OEM programs in China, a realistic MOQ is 1,000 pcs per model or per colorway, sometimes higher if the handle tooling is complex. Lead time after sample approval is often 30-45 days, depending on grinding, heat treatment, and packaging. If a supplier offers a very low MOQ with a very low price, check whether they are truly using AUS-8 or AUS-10 and whether they can hold consistent hardness across the batch.
That is usually the cleanest commercial structure. AUS-8 works well for value lines, promotional knives, and everyday kitchen models where easy sharpening and lower cost matter. AUS-10 is a better fit for premium positioning because you can justify better edge retention and a more upscale spec. In a China sourcing program, this tiered approach helps you separate price points without redesigning the entire product line.
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Send your target blade size, HRC, MOQ, and finish. We can price AUS-8 and AUS-10 for pocket or kitchen knives from China with clear QC terms.
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