Alloy Steel with 1.2358 Flat DIN Special Steel Excellent Hardenability Tool Steel Plate Block Round Bar

Discover our high-quality Alloy Steel with 1.2358 Flat DIN Special Steel Tool Steel Plate Block Round Bar. As a factory, we provide top-notch products with excellent hardenability. Shop now!
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PRODUCTS DETAILS

Product Description

Alloy Steel with 1.2358 Flat DIN Special Steel Excellent Hardenability Tool Steel Plate Block Round Bar

 

Chemical Composition (%)

CSlMnPSCrMoV
0.550.200.704.200.300.15
0.650.400.900.0300.0304.800.700.25



Dimensions

ShapeThick(mm)Width(mm)
Flat6-20020-1000



Delivery Condition
EAF+LF+VD+(ESR), Hot rolled or Forged, Unmachined or Machined surface, UT 100% Passed
We offer Annealed and Q+T condition.
Annealed: Hardness≤240HB
Q+T: Hardness 30-34 HRC



Characteristics
It is a kind of medium alloyed cold work tool steel that is usually supplied quenched and tempered, high
hardening capacity, through hardenability and toughness, good weldability, excellent surface hardenability.



Applications
For making cutting inserts for segmented tool, punching tools, shear knives, plastic moulds, cutting tools.



Heat Treatment
Annealing
820 to 860°C
Slow controlled cooling in furnace at a rate of 10 to 20°C/hr down to approx. 600°C, further cooling in air.
Hardness after annealing: max. 240 HB.

Stress relieving
600 to 650°C
Slow cooling in furnace; intended to relieve stresses set up by extensive machining, or incomplex shapes.
After through heating, hold in neutral atmosphere for 1 to 2 hours.

Hardening
950 to 980°C
Complex shapes/air, simple shapes/air blast, oil, salt bath from (220 to 250°C or 500 to 550°C). Holding time
after temperature equalization: 15 to 30 minutes.
Obtainable hardness: 63 - 65 HRC.

Tempering
Slow heating to tempering temperature immediately after hardening/time in furnace
1hour for each 20 mm of work piece thickness, but at least 2 hours/cooling in air.

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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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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