DIN 39NiCrMo3 steel is low alloy steel with high hardening capacity and good toughness.It's quenching and tempering steel according to EN 10083. It could achieve optimum mechanical properties with dimensions up to approx. 80mm. Used on heavy-duty machinery parts, automotive accessories and other motor vehicles, engine parts, steam turbine rings, compressor parts, propeller hub, engine pump parts, steam turbine wheels, crankshaft, press parts and shafts for steam turbines. Buth it's weldability is quite limited.
Country | Japan | Euro | French | USA |
Standard | / | EN10083 | / | ASTM A29 |
Grade | / | 39NiCrMo3/1.6510 | / | 9840 |
chemical composition
Grade | C | Si | Mn | P | S | Cr | Mo | Ni |
39NiCrMo3 | 0.35-0.43 | 0.4 | 0.5-0.8 | 0.025 | 0.035 | 0.6-1.0 | 0.15-0.25 | 0.7-1.0 |
9840 | 0.38-0.43 | 0.1-0.30 | 0.7-0.9 | 0.035 | 0.040 | 0.7-0.9 | 0.2-0.3 | 0.85-1.15 |
mechanical properties
The mechanical properties mainly include tensile strength, yield strength, elongation, area or reduction, hardness, impact value, non-metalic inclusion etc. Different heat treatment, the mechanical properties will be different, such as normalized, tempered, QT.
Specification
Size | Round | Dia 6-1200mm |
Plate/Flat/Block | Thickness 6mm-500mm | |
Width 20mm-1000mm | ||
Heat treatment | Normalized ; Annealed ; Quenched ; Tempered | |
Surface condition | Black; Peeled; Polished; Machined; Grinded; Turned; Milled | |
Delivery condition | Forged; Hot rolled; Cold drawn | |
Test | Tensile strength, Yield strength, elongation, area of reduction, impact value, hardness, grain size, ultrasonic test, US inspection, magnetic particle testing, etc. | |
Payment terms | T/T;L/C;/Money gram/ Paypal | |
Trade terms | FOB; CIF; CNF | |
Delivery time | 20-25 days | |
Application | 39NiCrMo3 is used on heavy-duty machinery parts, automotive accessories and other motor vehicles, engine parts, steam turbine rings, compressor parts, propeller hub, engine pump parts, steam turbine wheels, crankshaft, press parts and shafts for steam turbines and so on. Used on heavy-duty machinery parts, automotive accessories and other motor vehicles, engine parts, steam turbine rings, compressor parts, propeller hub, engine pump parts, steam turbine wheels, crankshaft, press parts and shafts for steam turbines so on. |
Delivery condition
For hot forged bar, usually the delivery condition is hot forged, annealed rough turned/Black surface.
For hot rolled bar, usually the delivery condition is hot rolled, annealed, Black surface.
For hot forged plate, usually the delivery condition is hot forged, annealed, milled surface
For hot rolled plate, usually the delivery condition is hot rolled, annealed, black surface.
Heat Treatment and Fabrication
Process | Temperature(ºC) |
End quench test Austenitizing | 880 min |
Carburizing | 880-980 |
Core-hardening | 840-880 |
Case-hardening | 780-820 |
Tempering | 150-200 |
Product Introduction
Good machinability (hobbing and turning).
Good dimensional stability.
Homogenous PESR structure suitable for the production of large components.
Improved polishability, photo-etchability and EDM due to higher purity.
Suitable for single and double hardening.
COLD WORK TOOL STEEL | |||||
Grade | AISI /ASTM | DIN (W.Nr) | JIS | EN/ BS | GB |
DC53 | higher than D2 | SKD11 | XW-5 | Cr8Mo2Vsi | |
D2 | D2 | 1.2379 | SKD11 | BD2 | CR12MO1V1 |
Cr12MoV | CR12MOV | ||||
D3 | D3 | 1.2080 | SKD1 | BD3 | CR12 |
O1 | O1 | 1.2510 | SKS3 | 9CRWMN | |
HMD5 | HMD5 | 7CrSiMnMoV | |||
5CrNiMo | L6 | 55NiCrMoV6 | SKT4 | 5CrNiMo | |
52100 | 52100 | 1.3505 | EN31 | GCR15 | |
HOT WORK TOOL STEEL | |||||
H13 | H13 | 1.2344/1.2342 | SKD61/DAC | 8407 | 4CR5MOSIV1 |
FDAC | 1.2347 | FDAC | FDAC | ||
H11 | H11 | 1.2343 | SKD6 | H11 | |
3Cr2W8V | H21 | 1.2581/ X30WCrV93 | SKD5 | BH21 | 3CR2W8V |
PLASTIC MOULD STEEL | |||||
P20 | P20 | 1.2311 | HPM7/PX88 | 618 | 3CR2MO |
718 | P20+NI | 1.2738 | PX4/PX5 | 718 | 3CR2NIMO |
S136 | 420 | 1.2083 | S-STAR | S136 | 4CR13 |
NAK80 | P21 /P20+S | 1.2312 | NAK80 | 15NI3MN | |
HIGH SPEED STEEL | |||||
M2 | M2 | SKH51 | W6MO5CR4V2 | ||
M42 | M42 | S2-10-1-8 | SKH59 | W2MO9CR4VCO8 | |
ALLOY STRUCTURE STEEL | |||||
Grade | AISI /ASTM | DIN (W.Nr) | JIS | EN/ BS | GB |
5120 | 5120 | 1.7027 /21Cr4 | SCr420 | 20Cr | |
530M40 /5140 | 530M40 /5140 | 1.7035 /41Cr4 | SCr440 | 40Cr | |
5145 | 5145 | Scr445 | 45CR4 | ||
4118 | 4118 | 1.7243 /18CrMo4 | SCM418 / SCM420 | 20CrMo | |
4135 | 4130 | 1.7218 /25CrMo4 | SCM430 | 708A25/ 708M25 | 30CrMo |
4140 | 4140 | 1.7225 /42CrMo4 | SCM440 | EN19/ 709M40 | 42CrMo |
4340 | 4340 | 1.6582/ 34CrNiMo6 | SNCM 439/ SNCM8 | EN24/ 817M40 | 40CrNi2Mo |
8620 | 8620 | 1.6523/ 21NiCrMo2 | SNCM220 | 805M20 | 20CrNiMo |
CARBON STEEL | |||||
20 | 1020 | C22. CK22 | S20C | EN3B /070M20 | 20 |
35 | 1035 | C35.CK35 | S35C | 35 | |
45 | 1045 | C45.CK45 | S45C | EN8D/C45E | 45 |
50 | 1050 | CK53 | S50C | EN9/070M55 | 50 |
Q355 | S355J /ST52 | EN14 | Q355 | ||
30Mn | 1030.1033 | S30C | 30Mn | ||
30Mn2 | 1330 | 30Mn5 | SMn433h | 30Mn2 | |
STAINLESS STEEL | |||||
steel grades: 304, 304L, 316, 316L, 321, 410 430, 431, 2205, 2304, 2507. F53, F55 |
























