H11 Tool Steel Chemical Composition & Properties, Grades, Chart and PDF Online
H11 tool steel is a material which is very versatile and has amazing hardness and heat tolerance which are a few of the good reasons why it is a preferable option for many industrial uses. Its chemical constitution usually consists of 0.32% to 0.42% of carbon, 4.75% to 5.5% of chromium, 0.3% to 1.6% of vanadium, 1.0% to 1.5% of molybdenum, silicon, manganese, sulfur and phosphorus in small amounts Together they provide the steel precise hardness, wear resistance, and thermal stability, making it the preferred material when there are very high stressors involved. Diagnostic category H11 is stated for hot-working tool steels of the AISI-SAE drawings, with, main element chromium as an alloying component. Its features are very impressive for 360-degree extreme re-usability, good machinability, and ability to absorb and deal with the opposite phenomenon of thermal fatigue and thermal shock. Engineers and manufacturers use H11 for forging dies, extrusion dies as well as other applications where elevated temperatures and abrosive conditions are main operating parameters. H11 tool steel chemical composition, properties, grades, details availble in table, chart and pdf form.
H11 Tool Steel Chemical Composition And Grade Table
H11 tool steel is an alloy with a number of positive properties: it is one of the hardest and the most tough materials of its class with a high melting point, so that it can be widely used in industry. Its chemical formula which is typically about 0.40–0.55% carbon, 4.75–5.50% chromium, 0.90–1.10% molybdenum, 1.30–1.60% vanadium and a small number of other elements such as silicon, manganese and sulfur will give the exact chemical composition This near perfect chemical composition resulting from the high chromium and molybdenum content imparts the notable wear resistance, high hot hardness, and temperature cycling tolerance traits to H11 steel. Therefore, as a material with exceptional resistance to heat and considerable durability, it is widely used in dies, punches, and forging tools in which those properties are very important.
| Elements | Carbon, C | Manganese, Mn | Silicon, Si | Sulfur, S | Phosphorus, P | Chromium, Cr | Molybdenum, Mo | Vanadium, V | Nickel, Ni | Copper, Cu | Iron, Fe |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Min (%) | 0.38 | 0.2 | 0.8 | – | – | 4.75 | 1.2 | 0.4 | – | – | – |
| Max (%) | 0.43 | 0.4 | 1 | 0.015 | 0.015 | 5.25 | 1.4 | 0.6 | 0.25 | 0.35 | *Balance |
Advantages and Disadvantages of H11 Tool Steel
Heat Treatable: Can be heat treated to achieve desired hardness and toughness.
Hot Workability: Ideal for applications requiring high heat resistance.
Wear Resistance: Provides good wear resistance in high temperature environments.
Toughness: Maintains strength and thermal fatigue resistance.
Advantages:
Machinability: Challenging to machine due to its high hardness.
Cost: Higher cost compared to other tool steels.
Decarburization: Resistant to heat but prone to surface decarburization during heat treatment.
Complex Heat Treatment: Requires rigorous heat treatment processes for optimal performance.
Disadvantages:
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