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Your Position:Home > Product > Engineering Steel

4340/1.6582/34CrNiMo6/EN24

Update:2018/7/22 19:48:47      View:3580
  • Type:   AISI 4340(SAE 4340), DIN 1.6582/34CrNiMo6, EN24
  • Description:

    AISI 4340(SAE 4340), DIN 1.6582/34CrNiMo6, EN24

Introduction
34CrNiMo6 / 1.6582 / 4340 / SNCM439
 
Equivalence

AISI / SAE

DIN / W.Nr

JIS

GB

4340

34CrNiMo6
1.6582

SNCM439

40CrNiMoA

 
Chemical Composition (%)

Steel Grade

C

Si

Mn

P

S

Cr

Mo

Ni

34CrNiMo6
1.6582

0.30
0.38

≤
0.40

0.50
0.80

≤
0.035

≤
0.035

1.30
1.70

0.15
0.30

1.30
1.70

4340

0.38
0.43

0.15
0.35

0.60
0.80

≤
0.035

≤
0.040

0.70
0.90

0.20
0.30

1.65
2.00

SNCM439

0.36
0.43

0.15
0.35

0.60
0.90

≤
0.030

≤
0.030

0.60
1.00

0.15
0.30

1.60
2.00

 
Dimensions

 

Hot Rolled

Forged

Cold Drawn

Diameter (mm)

10-260

150-1500

2.5-70

Length (mm)

4000-10000

3000-10000

4000-10000

 
Delivery Condition
EAF+LF+VD, Hot rolled, Forged or Cold drawn, Black surface or Machined surface (Peeled, Turned, Grinded), Annealed or Q+T, UT 100% Passed
 
Characteristics
It is a low-alloy steel containing chromium and molybdenum and nickel as strengthening agents. The steel has good strength and toughness, hardenability and overheat resistance stability, also high susceptibility of flake formation and temper brittleness. Its poor weldability requires high temperature preheating and stress relieving, before and after process. It should be Hardened and tempered before application.
 
Applications
This low-alloy steel finds many applications where high strength, plasticity required such as large and important parts requiring hardening and tempering as heavy load axle for heavy machinery, axle with diameter over 250mm for steam turbine, axle of rotor wing for helicopter, axle of turbo and turbine blade and heavy load transmission part for jet engine, fasteners and gear for crank axle. It’s also used for rotor spindle and blade where temperature over 400℃. It can be used as important part with special properties after nitriding and ultrahigh strength steel after low tempering isothermal quenching.

Steel Grades We Can offer


AISI

DIN

JIS

Stock

Application

Hot Work Tool Steel

H11

1.2343

SKD6

√

Die Casting Dies,Extrusion Dies, Hammer Dies,
Ram Dies,
Forging Dies
etc.

H13

1.2344

SKD61

√

H10

1.2365

SKD7

 

——

1.2367

——

 

L6

1.2714 / 1.2713

SKT4

√

H12

1.2606

SKD62

 

H21

1.2581

SKD5

√

Cold Work Tool Steel

D3

1.2080

SKD1

√

Cutting Tools, Punching Tools, Shear Bladers, Reamers, Thread Rolling Dies, Calipers, Sockets etc.

——

1.2601

~SKD11

√

D2

1.2379

~SKD11

√

——

1.2379 MOD

DC53 (Daido)

√

D6

1.2436

——

 

O1

1.2510

SKS3

√

O2

1.2842

——

 

A2

1.2363

SKD12

 

S1

1.2550

——

 

S7

1.2357

——

 

——

1.2767

SKT6

 

L2

1.2210

——

 

Plastic
Mould Steel

P20

1.2311

——

√

      Mold Base,           Core & Cavity,         Bumper Mold             etc.         

P20+Ni

1.2738

——

√

P20+S

1.2312

——

√

——

1.2316

——

 

420

1.2083

SUS420J2

√

——

——

NAK80 (Daido)

√

Alloy Steel

4120

25CrMo4 / 1.7218

SCM420

 

Shafts, Gears, Drillers, Chains, Bolts, Nuts, Pins, Suds, Keys, Bites, Crankshafts, Connecting Rods, Came, Couplings  etc.

4135

34CrMo4 / 1.7220

SCM435

 

4130

34CrMo4 / 1.7220

SCM430

√

4140

   42CrMo4 /        42CrMoS4 /                1.7225             

SCM440

√

4142

41CrMo4 / 1.7223

SCM440

 

4145H

——

——

 

4330V

——

——

 

4340

34CrNiMo6 / 1.6582

SNCM439

 

5115

16MnCr5 / 16MnCrS5 / 1.7131

 

 

5120

20MnCr5 / 20MnCrS5 / 1.7147

SMnC420H

 

5140

41Cr4 / 41CrS4 / 1.7035

SCr440

√

8620

21NiCrMo2 / 1.6523

SNCM220

 

8640

40NiCrMo2-2 / 1.6546

SNCM240

 

——

18CrNiMo7-6 / 17CrNiMo6 / 1.6587

——

 

9840

36CrNiMo4 / 1.6511

——

 

E71400

41CrAlMo7-10 / 1.8509

SACM1

 

——

34CrAlNi7 / 1.8550

——

 

Bearing Steel

E52100

100Cr6 / 1.3505

SUJ2

√

Bearing, Shafts
etc.

——

100CrMn6 / 1.3520

——

 

——

100CrMo7-3 / 1.3536

——

 

Spring Steel

5155

55Cr3 / 1.7176

SUP9

 

Springs

6150

51CrV4 / 1.8159

SUP10

 

9261

60CrSi7 / 1.7108

——

 

Carbon Steel

1010

CK10 / C10E / 1.1121

S10C

 

Shafts, Chains, Bolts, Nuts, Pins, Suds, Keys, Bites, Came, Couplings  etc.

1020

C22 / 1.0402

S20C

√

1040

CK40 / C40E / 1.1186

S40C

√

1045

CK45 / C45E / 1.1191

S45C

√

1050

CK50 / C50E / 1.1206

S50C

√

1055

CK55 / C55E / 1.1203

S55C

 

1064

CK60 / C60E / 1.1221

S58C

 

High Speed Tool Steel

M2

1.3343

SKH51

√

Reamer,
      End-mill,         
Hob, Cutter, Bite, Drill, Punch, Tap, Brooch
etc.

M7

1.3348

——

 

M42

1.3247

SKH59

√

M35

1.3243

SKH55

√

T1

1.3355

SKH2

 

T15

1.3202

——

 

T42

1.3207

SKH57

 

 


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