Steel Classification, Grades & Applicable Tools
2026-03-19 21:03:09
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| Level 1 | Level 2 | Level 3 | Level 4 | Representative Grade/Composition | Applicable Tools |
| Steel | Carbon Steel | Low Carbon Steel | A3 (Q235), C ≤ 0.25% | Simple hardware, ordinary stamping parts | |
| Medium Carbon Steel | 45#, 50#, 0.25% < C ≤ 0.60% | Ordinary wrenches, pliers, hammers | |||
| High Carbon Steel | T10, T12, C > 0.60% | Base material for low-grade pliers & wrenches | |||
| Alloy Steel | Low Alloy Steel | Cr-V (Chrome Vanadium), Cr-Mo (Chrome Molybdenum) | Auto repair tools: Sockets, ratchets, wrenches | ||
| Medium Alloy Steel | 40Cr, Alloy content 5%-10% | Industrial structural parts (rarely used for tools) | |||
| High Alloy Steel | Stainless Steel | SUS304, SUS316, Cr ≥ 10.5% | Anti-corrosion auto tools, outdoor hardware | ||
| Heat-Resistant Steel | 1Cr18Ni9Ti, High Cr/Ni content | High-temperature tool parts | |||
| Wear-Resistant Steel | Mn13, High Manganese content | Wear-resistant tools, machinery parts | |||
| Special Steel | Tool Steel | Carbon Tool Steel / Alloy Tool Steel | T10 (Carbon), 9SiCr, CrWMn (Alloy) | Taps & dies (general type) | |
| High Speed Steel (HSS / HSS-Co) | HSS M2 (W6Mo5Cr4V2), HSS-Co M35 | Taps & dies (high-end / machine type) | |||
| Carbide (Tungsten Steel / 钨钢) | WC-Co (YG8, YG15, K10/K20), Powder Metallurgy | High-precision taps & dies, carbide cutting tools, wear-resistant parts | |||
| Mold Steel / Die Steel | Cr12MoV, H13 | Molds, hardware mold parts | |||
| Spring Steel | 65Mn, 55Si2Mn | Circlips, hex keys, elastic tools | |||
| Bearing Steel | GCr15, High Carbon-Chromium | Precision tools, wear-resistant parts |