The main materials used in the manufacture of welded luminous bellows are:

a) Corrosion-resistant austenitic steel AISI 316L, AISI 304;

b) Corrosion-resistant dispersion hardened steel of AM- 350 (for bellows with high operational life requirements and heavy loads);

c) Corrosion and heat resistant iron-nickel alloy Hastelloy C 276;

g ) Corrosion and heat resistant iron- nickel alloy Inconel 718.

 

All materials used for the manufacture of bellows are tested and checked for compliance with quality.

Basic material designs for various environments:

                            

Item	Grade	Temperature range	Application Characteristics
300-series steel	ASTM A240	-2510C ~ 2500C	Dynamic stress. High temperature. Load capacity.
АМ 350	ASTM A693	-730C ~ 4270C	Static stress. High cycle life and load capacity. Wide range of applications.
Hastelloy	ASTM B575	-2510C ~ 9820C	Dynamic stress. Very high temperature. Load capacity. High corrosive environment.
Inconel	ASTM B443 ASTM B670	-2510C ~ 8150C	Dynamic stress. High temperature. Large load capacity. High corrosive environment.