16MnCr5 steel  (1.7131): EN 10084-2008

16MnCr5 steel are alloyed case hardening engineering steels for parts which require core tensile strength of 800 – 1100 N/mm² and good wearing resistance. It is an engineering material typically used to manufacture piston bolts, camshafts, levers and other vehicle and mechanical engineering components. It is a low-alloy steel that is composed of a combination of elements, including carbon, manganese and chromium. The carbon content in this steel is typically around 0.16%, while the manganese content is around 1.00%. Chromium is present in a concentration of around 1.10%.

One of the unique properties of 16MnCr5 steel is its ability to be heat-treated. This process involves heating the steel to a high temperature and then rapidly cooling it. This causes the steel to become harder and more durable, making it a popular choice for gears and other components that need to be strong and durable. Additionally, the heat treatment process also allows for greater control over the hardness of the steel, as different amounts of elements can be added to achieve different levels of hardness.

Another unique property of 16MnCr5 steel is its ability to be machined and processed easily. This steel is able to be cut, drilled, and machined with relative ease, making it a popular choice for many different applications. It is also relatively easy to weld, which makes it a popular choice for many different types of structures and machines.

16MnCr5 steel is also known for its excellent wear resistance, making it a suitable option for gears and other components that are exposed to high levels of wear and tear. Additionally, it has a good combination of strength and ductility which makes it a suitable option for applications that require a balance of strength and flexibility.

International Standard

Equivalent grades of   steel   16MnCr5 (1.7131)
Warning! Only for reference

EU
EN
USA
Germany
DIN,WNr
France
AFNOR
England
BS
Italy
UNI
Spain
UNE
China
GB
Sweden
SS
Poland
PN
Czechia
CSN
Russia
GOST
Inter
ISO
16MnCr5
SAE5115
16MnCr5
16MC5
527M17
590M17
16MnCr5
16MnCr5
15CrMn
16MnCr
20CrMnTi
2127
15HG
14220
18KHG
16MnCr5

Available Types & Range

Form of Supply Size(mm) Length(mm)
Round bar Φ 16 -Φ 140 Standard or As your request
Forged Rounds Φ 140  – Φ 650 Standard or As your request
Forged Flats Thickness : 65 – 450
Width: 130 – 650
Standard or As your request

Chemical Composition & Technical Specification –16MnCr5

C Si Mn P S Cr
0.14 – 0.19 max   0.4 1 – 1.3 max   0.025 max   0.035 0.8 – 1.1

Mechanical properties of   steel   16MnCr5 (1.7131)

Nominal thickness (mm): to 16
Rm – Tensile strength (MPa) hardening and tempering at 200 1000
Rm – Tensile strength (MPa) (+A) 550
Rp0.2 0.2% proof strength (MPa) (+A) 420
A – Min. elongation Lo = 80 mm (%) (+A) 21
Z – Reduction in cross section on fracture (%) 62-64
  Brinell hardness   (HBW):   (+A) 207
  Brinell hardness   (HBW):   (+TH) 156 – 207
  Brinell hardness   (HBW):   (+FP) 140 – 187
  Brinell hardness   (HBW):   (+N) 138 – 187
  Rockwell B hardness  ( HRB or RB):   (+A) 84
  Vickers hardness  ( HV):   (+A) 170

Carburizing
Temperature: 880-980oC.

Case Hardening
Temperature: 780-820oC.

Core Hardening
Harden from a temperature of 860-980oC followed by water, oil or thermal bath quenching.

Tempering
Tempering temperature: 150-200oC.

Forging
Hot forming temperature: 1100-850oC.

Soft Annealing
Heat to 650-700oC, cool slowly.

Intermediate Annealing
Temperature: 650-680oC.

Normalizing
Temperature: 850-880oC.

Properties of   steel   16MnCr5 (1.7131)

Weldability: It is a MnCr alloy steel, easily hot machinable and weldable
Hardenability: It has a low hardenability and therefore it can show good core features till thicknesses of about 20 mm.