T5 Tool Steel/Skh4/2756/W18cr4V2co8/ HS 18-1-2/1.3265 HSS High Speed Tool Steel Forged and Rolled
High Speed Steel Round Bar and Plate
High speed tool steel comprises a set of tool steel alloys named for their capacity to cut materials faster than traditional high-carbon steels previously used in cutting tools.
*High alloy content, primarily tungsten or molybdenum, with lesser amounts of chromium, vanadium and cobalt;
*High carbon content-a minimum of 0.65% by weight, but commonly anywhere from 0.8% to 1.5% carbon content;
*Rockwell hardness of at least 64 HRC at room temperature;
*A heat treatment process that produces a high quantity of complex metallic carbides-chiefly tungsten, molybdenum and vanadium carbides-suspended in a steel substrate, which results in hardness and wear resistance.
| ASTM | DIN | JIS | C | Si | Mn | P | S | Cr | Mo | V | W | Co |
| M2 | 1.3343 | SKH51 | 0.78~0.88 | 0.20~0.45 | 0.15~0.40 | 0.030 Max | 0.030 Max | 3.75~4.50 | 4.50~5.50 | 1.75~2.20 | 5.50~6.75 | - |
| M35 | 1.3243 | SKH55 | 0.82~0.95 | 0.2~0.45 | 0.15~0.4 | 0.030 Max | 0.030 Max | 3.8~4.5 | 4.75~5.25 | 1.75~2.15 | 5.5~6.5 | 4.6~5 |
| M42 | 1.3247 | SKH59 | 1.05~1.15 | 0.15~0.65 | 0.15~0.4 | 0.030 Max | 0.030 Max | 3.5~4.25 | 9~10 | 0.95~1.35 | 1.15~1.85 | 7.75~8.75 |
| M50 | 1.3325 | 0.78~0.88 | 0.20~0.60 | 0.15~0.45 | 0.030 max | 0.030 max | 3.75~4.50 | 3.90~4.75 | 0.80~1.25 | - | - | |
| T1 | 1.3355 | SKH2 | 0.62~0.8 | 0.2~0.40 | 0.1~0.40 | 0.030 Max | 0.030 Max | 3.75~4.5 | - | 0.9~1.3 | 17.25~18.75 | - |
| T15 | 1.3202 | SKH10 | 1.30~1.45 | 0.030 Max | 0.031 Max | 3.8~4.5 | 0.7~1.0 | 3.5~4.0 | 11.5~12.5 | 4.5~5.0 | ||
| T4 | 1.3255 | SKH3 | 0.7~0.8 | 0.1~0.4 | 0.1~0.40 | 0.030 Max | 0.030 Max | 3.75~4.5 | 0.4~1 | 0.8~1.2 | 17.5~19 | 4.25~5.75 |
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 |
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