Abstract: Provided are chromium steel having excellent high-temperature oxidation resistance and high-temperature strength, and a method of manufacturing same. The present invention relates to chromium steel, having excellent high-temperature oxidation resistance and high-temperature strength, which comprises, by weight %, 0.1% or less of C (not including 0%), 0.7% or less of Si (not including 0%), 0.1% or less of Mn (not including 0%), 0.01% or less of S (not including 0%), 0.03% or less of P (not including 0%), 27-33% of Cr, 3.5% or less of Al (not including 0%), 2.5% or less of Nb (not including 0%), 6.5% or less of W (not including 0%), 0.5% or less of Mo (not including 0%), 0.3% or less of Ti (not including 0%), 0.015% or less of N (not including 0%) and the remainder being Fe and unavoidable impurities, and satisfies relational expression (1).

Abstract: The objective of the present invention is to provide a steel material having improved hydrogen embrittlement resistance and high impact toughness despite a low-cost alloy system compared to conventional steel, which can be advantageously applicable in the field using hydrogen which is gradually increasing, and a method for manufacturing same.

Abstract: An electrified vehicle is capable of a V2V power trading through a transaction and a method of a V2V power trading management control for the same. The method of the electrified V2V power trading according to an embodiment of the present disclosure may include: transmitting a power trading offer to a server based on a tradable power of a first vehicle; posting a power for sale on the server according to the power trading offer; and confirming a V2V charging contract to a second vehicle regarding the posted power for sale.

Abstract: Disclosed are an alloy steel including boron (B) to provide improved hardenability, cobalt (Co) to provide improve strength, and the method of preparing the alloy steel. In particular, components of the alloy steel composition are appropriately mixed to form 100 vol % of tempered martensite as a constituent structure, thereby exhibiting excellent hydrogen embrittlement resistance and strength.

Abstract: A method and apparatus for an EV that receives power from an EVSE, includes receiving, by the EV, identifiable information broadcast from a plurality of EVSEs associated with at least one SECC; selecting, by the EV, one of the plurality of EVSEs as a first EVSE; performing, by the EV, wireless communication association with the first EVSE; performing, by at least one of the EV and the first EVSE, positioning until the EV is at a location capable of being charged from the first EVSE; and performing, by at least one of the EV and the first EVSE, pairing with the first EVSE so that the EV receives power from the first EVSE.

Abstract: Provided are a chromium steel sheet having excellent creep strength and high-temperature ductility, and a method for manufacturing same. The present invention relates to a chromium steel sheet having excellent creep strength and high-temperature ductility comprising, in percentage by weight: C: 0.04 to 0.15%; Si: 0.5% or less (excluding 0%); Mn: 0.1 to 0.6%; S: 0.01% or less (excluding 0%); P: 0.03% or less (excluding 0%); Cr: 1.9 to 2.6%, Mo: 0.05 to 1.5%; W: 1.4 to 2.0%, V: 0.4 to 1.0%; Ni: 0.4% or less (excluding 0%); Nb: 0.10% or less (excluding 0%); Ti: 0.10% or less (excluding 0%); N: 0.015% or less (excluding 0%); Al: 0.06% or less (excluding 0%); B: 0.007% or less (excluding 0%); and the balance being Fe and inevitable impurities.

Abstract: Provided are a chromium-molybdenum steel plate having excellent creep strength and a method for manufacturing same. The chromium-molybdenum steel plate of the present invention comprises, by weight %, 0.11-0.15% of C, 0.10% or less of Si (exclusive of 0%), 0.3-0.6% of Mn, 0.010% or less of S (exclusive of 0%), 0.015% or less of P (exclusive of 0%), 2.0-2.5% of Cr, 0.9-1.1% of Mo, 0.65-1.0% of V, 0.25% or less of Ni (exclusive of 0%), 0.20% or less of Cu (exclusive of 0%), 0.07% or less of Nb (exclusive of 0%), 0.03% or less of Ti (exclusive of 0%), 0.015% or less of N (exclusive of 0%), 0.025% or less of Al (exclusive of 0%), 0.002% or less of B (exclusive of 0%), and the remainder of Fe and unavoidable impurities.