| Customization: | Available |
|---|---|
| Type: | Steel Plate |
| Standard: | ASTM, AISI, GB, DIN |
|
Still deciding? Get samples of US$ 20/Piece
Request Sample
|
Suppliers with verified business licenses
Audited Supplier Audited by an independent third-party inspection agency
|
AISI |
Brand Name |
DIN |
EN |
JIS |
Ravne No. |
BS |
|
H12 |
UTOP3 |
X30WCrV93 |
/ |
/ |
856 |
/ |
Chemical Composition (in weight %)
| C | Si | Mn | Cr | Mo | Ni | V | W | Others |
| 0.37 | 1.05 | 0.45 | 5.30 | 1.45 | - | 0.28 | 1.30 | - |
Description
H12 hot work tool steel is a 5% chromium, general-purpose hot work steel that is characterized by excellent impact toughness. It contains less vanadium than the widely-used H13 hor work tool steel. Steel is a deep-hardening, air-hardening steel that exhibits minimal size change during heat treatmnet. It has good resistance to thermal fatique cracking (heat cracking) and excellent resistnce to gross cracking and thermal shock when water cooled in service.
Applications
H12 hot work steel is recommended for hot tooling aplications where maximum resistance to cracking is required. Such applications include hot puches, die casting dies, forgins diw, hot shear baldes, and extrusion tooling.
Physical properties (avarage values) at ambient temperature
Modulus of elasticity [103 x N/mm2]: 207
Density [g/cm3]: 7.84
Thermal conductivity [W/m.K]: 18.9
Coefficient of Linear Thermal Expansion 10-6 oC-1
| 20-100oC | 20-200oC | 20-400oC | 20-600oC |
| 9.8 | 11.0 | 12.1 | 13.0 |
Soft Annealing
Heat to 820-840oC, cool slowly in furnace. Time is 4-6 hours. This will produce a maximum Brinell hardness of 220.
Stress Relieving
Stress relieving to remove machining stresses should be carried out by heating to approx.650oC, holding for 1-2 hours at heat, followed by air cooling. This operation is performed to reduce distortion during heat treatment.
Hardening
Harden from a temperature of 1000-1050oC followed by oil, air quenching or warm bath quenching approx. 540oC. Hardness after quenching is 54 HRC.
Tempering
Tempering temperature: 520-700oC, at least 2-3x.
Tempering Diagram
Click the image to enlarge the diagram.
Forging
Hot forming temperature: 1100-850oC.
Machinability
75-80% of a 1% carbon steel.
Corrosion Resistance
Corrosion resistance of this alloy is better than that of plain carbon steels. However it will rust unless given protective treatment.
Forms manufactured: Please see the Dimensional Sales Program.
Disclaimer
The information and data presented herein are typical or average values and are not a guarantee of maximum or minimum values. Applications specifically suggested for material described herein are made solely for the purpose of illustration to enable the reader to make his own evaluation and are not intended as warranties, either express or implied, of fitness for these or other puposes. There is no representation that the recipient of this literature will receive updated editions as the become available.
Delivery Condition
EAF+LF+VD+(ESR), Hot rolled or Forged, Annealed, EFS, Hardness≤235HB, Un-machined or
Machined surface (Peeled, Turned, Milled, Grinded), UT 100% Passed
Characteristics
Hot work tool steel featuring a fine combination of heat checking resistance, hot strength and impact strength; admits water cooling.
Applications
1. Highly stressed hot work tools, mainly for the processing of heavy alloys, such as mandrels, dies
and containers for metal tube and rod extrusion; hot extrusion tools;
2. Tools for the manufacture of hollows, screws, rivets, nuts and bolts.
3. Die casting tools, forming dies, die inserts, hot shear blades.
Heat Treatment
Annealing
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.
Stress relieving
600 to 650°C (1112 to 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.
Hardening
1010 to 1050°C (1850 to 1922°F)
Oil, salt bath (500 - 550°C / 932-1022°F), air
Holding time after temperature equalization: 15 to 30 minutes.
Obtainable hardness: 52 - 56 HRC
Tempering
Slow heating to tempering temperature immediately after hardening / time in furnace 1 hour for each 20 mm of work piece thickness, but at least 2 hours / cooling in air. It is recommended to temper at least twice. A third tempering cycle for the purpose of stress relieving may be advantageous.
1st tempering approx. 30°C (86°F) above maximum secondary hardness.
2nd tempering to desired working hardness. The tempering chart shows average tempered hardness values.
3rd for stress relieving at a temperature 30 - 50°C (86 to 122°F) be low highest tempering temperature.
What we can offer
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, |
|
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 |
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 |
|
-- |
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, |
|
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
Packing & Shipping
Hot keywords:high quality
){kind=link}