BS EN ISO 8249 , تعیین عدد فریت استنلس

BS EN ISO 8249 : Welding – Determination of Ferrite Number (FN) in austenitic and duplex ferritic-austenitic Cr-Ni stainless steel weld metals

دانلود استاندارد BS EN ISO 8249 (استاندارد تعیین عدد فریت، فریت نامبر، در فولاد ضد زنگ آستنیتی و استنلس داپلکس فریتی-آستنیتی ، جهت جوشکاری متریال استنلس استیل)

فهرست استاندارد:

1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Calibration
5.1 Coating thickness standards
5.2 Magnet
5.3 Instruments
5.4 Calibration curve
6 Standard method for covered electrode test pads
6.1 Dimensions of weld metal test specimens
6.2 Depositing weld metal test specimens
6.3 Measuring
6.3.1 Surface finishing
6.3.2 Individual measurements
6.3.3 Reporting
7 Standard methods for test pads of other processes and for production welds
7.1 Standard method for test pads for other weld metals
7.2 Production welds
8 Other methods
8.1 Methods
8.2 Maintaining calibration
9 Procedures used to prepare secondary standards for delta ferrite in austenitic stainless steel weld metal
Annex A (informative) Manufacture of secondary standards by strip cladding
Annex B (informative) Manufacture of secondary standards by centrifugal chill casting