Telephone: +1 713-993-7007
Email: info@hghouston.com
Quench cracking along a line of aluminum oxide dross particles in a hex head capscrew. The aluminum oxide particles were probably added as a "killing" agent in the steeling practice. The gray material in the crack interior is high-temperature oxide formed during tempering. The microstructure is 44 HRC quench and tempered martensite. 2% Nital Etch, 200X
If you have questions or need our depth of experience to help with your issues...
Call us: 713-993-7007
Email us: info@hghouston.com
covering updates on corrosion
Testimonials Contact Us
Linkedin
