摘要:
An austenitic heat resistant alloy, which comprises by mass percent, C: over 0.02 to 0.15%, Si ‰¤ 2%, Mn ‰¤ 3%, P‰¤ 0.03%, S ‰¤ 0.01%, Cr: 28 to 38%, Ni: over 40 to 60%, Co ‰¤ 20% (including 0%), W over 3 to 15%, Ti: 0.05 to 1.0%, Zr: 0.005 to 0.2%, Al: 0.01 to 0.3%, N ‰¤ 0.02%, and Mo
摘要:
Provided are: a technique with which air blast cooling can be used to produce, with excellent productivity, a high-strength steel wire material capable of achieving uniform high strength and high ductility, even when cold drawn; a high-strength steel wire produced from this high-strength steel wire material; and a zinc-plated high-strength steel wire. This high-strength steel wire material respectively includes 0.80-1.3% of C, 0.1-1.5% of Si, 0.1-1.5% of Mn, more than 0% but not more than 0.03% of P, more than 0% but not more than 0.03% of S, 0.0005-0.01% of B, 0.01-0.10% of Al, and 0.001-0.006% of N, the remainder comprising iron and unavoidable impurities. The area ratio of pearlite in the structure of the high-strength steel wire material is at least 90%. The average grain size number (Pave) of pearlite nodules and the standard deviation (PÃ) thereof respectively satisfy formula (1), namely 7.0 ‰¤ P ave ‰¤ 10.0, and formula (2), namely Pà ‰¤ 0.6.
摘要:
There is provided a heat resistant ferritic steel including a base material including, by mass percent, C: 0.01 to 0.3%, Si: 0.01 to 2%, Mn: 0.01 to 2%, P: at most 0.10%, S: at most 0.03%, Cr: 7.5 to 14.0%, sol.Al: at most 0.3%, and N: 0.005 to 0.15%, the balance being Fe and impurities, and an oxide film that is formed on the base material and contains 25 to 97% of Fe and 3 to 75% of Cr. This heat resistant ferritic steel is excellent in photoselective absorptivity and oxidation resistance.
摘要:
To provide a ferritic stainless steel sheet which has high scale spalling even at a high temperature around 1000°C. Provided is a ferritic stainless steel sheet having excellent Mn-containing oxide film-forming ability and scale spalling ability, containing, in terms of mass%: C: 0.001 to 0.020%, N: 0.001 to 0.020%, Si: 0.10 to 0.40%, Mn: 0.20 to 1.00%, Cr: 16.0 to 20.0%, Nb: 0.30 to 0.80%, Mo: 1.80 to 2.40%, W: 0.05 to 1.40%, Cu: 1.00 to 2.50%, and B: 0.0003 to 0.0030%, in which the above-mentioned components are contained satisfying the formula (1) below, and the balance is composed of Fe and inevitable impurities. At least one of N, Al, V, Mg, Sn, Co, Zr, Hf, and Ta may be added in a predetermined content range.
摘要:
There is provided a heat resistant ferritic steel including a base material including, by mass percent, C: 0.01 to 0.3%, Si: 0.01 to 2%, Mn: 0.01 to 2%, P: at most 0.10%, S: at most 0.03%, Cr: 7.5 to 14.0%, sol.Al: at most 0.3%, and N: 0.005 to 0.15%, the balance being Fe and impurities, and an oxide film that is formed on the base material and contains 25 to 97% of Fe and 3 to 75% of Cr. This heat resistant ferritic steel is excellent in photoselective absorptivity and oxidation resistance.
摘要:
A bearing component formed from a steel composition comprising carbon, silicon, manganese, chromium, cobalt, vanadium, optionally one or more of the following elements from sulphur, phosphorous, molybdenum, aluminium, arsenic, tin, antimony, and the balance iron, together with unavoidable impurities.
摘要:
A novel ferritic martensitic alloy enables the use temperature to be increased from 500°C to 550°C, where the strength is maintained or is even maximized and the toughness, especially for low temperatures, is maintained compared to the known iron-based alloys.