Abstract: A substrate processing apparatus includes a device management controller including a parts management control part configured to monitor the state of parts constituting the apparatus, a device state monitoring control part configured to monitor integrity of device data obtained from an operation state of the parts constituting the apparatus, and a data matching control part configured to monitor facility data provided from a factory facility to the apparatus. The device management controller is configured to derive information evaluating the operation state of the apparatus based on a plurality of monitoring result data selected from a group consisting of maintenance timing monitoring result data acquired by the parts management control part, device state monitoring result data acquired by the device state monitoring control part, and utility monitoring result data acquired by the data matching control part.

Abstract: A substrate processing apparatus includes a device management controller including a parts management control part configured to monitor the state of parts constituting the apparatus, a device state monitoring control part configured to monitor integrity of device data obtained from an operation state of the parts constituting the apparatus, and a data matching control part configured to monitor facility data provided from a factory facility to the apparatus. The device management controller is configured to derive information evaluating the operation state of the apparatus based on a plurality of monitoring result data selected from a group consisting of maintenance timing monitoring result data acquired by the parts management control part, device state monitoring result data acquired by the device state monitoring control part, and utility monitoring result data acquired by the data matching control part.

Abstract: A substrate processing apparatus includes a device management controller including a parts management control part configured to monitor the state of parts constituting the apparatus, a device state monitoring control part configured to monitor integrity of device data obtained from an operation state of the parts constituting the apparatus, and a data matching control part configured to monitor facility data provided from a factory facility to the apparatus. The device management controller is configured to derive information evaluating the operation state of the apparatus based on a plurality of monitoring result data selected from a group consisting of maintenance timing monitoring result data acquired by the parts management control part, device state monitoring result data acquired by the device state monitoring control part, and utility monitoring result data acquired by the data matching control part.

Abstract: A substrate processing apparatus includes a device management controller including a parts management control part configured to monitor the state of parts constituting the apparatus, a device state monitoring control part configured to monitor integrity of device data obtained from an operation state of the parts constituting the apparatus, and a data matching control part configured to monitor facility data provided from a factory facility to the apparatus. The device management controller is configured to derive information evaluating the operation state of the apparatus based on a plurality of monitoring result data selected from a group consisting of maintenance timing monitoring result data acquired by the parts management control part, device state monitoring result data acquired by the device state monitoring control part, and utility monitoring result data acquired by the data matching control part.

Abstract: Provided is a method for producing a circumferential weld joint. With this method, when low-carbon martensitic stainless steel pipes used for pipelines for transportation of petroleum and natural gas are subjected to circumferential welding, the circumferential welding can be performed efficiently using a low-cost welding material having a composition similar to the composition of the low-carbon martensitic stainless steel pipes. Pipe ends of low-carbon martensitic stainless steel pipes containing prescribed components are butted against each other and subjected to multi-pass arc welding using a welding material containing prescribed components. In the first pass in the multi-pass arc welding, CMT welding is performed in which the welding material is moved back and forth against a molten pool to generate an arc intermittently. In the second and subsequent passes, one selected from GMA welding, GTA welding, and the CMT welding is performed.

Abstract: Provided is a method for producing a circumferential weld joint. With this method, when low-carbon martensitic stainless steel pipes used for pipelines for transportation of petroleum and natural gas are subjected to circumferential welding, the circumferential welding can be performed efficiently using a low-cost welding material having a composition similar to the composition of the low-carbon martensitic stainless steel pipes. Pipe ends of low-carbon martensitic stainless steel pipes containing prescribed components are butted against each other and subjected to multi-pass arc welding using a welding material containing prescribed components. In the first pass in the multi-pass arc welding, CMT welding is performed in which the welding material is moved back and forth against a molten pool to generate an arc intermittently. In the second and subsequent passes, one selected from GMA welding, GTA welding, and the CMT welding is performed.

Abstract: A substrate processing apparatus includes a device management controller including a parts management control part configured to monitor the state of parts constituting the apparatus, a device state monitoring control part configured to monitor integrity of device data obtained from an operation state of the parts constituting the apparatus, and a data matching control part configured to monitor facility data provided from a factory facility to the apparatus. The device management controller is configured to derive information evaluating the operation state of the apparatus based on a plurality of monitoring result data selected from a group consisting of maintenance timing monitoring result data acquired by the parts management control part, device state monitoring result data acquired by the device state monitoring control part, and utility monitoring result data acquired by the data matching control part.

Abstract: A pipe having chemical composition contains, by mass %, C: 0.05% or less, Si: 0.5% or less, Mn: 0.15% or more and 1.0% or less, Cr: 13.5% or more and 15.4% or less, Ni: 3.5% or more and 6.0% or less, Mo: 1.5% or more and 5.0% or less, Cu: 3.5% or less, W: 2.5% or less, and N: 0.15% or less so that the relationship ?5.9×(7.82+27C?0.91 Si+0.21Mn?0.9Cr+Ni?1.1Mo?0.55W+0.2Cu+11N)?13.0 is satisfied.

Abstract: A seamless steel pipe has a composition containing, by mass %, C: 0.15 to 0.50%, Si: 0.1 to 1.0%, Mn: 0.3 to 1.0%, P: 0.015% or less, S: 0.005% or less, Al: 0.01 to 0.1%, N: 0.01% or less, Cr: 0.1 to 1.7%, Mo: 0.40 to 1.1%, V: 0.01 to 0.12%, Nb: 0.01 to 0.08%, Ti: 0.03% or less, and B: 0.0005 to 0.003%, a structure composed of a tempered martensite phase as a main phase with a prior austenite grain size of 8.5 or more, and a hardness distribution in which in four portions 90° apart from each other in the circumferential direction, hardness is 295 HV10 or less in any one of an inner surface-side region at 2.54 to 3.81 mm from the inner surface of the pipe, an outer surface side-region at the same distance from the outer surface of the pipe, and a center of the thickness.

Abstract: A pipe having chemical composition contains, by mass %, C: 0.05% or less, Si: 0.5% or less, Mn: 0.15% or more and 1.0% or less, Cr: 13.5% or more and 15.4% or less, Ni: 3.5% or more and 6.0% or less, Mo: 1.5% or more and 5.0% or less, Cu: 3.5% or less, W: 2.5% or less, and N: 0.15% or less so that the relationship ?5.9×(7.82+27C?0.91 Si+0.21Mn?0.9Cr+Ni?1.1Mo?0.55W+0.2Cu+11N)?13.0 is satisfied.

Abstract: A steel material has a chemical composition containing, by mass %, C: 0.005% or more and 0.06% or less, Si: 0.05% or more and 0.5% or less, Mn: 0.2% or more and 1.8% or less, Cr: 15.5% or more and 18.0% or less, Ni: 1.5% or more and 5.0% or less, V: 0.02% or more and 0.2% or less, Al: 0.002% or more and 0.05% or less, N: 0.01% or more and 0.15% or less, O: 0.006% or less, and further contains one or more of Mo: 1.0% or more and 3.5% or less, W: 3.0% or less and Cu: 3.5% or less, in which Cr+0.65Ni+0.60Mo+0.30W+0.55Cu-20C?19.5 and Cr+Mo+0.50W+0.30Si-43.5C-0.4Mn—Ni-0.3Cu-9N?11.5 are satisfied, is made into a seamless steel tube by performing heating and hot rolling.

Abstract: A seamless steel pipe has a composition containing, by mass %, C: 0.15 to 0.50%, Si: 0.1 to 1.0%, Mn: 0.3 to 1.0%, P: 0.015% or less, S: 0.005% or less, Al: 0.01 to 0.1%, N: 0.01% or less, Cr: 0.1 to 1.7%, Mo: 0.40 to 1.1%, V: 0.01 to 0.12%, Nb: 0.01 to 0.08%, Ti: 0.03% or less, and B: 0.0005 to 0.003%, a structure composed of a tempered martensite phase as a main phase with a prior austenite grain size of 8.5 or more, and a hardness distribution in which in four portions 90° apart from each other in the circumferential direction, hardness is 295 HV10 or less in any one of an inner surface-side region at 2.54 to 3.81 mm from the inner surface of the pipe, an outer surface side-region at the same distance from the outer surface of the pipe, and a center of the thickness.

Abstract: A seamless expandable oil country tubular article, which has a superior pipe expansion property in a expanding process at an expand ratio of more than about 30% although having a high strength such as a tensile strength (TS) of about 600 MPa or more, and a manufacturing method thereof, the seamless expandable oil country tubular goods being in an as-rolled state or being processed, optionally necessary, by inexpensive nonthermal-refining type heat treatment.

Abstract: A martensitic stainless steel pipe having a heat-affected zone with high resistance to intergranular stress corrosion cracking is provided. In particular, the martensitic stainless steel pipe contains less than 0.0100% of C; less than 0.0100% of N; 10% to 14% of Cr; and 3% to 8% of Ni on a mass basis. Alternatively, the martensitic stainless steel pipe may further contain Si, Mn, P, S, and Al within an appropriate content range. The martensitic stainless steel pipe may further contain one or more selected from the group consisting of 4% or less of Cu, 4% or less of Co, 4% or less of Mo, and 4% or less of W and one or more selected from the group consisting of 0.15% or less of Ti, 0.10% or less of Nb, 0.10% or less of V, 0.10% or less of Zr, 0.20% or less of Hf, and 0.20% or less of Ta on a mass basis. The content Csol defined by the following equation is equal to less than 0.0050%: Csol=C??×Cpre, wherein Cpre=12.0 {Ti/47.9+½(Nb/92.9+Zr/91.2)+?(V/50.9+Hf/178.5+Ta/180.9)?N/14.0} or Cpre=0 when Cpre<0.

Abstract: A martensitic stainless steel seamless tube for oil country tubular goods includes a yield strength of 95 ksi or more and low-temperature toughness in which a fracture transition temperature vTrs in a Charpy impact test is ?40° C. or below, wherein the seamless tube has a composition comprising, by mass %, 0.020% or less C, 10 to 14% Cr, 3% or less Ni, 0.03 to 0.2% Nb, 0.05% or less N, and Fe and unavoidable impurities as a balance, and has a structure where a precipitated Nb quantity is 0.020% or more in terms of Nb.

Abstract: A seamless steel pipe for oil country tubular goods which simultaneously has a high strength of a 110 ksi grade of yield strength and a superior low temperature toughness and a method for manufacturing the same are provided. A quenching treatment is performed on a stainless steel seamless pipe having a composition which contains on a mass percent basis, less than 0.010% of C, 1.0% or less of Si, 0.1% to 2.0% of Mn, 0.020% or less of P, 0.010% or less of S, 0.10% or less of Al, 10% to 14% of Cr, 0.1% to 4.0% of Ni, 0.05% or less of N, and the balance being Fe and inevitable impurities in which after heating is performed to a heating temperature for quenching equivalent to or more than the Ac3 transformation point, cooling is performed to a temperature range of 100° C. or less at a cooling rate equivalent to or more than that of air cooling; and following the quenching treatment, a tempering treatment is performed in which heating is performed to a tempering temperature in the range of more than 450° C.

Abstract: A martensitic stainless steel pipe having a heat-affected zone with high resistance to intergranular stress corrosion cracking is provided. In particular, the martensitic stainless steel pipe contains less than 0.0100% of C; less than 0.0100% of N; 10% to 14% of Cr; and 3% to 8% of Ni on a mass basis. Alternatively, the martensitic stainless steel pipe may further contain Si, Mn, P, S, and Al within an appropriate content range. The martensitic stainless steel pipe may further contain one or more selected from the group consisting of 4% or less of Cu, 4% or less of Co, 4% or less of Mo, and 4% or less of W and one or more selected from the group consisting of 0.15% or less of Ti, 0.10% or less of Nb, 0.10% or less of V, 0.10% or less of Zr, 0.20% or less of Hf, and 0.20% or less of Ta on a mass basis. The content Csol defined by the following equation is equal to less than 0.0050%: Csol=C??×Cpre, wherein Cpre=12.0{Ti/47.9+½(Nb/92.9+Zr/91.2)+?(V/50.9+Hf/178.5+Ta/180.9)?N/14.0} or Cpre=0 when Cpre<0.

Abstract: The present invention provides a seamless expandable oil country tubular goods, which has a superior pipe expansion property in a expanding process at an expand ratio of more than 30% although having a high strength such as a tensile strength (TS) of 600 MPa or more, and a manufacturing method thereof, the seamless expandable oil country tubular goods being in an as-rolled state or being processed, whenever necessary, by inexpensive nonthermal-refining type heat treatment. In a particular product, 0.010% to less than 0.10% of C, 0.05% to 1% of Si, 0.5% to 4% of Mn, 0.03% or less of P, 0.015% or less of S, 0.01% to 0.06% of Al, 0.007% or less of N, and 0.005% or less of O are contained, and at least one of Nb, Mo, and Cr is contained in the range of 0.01% to 0.2% of Nb, 0.05% to 0.5% of Mo, and 0.05% to 1.5% of Cr, so that Mn+0.9×Cr+2.6×Mo?2.0 and 4×C?0.3×Si+Mn+1.3×Cr+1.5×Mo?4.5 are satisfied.

Abstract: The invention proposes a method for manufacturing a seamless steel pipe having high strength, high toughness, and high formability for an airbag. A method for manufacturing a seamless steel pipe comprising a process for manufacturing a raw material for steel pipe having a composition containing 0.01 to 0.10% of C, 0.5% or less of Si, 0.10 to 2.00% of Mn, more than 1.0% and 2.0% or less of Cr, and 0.5% or less of Mo to form the seamless steel pipe, a process for drawing the seamless steel pipe in cold working, and a quenching and tempering process for heating the seamless steel pipe to Ac3 transformation point or more and 1050° C. or less and then quenching, then tempering at 450° C. or more and Ac1 transformation point or less is proposed. A method for manufacturing a seamless steel pipe where the cold drawing process is replaced after the quenching and tempering process is proposed. The composition may further contain, in addition to the composition, one or two or more selected from 1.0% or less of Cu, 1.

Abstract: A method of producing a high-strength high-toughness martensitic stainless steel seamless pipe which includes heating a martensitic stainless steel raw material to an austenitic range and subjecting the raw material to piercing and elongating to form an original pipe. The original pipe is cooled to form a structure substantially composed of martensite in the original pipe. The original pipe is reheated to a temperature in the dual-phase range between the Ac1 transformation point and the Ac3 transformation point, and is subjected to finishing rolling at an initial rolling temperature T (° C.) between the Ac1 transformation point and the Ac3 transformation point. The original pipe is then cooled to form a processed pipe. The processed pipe is tempered at a temperature below the Ac1 transformation point. The reduction in area R in the finishing rolling step may be in the range of 10% to 90%, and the initial rolling temperature T and the reduction in area R may satisfy the relationship 800?T?0.625R?850.