Sumitomo Metal Industries, Inc.

Nippon Steel Corporation

Otsuka Pharmaceutical Company, Limited

Somalogic, Incorporated

Nippon Steel Sumitomo Metal Corporation

Toshihide Ono

Satoshi Matsumoto

Hiroyuki Hirata

Yasuyoshi Hidaka

Sumio Iida

Kana Jotoku

Kouji Nakaike

Hitoshi Suwabe

Tomoaki Hamaguchi

Satoshi Tsuyuguchi

Daniel J Schneider

Hiroshi Nogami

Hirokazu Okada

Yoshitaka Nishiyama

Katsuki Tanaka

Hiroyuki Semba

Atsuro Iseda

Sheela M Waugh

Mitsuru Yoshizawa

Daniel I Resnicow

Tadashi Kawakami

Akihiko Hisaminato

Akira Nagabukuro

Yoshihiro Tatsumi

Mikio Yoneyama

Daniel Resnicow

The present invention provides a welding material for ferritic heat-resistant steel, a welded joint for ferritic heat-resistant steel, and a method for producing the welded joint for to form a weld metal having a high creep strength and a high toughness in welding a ferritic heat-resistant steel that contains B. The welding material for ferritic heat-resistant steel has a chemical composition containing, in mass %, C: 0.06 to 0.10%, Si: 0.1 to 0.4%, Mn: 0.3 to 0.7%, Co: 2.6 to 3.4%, Ni: 0.01 to 1.10%, Cr: 8.5 to 9.5%, W: 2.5 to 3.5%, Nb: 0.02 to 0.08%, V: 0.1 to 0.3%, Ta: 0.02 to 0.08%, B: 0.007 to 0.015%, N: 0.005 to 0.020%, with the balance being Fe and impurities, and satisfying Formula (1):0.5&#x2264;Cr+6Si+1.5W+11V+5Nb+10B&#x2212;40C&#x2212;30N&#x2212;4Ni&#x2212;2Co&#x2212;2Mn&#x2264;10.0&#x2003;&#x2003;(1).

Welding material for ferritic heat-resistant steel, welded joint for ferritic heat-resistant steel, and method for producing welded joint for ferritic heat-resistant steel

A high Cr austenitic stainless steel with a chemical composition consisting of in terms of % by mass, 0.03 to 0.12% of C, 0.10 to 1.00% of Si, 0.10 to 3.00% of Mn, 0.030% or less of P, 0.020% or less of S, 21.50 to 28.00% of Cr, more than 26.00 and not more than 35.00% of Ni, more than 2.00 and not more than 5.00% of W, 0.80% or less of Co, 0.01 to 0.70% of V, 0.15 to 1.00% of Nb, 0.001 to 0.040% of Al, 0.0001 to 0.0100% of B, 0.010 to 0.400% of N, 0.001 to 0.200% of Zr, 0.001 to 0.200% of Nd, 0.001 to 0.200% of Ta, 0.020 to 0.200% of Ta+0.8Nd+0.5Zr, 0.025% or less of Ti+Sn+Sb+Pb+As+Bi, 0.0090% or less of O, and a remainder consisting of Fe and impurities.

High Cr-based austenitic stainless steel

The present disclosure relates generally to the field of nucleic acids and, more particularly, to aptamers capable of binding to &#x3b2;-NGF; pharmaceutical compositions comprising such &#x3b2;-NGF aptamers; and methods of making and using the same.

Aptamers to &#x3b2;-NGF and their use in treating &#x3b2;-NGF mediated diseases and disorders

A method for producing a high alloy pipe having a minimum yield strength of 758.3 to 965.2 MPa, comprising: preparing a high alloy pipe having controlled amounts of C, Si, Mn, Ni, Cr, Mo, Cu, and N, the balance being Fe and impurities by a hot working or further by a solid-solution heat treatment; and then subsequently subjecting the high alloy pipe to a cold rolling. The cold rolling is performed such that the working ratio Rd, in terms of the reduction of area, in the final cold rolling step falls within a range of larger than 30% and equal to or less than 80%, and the following formula is satisfied: Rd(%)&#x3e;(MYS&#x2212;520)/3.1&#x2212;(Cr+6&#xd7;Mo+300&#xd7;N) wherein Rd and MYS signify the working ratio (%) in terms of the reduction of area and the targeted yield strength (MPa), respectively, and Cr, Mo and N signify the mass % of the individual elements.

Method for producing high alloy pipe

A process for producing seamless pipes which comprises conducting a piercing rolling step, a elongating rolling step using a mandrel bar, and a sizing rolling step and subsequently conducting a product heat treatment. In the process, when the carbon-equivalent weight, namely the sum of the weight of graphite in the lubricant and the carbon content in the organic binder, per unit area of the lubricant adhering to the mandrel bar surface in the above-mentioned step of elongating rolling is expressed by C (g/m) or the maximum extent of carburization in the inner surface of the pipe to be heat-treated but prior to the heat treatment is expressed by &#x394;C (% by mass), the heating temperature for the pipe to be heat-treated is expressed by T (&#xb0; C.), and the time during which a decarburizing gas is blown into the inside of the pipe to be heat-treated is expressed by tor t(seconds), and further, the blowing time calculated taking into account the wall thickness reduction in the step of cold working is expressed by tor t(seconds), a predetermined relation is satisfied and the actual decarburizing gas blowing time in the heat treatment is longer than the time t, t, tor t(seconds), whereby seamless stainless steel pipes reduced in carburized layer formation can be produced even when the carbon adhesion to the pipe inner surface is caused in, for example, mandrel mill rolling.

Process for producing seamless stainless steel pipe

A method for producing a duplex stainless steel pipe having a minimum yield strength of 758.3 to 965.2 MPa, comprises first hot working and optionally solution heat treating a duplex stainless steel material pipe having a chemical composition consisting, by mass %, of C: 0.03% or less, Si: 1% or less, Mn: 0.1 to 4%, Cr: 20 to 35%, Ni: 3 to 10%, Mo: 0 to 6%, W: 0 to 6%, Cu: 0 to 3% and N: 0.15 to 0.60%, the balance being Fe and impurities. The pipe is then cold rolled under conditions that the working ratio Rd, in terms of the reduction of area, in the final cold rolling step falls within a range from 10 to 80%, and formula (1) is satisfied:=exp[{In()&#x2212;In(14.5&#xd7;Cr+48.3&#xd7;Mo+20.7&#xd7;W+6.9&#xd7;N)}/0.195]&#x2003;&#x2003;(1)wherein Rd is a reduction in area %, MYS is the targeted yield strength (MPa), and Cr, Mo, W and N are in mass %.

Method for producing duplex stainless steel pipe

A process for stainless-steel pipe production which comprises piercing rolling a raw material stainless steel containing, by mass, Cr: 10-30%, to give a hollow shell, elongating rolling the hollow shell using a mandrel bar, together with a graphite-free lubricant, to give a finishing rolling blank pipe and heating the blank pipe in a reheating furnace and subjecting the same to finishing rolling by sizing rolling to produce a hot-finished pipe, and then subjecting this pipe as a mother pipe to cold working to produce a stainless-steel pipe. In the reheating furnace, the finishing rolling blank pipe is heated to 1000&#xb0; C. or more and subjected to heating in which an oxidizing gas is blown into the pipe inside, whereby a stainless-steel pipe which is inhibited from forming a carburized layer in the pipe inner surface can be produced. When the finishing rolling by sizing rolling to give a cold working mother pipe is carried out by stretch reducer rolling at 860-1050&#xb0; C., an annealing heat treatment of the mother pipe for cold working can be omitted. Thus, a stainless-steel pipe having excellent surface quality can be efficiently produced.

Process for producing stainless steel pipe

In the cold rolling process by pilger rolling that holds a mandrel between each of paired roll-dies, by optimizing the side relief rate SR and the pass schedule factors such as the Area Rd, ID Rd and the feed rate F of the workpiece material, and further by properly selecting the taper &#x3b8;in the primary deformation zone of mandrel and the taper &#x3b8;in the final size reduction zone thereof, the dimension-related shape characteristics (near-perfect round shape) of the tube inside surface after the final finishing rolling process by pilger rolling can be ascertained to thereby ensure excellent surface property without requiring a new apparatus, and further without causing the decrease of the product yield and/or the increase of the manufacturing costs. Thus, this can be widely applied for producing steam generator tubes which exhibits high S/N ratio in the inner coil eddy current testing.

Cold rolling process for metal tubes

In the cold rolling process by pilger rolling that holds a mandrel between each of paired roll-dies, by optimizing the side relief rate SR and the mandrel factors like the taper &#x3b8;in the primary deformation zone of the mandrel and the taper &#x3b8;in the final size reduction zone thereof, and the feed rate F of the workpiece material, and at the same time by properly adjusting the relationship between the side relief rate SR and the feed rate F, the dimension-related shape characteristics (near-perfect round shape) of the tube inside surface after the final finishing rolling process by pilger rolling can be ascertained to thereby ensure excellent surface property without requiring a new apparatus, and further without causing the decrease of the product yield and/or the increase of the manufacturing costs. Thus, this can be widely applied for producing steam generator tubes which exhibits high S/N ratio in the inner coil eddy current testing.

Growing community of inventors

Osaka, Japan

Toshihide Ono