6542 high-speed steel

Scope of supply of Aviation Group:

Round rods, steel plates, non-standard forgings, rings, etc., welcome to inquire!

1. Introduction to 6542 Materials

6542 is a high-speed steel grade, and is a representative steel number of one of the general-purpose high-speed steels in the tungsten and molybdenum system. Its toughness and wear resistance are better than W18Cr4V, and its hardness, red hardness and high-temperature hardness are comparable.

2. 6542 Chemical Ingredients

Carbon C: 0.80～0.90 (Allowable deviation: ±0.01)

Silicon Si: 0.20～0.45 (permissible deviation: ±0.05) Manganese Mn: 0.15～0.40 (permissible deviation: +0.04) Sulfur S: ≤0.030

Phosphorus P: ≤0.030

Chromium Cr: 3.80～4.40 (Allowable deviation: ±0.05)

Nickel Ni: Allowable residual content ≤0.30

Copper Cu: Allowable residual content ≤0.25

Vanadium V: 1.75～2.20 (Allowable deviation: ±0.05)

Molybdenum Mo: 4.50～5.50 (Allowable deviation: size ≤6, ±0.05; size >6, ±0.10)

Tungsten W: 5.50～6.75 (Allowable deviation: size ≤10, ±0.10; size >10, ±0.20)

Note: According to the agreement between the supply and demand parties, the content of V can be 1.60 to 2.20

3. 6542 Physical properties

Hardness: Delivery hardness: (other processing methods) ≤262HB; (annealing) ≤255HB.

The heat treatment system of the sample and the quenching hardness: ≥63HRC (box furnace), ≥64HRC (salt bath furnace) Heat treatment specifications: quenching, preheating at 730-840℃, 1210-1230℃ (salt bath furnace) or 1210-1230℃ (box furnace), oil-cooled, 540-560℃ tempered twice, each time for 2 hours.

4. 6542 application fields

It can be used to manufacture various tools with high impact force, general tool-large and thermoplastic tools, as well as wear parts under high loads, cold work molds, etc.