Corrosion handbook

38 06/21
5.2 Selecting the right installation system
Hilti’s installation systems are supplied in various coating technologies to meet
the requirements in all conditions:
Hilti system
Indoor
Coated
Outdoor Coated Outdoor Plus
Zn HDG Zn HDG ZM S A2 S A4
MM-Channels X
MM-Components X
MQ-Channels X X X X X
MQ-Components X X X
MT-Channels X X
MT-Components X X
MI & MIQ-Channels X
MI & MIQ-Components X
MC-Channels X X
MC-Components X
The typical lifetime expectancy of Hilti’s installation systems is shown in the table
below:
Indoor coated
(C1–C2)
Outdoor coated (C3) Outdoor Plus
Installation
systems
Channel
system
MT, MQ,
MM, MC
MT-OC. MQ-F,MQ ASTM,
MC-OC, MI, MIQ
MQ system
stainless A2/
AISI 304
MQ system
stainless A4/
AISI 316
Pipe
fastening
Indoor pipe
rings
1
HDG pipe rings
2
MI-UB, MI-PS Stainless pipe rings
3
Environmental conditions Lifetime (in years)
Dry indoor 50–100 100
Indoor with temporary
condensation
25–70 50–100
Outdoor with low
pollution
5–10 25–70
Outdoor with mode-
rate concentration of
pollutants
– 15–40
Coastal areas – 5–20 ‒
Outdoor, areas with
heavy industrial
pollution
– 5–20 ‒
Close proximity to roads – – ‒
Special
applications
Consult experts
= expected lifetime of an installation system made from this material is typically satisfactory in the specified environment.
1)
Indoor pipe rings: MP-H, MP-HI, MP-LH, MP-LHI, MPN, MP-MI, MP-MIS, MP-M, MP-MXI, MP-MX, MP-PI, SDC, MP-SP
2)
HDG pipe rings: MP-MI-F, MP-M-F, MP-MXI-F, MP-MX-F
3)
Stainless pipe rings: MP-SRN, MP-SRNI, MP-MR, MP-MRI, MP-MRXI
Note
1. Lifetime refers to the potential numbers of years until there is 5% red rust formation on any given product’s surface within
the system (generally threaded parts, not profiles, connectors or baseplates)
2. Lifetime is influenced by the exact environmental conditions of the project location