Shanghai Electric International Economic & Trading Co., Ltd.

non magnetic retaining ring for turbine generator

non magnetic retaining ring for turbine generator
Product Detailed

non magnetic retaining ring for turbine generator (18Mn18Cr) is customized which can be rough machining or finish machining.

1-      chemical composition

As per standard of GB/T 223.3-78 Steel/iron and alloy chemolysis method

Material/%

C

Mn

Si

P

S

Cr

Al

N

B

1Mn18Cr18N

≤0.12

17.50-20.00

≤0.80

≤0.050

≤0.015

17.50-20.00

≤0.030

≥0.47

≤0.001

2-     As per standard of ASTM A342-1995 Standard Test Methods for Permeability of Feebly Magnetic Materials

4-     metallographic  tests. As per standard of ASTM E112:1981 (eqv.  YB/T 5148-1993) Standard Test Methods for Determining Average Grain Size

5-      mechanical  properties. As per standard of ASTM A370-1997 Standard Test Methods and Definitions for Mechanical Testing of Steel Products; As per standard of ASTM E112:1981 (eqv.  YB/T 5148-1993) Standard Test Methods for Determining Average Grain Size; As per standard of ISO738:1989 (eqv. GB/T 4338-1995) Metallic materials-Tensile testing at elevated temperature

6-      non-destructive  tests, As per standard of ASTM A531-1974 (eqv. JB/T 4010-1985) Standard Practice for Ultrasonic Examination of Turbine-Generator Steel Retaining Rings; As per standard of ASTM E165-1995 Standard Test Method for Liquid Penetrant Examination



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