What is EN10083-3 38MnB5 High Alloy Steel Plate

Sep 17, 2025 Leave a message

EN10083-3 38MnB5 is a quenched and tempered boron-alloyed steel (steel number 1.5532) specified by the European standard EN 10083-3 for technical delivery conditions of steel. It is a structural alloy steel used for engineering components and mechanical parts due to its high hardenability and ability to be heat-treated for specific applications.

 

 

EN10083-3 38MnB5 Alloy Steel Chemical Composition

 

 

Grade

Chemical Composition

38MnB5

The Element Max (%)

C

Si

Mn

P

S

Cr

Mo

Ni

V

B

0.36-0.42

0.40

1.15-1.45

0.025

0.035

-

-

-

-

0.0008-0.0050

 

 

EN10083-3 38MnB5 Alloy Steel Mechanical Property

 

 

Grade

Mechanical Property

38MnB5

t

Re
min.

Rm

A
min

Z
min

KV
min.

MPa

%

%

J

≤8mm

900

1050-1250

12

50

-

>8mm≤20mm

700

850-1050

12

50

60

>20mm≤60mm

-

-

-

-

-

>60mm≤100mm

-

-

-

-

-

>100mm≤160mm

-

-

-

-

-

 

 

EN10083-3 38MnB5 boron-alloyed steel Plate Application

 

 

Mechanical manufacturing field

EN10083-3 38MnB5 alloy steel plates feature high strength, high wear resistance, and high harden ability, and are widely used for bearings and gears of rotating machinery, as well as valve bodies, pumps and accessories, wheels, bolts, studs, etc.

In addition, EN10083-3 38MnB5 alloy structural steel, with its characteristics of high strength, high toughness, good harden ability and wear resistance, is used in mechanical manufacturing to make gears, connecting rods, tools, molds and other parts.

 

Automotive and transportation field

EN10083-3 38MnB5 high alloy steel plates are often used in automobile manufacturing and can be made into parts such as crankshafts, axles, and gears, which need to have high strength and toughness. In terms of railway transportation, EN10083-3 38MnB5 alloy steel plates can be used to manufacture related mechanical parts after quenching and tempering.

 

Aerospace and military field:

EN10083-3 38MnB5 alloy special steel plates are often used to manufacture parts of aircraft and military equipment, such as gears, shafts, and engine parts, due to their excellent wear resistance and fatigue resistance.

 

Construction and large - scale structure field:

EN10083-3 38MnB5 hot-rolled alloy steel plates can be used to manufacture structural parts of large - scale structures such as ships and bridges, providing necessary strength and stability for these large - scale structures.

 

Energy and power field

EN10083-3 38MnB5 alloy steel plates can be used to make header of super heater in power station boilers, etc., and can also be used in power generation equipment, such as key parts of coal - fired, gas - fired and nuclear power generation equipment (similar to the use of other boilers and pressure vessels).

For example, after wind turbine gearbox components adopt this steel, the trouble-free operation time is increased to 25,000 hours, and the service life of drill pipe joints of oil and gas drilling equipment is extended by about 40% under the working condition of 150 MPa pressure and frequent make-and-break operations.

 

 

EN10083-3 38MnB5 High Alloy Steel Plate Other Name

 

 

EN10083-3 38MnB5 High Alloy Steel Plate,EN10083-3 38MnB5 High Alloy Steel Plates, EN10083-3 38MnB5 High Alloy Steel Sheets, EN10083-3 38MnB5 High Alloy Steel Sheet ,EN10083-3 38MnB5 Quenched and Tempered Boron-alloyed Steel

 

 

Additional Condition

 

 

UT(Ultrasonic examination), AR(As Hot Rolled only), TMCP(Thermal Mechanical Control Processing), N(Normalized), Q+T(Quenched and Tempered),Z Direction Test(Z15,Z25,Z35), Charpy V-Notch Impact Test, The Third Party Test (such as SGS Test), Coated or Shot Blasting and Painting.

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Alloy Steel Plate Related Steel Grades
EN10083-3 EN10083-3 33MnCrB5-2 EN10083-3 39MnCrB6-2 EN10083-3 38MnB5 EN10083-3 27MnCrB5-2 EN10083-3 20MnB5
EN10083-3 30MnB5 EN10083-3 30NiCrMo16-6 EN10083-3 51CrV4 EN10083-3 36NiCrMo16 EN10083-3 39NiCrMo3
EN10083-3 34CrNiM06 EN10083-3 35NiCr6 EN10083-3 50CrMo4 EN10083-3 30CrNiMMo8 EN10083-3 25CrMoS4
EN10083-3 42CrMoS4 EN10083-3 34CrMo4 EN10083-3 34CrMoS4 EN10083-3 25CrMo4 EN10083-3 34Cr4
EN10083-3 41Cr4 EN10083-3 41CrS4 EN10083-3 37Cr4 EN10083-3 37CrS4  
EN10083-3 34CrS4 EN10083-3 38Cr2 High EN10083-3 46Cr2 EN10083-3 42CrMo4  
GB/T 11251 20CrMo 42CrMo 35CrMo 30CrMnS 15CrMo
12Cr1Mov GB/T 11251 30CrMo GB/T 11251 35CrMnSiA GB/T 11251 30CrMnSiA GB/T 11251 40Cr
GBIT 11251 20Cr        
Protection Steel Protection grades BP600 Protection grades BP500 Protection grades BP440 Protection grades BP370 Protection grades BP300

 

EN10083-3 38MnB5 High Alloy Steel Plate

EN10083-3 38MnB5 High Alloy Steel Plate

EN10083-3 38MnB5 High Alloy Steel Plate

EN10083-3 38MnB5 High Alloy Steel Plate