Advantages
BOZHONG 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 BOZHONG improved resistance to temper embrittlement as well as excellent low temperature impact toughness properties.

Find out more on our production process

BOZHONG 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 (BOZHONG 91 & BOZHONG 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…).

Application
• 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, BOZHONG

INDUSTEEL TRADEMARKS	PLATES ASTM A / ASME SA	PLATES EN 10028 series	FORGINGS ASTM A / ASME SA	OTHER
BOZHONG 11	A/SA 387 Grade 11 Class 2 UNS K11789	13CrMoSi5-5 1.7336	A/SA 336 Grade F11 Class 3	-
BOZHONG 22	A/SA 387 Grade 22 Class 2 UNS K21590	10CrMo9-10 1.7380	A/SA 336 Grade F22 Class 3	-
BOZHONG 22 Enhanced	A/SA 542 Type B Class 4 UNS K21590	12CrMo9-10 1.7375	A/SA 508 Grade 22 Class 4	-
BOZHONG  22V	A/SA 542 Type D Class 4a UNS K31835	13CrMoV9-10 1.7703	A/SA 336 Grade F22V	-
BOZHONG 5	A/SA 387 Grade 5 Class 2 UNS S50200	X12CrMo5 1.7362	A/SA 336 Grade F5	-
BOZHONG 9	A/SA 387 Grade 9 Class 2 UNS K90941	-	A/SA 336 Grade F9	-
BOZHONG 91	A/SA 387 Grade 91 Class 2 UNS K90901	X10CrMoVNb9-1 1.4903	A/SA 336 Grade F91	VdTüV 511/2
BOZHONG 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	-	-