Metal Processing Service

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DIN 1.2345 Die Steel , Hot Work Tool Steel Flat Bars

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Steel Grade: | 1.2345 | Application: | Tool Steel, Die Steel |
Shape: | Flat bar | Standard: | AISI, DIN, JIS, GB |
Dimension: | 6-600 mm x 60-1500 mm | Surface: | Black, Machined |
Technique: | Hot rolled, Forged | Ultrasonic Test: | 100% UT Passed |
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Description:

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◆ Equivalence

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AISI / SAE | DIN / W.Nr | JIS | GB |
H11 | 1.2345 | ---- | 4Cr5MoSiV1 |
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◆ Chemical Composition (%)

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C | Si | Mn | P | S | Cr | Mo | V |
0.48 0.53 | 0.80 1.10 | 0.20 0.40 | ≤ 0.030 | ≤ 0.020 | 4.80 5.20 | 1.25 1.45 | 0.80 1.00 |
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◆?Dimensions

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? | Hot Rolled | Forged |
Thickness (mm) | 6-120 | 100-600 |
Width (mm) | 100-810 | 60-1500 |
Length (mm) | 2000-5800 | 2000-5800 |
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◆ Delivery Condition

EAF+(ESR) or EAF+LF+VD+(ESR), Hot rolled or Forged, Annealed, Hardness≤229HB,

Black surface or Machined surface, UT 100% Passed

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◆ Characteristics

1. Hot work tool steel designed particularly for applications requiring extreme toughness ? ? ?

? ? combined with good red hardness. It provides an extra margin of safest in tools subject

? ? to heavy hammer blows, and those tools containing deep recesses or sharp corners.

2. It is also used in many cold work applications where extra toughness is required at the

? ? sacrifice of some wear resistance.

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◆ Applications

Tools requiring resistance to softening at elevated temperatures. Such tools include forging dies and punches, die-casting dies, aluminum extrusion dies, hot heading dies, piercing and forming punches, etc.?

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◆ Heat Treatment

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Annealing |
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750 to 800°C (1382 to 1472°F)

Slow controlled cooling in furnace at a rate of 10 to 20°C/hr (50 to 68°F/hr) down to approx. 600°C (1112°F), further cooling in air.

Hardness after annealing: max. 235 HB.

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Stress relieving |
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Approx. 650°C (1202°F)

Slow cooling in furnace; intended to relieve stresses set up by extensive machining, or in complex shapes.

After through heating, hold in neutral atmosphere for 1 - 2 hours.

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Hardening |
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1050 to 1100°C

Oil, salt bath (500 -?550°C), air

Holding time after temperature equalization: 15 to 30 minutes.

Obtainable hardness:

57 - 59 HRC oil or salt bath hardening,

54 - 57 HRC air hardening.

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Tempering |
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Slow heating to tempering temperature immediately after hardening/time in furnace: 1hour for every 20 mm of work piece thickness, but not less than 2 hours/ air cooling (minimum holding time: 1 hour).

1st tempering and 2nd tempering to desired working hardness.

Average obtainable hardness values are shown in the tempering chart.

3rd tempering for stress relieving, 30 - 50°C be low highest tempering temperature.

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What we can offer?

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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.

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-- 50,000 tons Stock

-- 7 warehouses and branches

-- 47 sets of vertical band saws

-- 100 sets of modern facilities

-- A group of QC technicians

-- Professional technical consulting

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Shape Available

◆?Solid round bar

◆?Flat bar

◆?Square bar

◆?Hexagon bar

◆?Block

◆?Plate

◆?Sheet

◆?Wire rod

◆?Strip

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　 | 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 | 　 |
Structural Steel | A283 | S235JR / ST37-2 / 1.0037 | —— | 　 | Building?Structures, Oil & Gas Platforms, Palm Oil?Euipments, Dump Trucks, Transmission Towers ? etc..
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A570 | S235JRG2 / RSt37-2 / 1.0038 | —— | 　 |
A573 | S235J2G3 / ST37-3 / 1.0116 | —— | 　 |
1020 | S275JR / ST44-2 / 1.0044 | STK400 | 　 |
A501 | S275J2G3 / ST44-3 / 1.0144 | STK400 | 　 |
—— | S355JR / 1.0045 | SN400B;C | 　 |
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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Note:

1). √ means we have stock

2).?Available Size:

Round: Dia. 5.5-1500 mm

Flat: T. 6-120 mm x W. 60-810 mm

Block: T. 120-1200mm x W. 300-1800mm

Plate: T. 10-460mm x W. 1500-2300mm

3).?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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