Alloy Steel with 42CrMo Free Cutting 42CrMo4 4140 Flat Block Round Bar Plastic Mold Steel Plate Metal Sheet Pipe

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PRODUCTS DETAILS

Basic Info.

Model NO.
42CrMo
Special Use
High-strength Steel Plate, Wear Resistant Steel, Silicon Steel, Cold Heading Steel, Free Cutting Steel, Mold Steel
Application
Tool Steel Bar
Transport Package
Nude Packing
Specification
check detailed description
Trademark
Ningbo Ningshing
Origin
China

Product Description

Free Cutting 42CrMo4/ 42CrMo/ 4140/ Flat Bar/Steel Block/Round Bar Plastic Mold Steel

4140 Steel Block and Flat, A or Q+T


Equivalence

AISI/SAE DIN/W.Nr JIS GB
4140 42CrMo4 SCM440 42CrMo
42CrMoS4
1.7225



Chemical Composition (%)

Steel Grade C Si Mn P S Cr Mo
42CrMo4 1.7225 0.38 0.60 0.90 0.15
0.45 0.40 0.90 0.035 0.035 1.20 0.30
42CrMoS4 0.38 0.60 0.020 0.90 0.15
0.45 0.40 0.90 0.035 0.040 1.20 0.30
4140 0.38 0.15 0.75 0.80 0.15
0.43 0.35 1.00 0.035 0.040 1.10 0.25
SCM440 0.38 0.15 0.60 0.90 0.15
0.43 0.35 0.85 0.035 0.040 1.20 0.30
42CrMo 0.38 0.17 0.50 0.90 0.15
0.45 0.37 0.80 0.035 0.035 1.20 0.25



Dimensions

      Hot Rolled Forged Cold Drawn
Diameter(mm) 10-260 150-1500 2.5-70
Length(mm) 4000-10000 3000-10000 4000-10000



Forging Technique

Heat Temperature Start Forging Temperature Finish Forging Temperature Cooling Method
1150-1200ºC 1130-1180ºC ≥850ºC Slow Cooling for Φ>50mm

 


Delivery Condition
EAF+LF+VD, Hot Rolled, Forged and Cold Drawn, Black surface or Machined (Peeled, Turned, Grinded),
Untreated or Annealed or Q+T, UT 100% Passed


Characteristics
1. Ultrahigh strength steel with high intensity and toughness.
2. Good harden ability, High fatigue limit and capability of impact resistance after Q+T.
3. No obvious temper brittleness.


Applications

1. For making crucial mechanical parts with high intensity and large sections, such as shaft, gear and connecting rod.
2. For making large and medium size of plastic mold.


What we can offer?
We offer a wide range of steel products in a wide variety of dimensions and executions, acc.to the common international specifications or customerized.
Machining and heat treatment are available.
Also, we advise you in choosing the right materials.


Shape Available

Solid round bar
Flat bar
Square bar
Hexagon bar
Block
Plate
Sheet
Wire rod
Strip

 

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

 

Note:
1). √ means we have stoc
2). Delivery Condition:
Smelting: EAF+LF+VD (+ESR)
Making: Hot rolled, Cold rolled, Forged, Cold Drawn
Heat Treatment: Untreated, Annealing, N+T, Q+T
Surface: Black, Peeled, Turned, Milled, Grinded, Polished

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Alloy Steel with 42CrMo Free Cutting 42CrMo4 4140 Flat Block Round Bar Plastic Mold Steel Plate Metal Sheet Pipe Alloy Steel with 42CrMo Free Cutting 42CrMo4 4140 Flat Block Round Bar Plastic Mold Steel Plate Metal Sheet Pipe
Q1: What is Ningbo Ningshing Precision Machinery Group Co., Ltd ?
A1: Ningbo Ningshing Precision Machinery Group Co., Ltd., formerly known as Ningbo Ningshing Special-Steel Group Co., Ltd., is the leading distributor of Special Steel, and also a professional mold base maker in China. Our business involves special steel trading, machining processing, mold base making, heat treatment, CNC machines manufacturing.


Q2: Are you a manufacturer or a trader? 
A2: For Special Steel, we are the one of the leading distributors and service center in China. 9 warehouses with over 50,000 tons of regular stock. Our workshop has various kinds of equipments for sawing, milling, grinding, drilling etc.
For mold base, we are a professional manufacturer, with 24 sets of CNC machines, 3 axis and 5 axis, CMM for inspection. We produce medium-large sized mold base for plastic injection mold and die casting die.


Q3: How do you control the quality of steels?
A3: Firstly, we have very close and deep relationship with Chinese Prime Mills, choose supplier carefully, and regard them as the long term business partner. Based on the long term cooperation, we concentrate on special steel business and expand the market step by step. Secondly, we have own technical center which is formed by the experienced engineers and technicians whom ever worked for prime mills. We control the quality in production process, in-out warehouse.


Q4:: Which kind of processing can you do?

A4: We do machining processing like cutting, milling, grinding, turning, peeling, drilling, CNC machining. Meanwhile, we do vacuum heat treatment for die and mold.

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