Chicago Bridge & Iron 10-Q 2009 Q2 Quarterly report

Exhibit 32.2

CERTIFICATION PURSUANT TO
18 U.S.C. SECTION 1350,
AS ADOPTED PURSUANT TO
SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with this Quarterly Report of Chicago Bridge & Iron Company N.V. (the “Company”) on Form 10-Q for the period ending June 30, 2009 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Ronald A. Ballschmiede, Principal Financial Officer of the Company, certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, that:

(1)	This Quarterly Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934; and
(2)	The information contained in this Quarterly Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

/s/ Ronald A. BallschmiedeRonald A. Ballschmiede
Principal Financial Officer
July 28, 2009