公开(公告)号：EP3086895A1

公开(公告)日：2016-11-02

申请号：EP14821196.4

申请日：2014-12-23

Applicant: Sandvik Intellectual Property AB

Inventor： LARSSON, Linn ,  GULLBERG, Daniel ,  KIVISÄKK, Ulf ,  ÖSTLUND, Martin ,  SCHEERDER, Alexander Aleida Antonius

IPC: B22F3/15 ,  C22C33/02 ,  C22C38/40

Abstract: Disclosed is a Hot Isostatic Pressed ferritic-austenitic steel alloy, as well objects thereof. The elementary composition of the alloy comprises, in percentages by weight: C 0 - 0.05; Si 0 - 0.8; Mn 0 - 4.0; Cr more than 29 - 35; Ni 3.0 - 10; Mo 0 - 4.0; N 0.30 - 0.55; Cu 0 - 0.8; W 0 - 3.0; s 0 - 0.03; Ce 0 - 0.2; the balance being Fe and unavoidable impurities. The objects can be particularly useful in making components for a urea production plant that require processing such as machining or drilling. A preferred use is in making, or replacing, liquid distributors as used in a stripper as is typically present in the high-pressure synthesis section of a urea plant.

Abstract translation: 公开了热等静压铁素体 - 奥氏体钢合金及其目的。 该合金的基本组成按重量百分比计包括：C 0-0.05; Si 0-0.8; Mn 0-4.0; Cr超过29 - 35; Ni 3.0 - 10; Mo 0 - 4.0; N 0.30 - 0.55; Cu 0-0.8; W 0 - 3.0; s 0-0.03; Ce 0 - 0.2; 余量是铁和不可避免的杂质。 这些物体在制造需要加工如加工或钻孔的尿素生产设备的部件时特别有用。 一种优选的用途是制造或更换在汽提塔中使用的液体分配器，如通常存在于尿素装置的高压合成部分中的那样。