Steels for high temperature service

Advantages
Applications

CromElso® is a low-alloyed CrMo steel family specially designed for the construction of pressure equipment such as hydrotreating reactors and exchangers operating in hydrogen service at high temperatures.

It is manufactured in an electric arc furnace using a process that includes desulfurization, dephosphorization, ladle refining and vacuum degassing to provide a reproducible, clean and homogeneous steel.

 

The use of special steelmaking techniques with extra-low phosphorus levels gives CromElso® improved resistance to temper embrittlement as well as excellent low temperature impact toughness properties.

Find out more on our production process

CromElso® is available in plate up to very high thickness and can also be provided in half-shells and mono- or multi-piece heads.

 

Alloyed martensitic 9% Cr grades (CromElso® 91 & CromElso® 92) offer high temperature creep resistance and are available for the construction of high pressure high temperature pipes, as well as for pressure vessels for power generation (thermal, nuclear…).

Examples of applications

  • Refining : Distillation Column, Hydrocracking reactor, Hydrotreating reactor, FCC unit
  • Chemical Plant : Ammonia converter, Ethylene Oxide reactors
  • GTL, CTL : Fischer-Tropsch reactors, Syngas furnaces
  • Boilers, Steam piping for coal or gas-fired power plant
  • Heavy pieces for hydroelectric turbines
  • Steam generator shell plates pressuriser heads

Other grades available for these applications: Stainless steels, Clad plates, CarElso™

INDUSTEEL TRADEMARKS
PLATES
ASTM A / ASME SA
PLATES
EN 10028 series
FORGINGS
ASTM A / ASME SA
OTHER
 
CromElso™ 11 A/SA 387 Grade 11 Class 2
UNS K11789
13CrMoSi5-5
1.7336
A/SA 336 Grade F11 Class 3 -
CromElso™ 22 A/SA 387 Grade 22 Class 2
UNS K21590
10CrMo9-10
1.7380
A/SA 336 Grade F22 Class 3 -
CromElso™ 22 Enhanced A/SA 542 Type B Class 4
UNS K21590
12CrMo9-10
1.7375
A/SA 508 Grade 22 Class 4 -
CromElso™ 22V A/SA 542 Type D Class 4a
UNS K31835
13CrMoV9-10
1.7703
A/SA 336 Grade F22V -
CromElso™ 5 A/SA 387 Grade 5 Class 2
UNS S50200
X12CrMo5
1.7362
A/SA 336 Grade F5 -
CromElso™ 9 A/SA 387 Grade 9 Class 2
UNS K90941
- A/SA 336 Grade F9 -
CromElso™ 91 A/SA 387 Grade 91 Class 2
UNS K90901
X10CrMoVNb9-1
1.4903
A/SA 336 Grade F91 VdTüV 511/2
CromElso™ 92 A/SA 1017 Grade 92
UNS K92460
ASME Code Case 2179
no official standard for X10CrWMoVNb9-2 1.4901 no official standard for Grade F92 VdTüV 552/3
- - 15NiMoCuNb5-6-4
1.6368
- VdTüV 377/1
- A/SA 302 Grade B
UNS K12022
- - -
- A/SA 533 Type B Class 2
UNS K12539
- A/SA 508 Grade 3 Class 2 -
- A/SA 299 Grade A & Grade B
UNS K02803
- - -