SA-350 Grade LF1 (米国 / ASME) Material Properties
材料グループ:
鉄合金 / 構造・建築鋼
国 / 規格:
米国 / ASME
データ更新
最新情報: 2024-03
更新の総数: 5
更新履歴:
2024-02
2024-01
2023-11
2023-10
機械的特性
温度
物理的特性
温度
成分
基準
値
単位
CAS 番号
基準
C
値
≤ 0.30
単位
%
CAS 番号
7440-44-0
基準
CEV
値
≤ 0.45
単位
%
CAS 番号
基準
Cr
値
≤ 0.30
単位
%
CAS 番号
7440-47-3
ASME Boiler and Pressure Vessel Code An International Code Section II - Part A Ferrous Material Specifications / American Society of Mechanical Engineers / 2023
熱処理
- Forgings shall be furnished in the normalized, or in the normalized and tempered, or in the quenched and tempered condition. <br><br>Normalize: Heat to a temperature that produces an austenitic structure, holding sufficient time to attain uniform temperature throughout. Cool uniformly in still air.<br><br>Normalize and Temper: subsequent to normalize, reheat to 590°C (1100°F) minimum, holding at temperature a minimum of 30 min/25 mm of maximum thickness, but in no case less than 30 min. Cool in still air.<br><br>Quench and Temper: the procedure for quenching shall consist of either (1) fully austenitizing the forgings followed by quenching in a suitable liquid medium or<br>(2) using a multiple stage procedure whereby the forging is first fully austenitized and rapidly cooled, then reheated to partially reaustenitize, followed by quenching in a suitable liquid medium.<br>All quenched forgings shall be tempered by reheating to a temperature between 590°C (1100°F) and the lower transformation temperature, holding at temperature a minimum of 30 min/25 mm of maximum thickness but in no case less than 30 min. Cool in still air.