Type: | Alloy Steel |
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Standard: | AISI, ASTM, DIN, JIS, GB, BS |
Composition: | 1.3355, Skh2, W18cr4V, T1 |
Technique: | Forged/Hot Rolled/Cold Drawn |
Shape: | Flat Bars/Plates/Blocks/Round Bars |
Surface Treatment: | Black/Milled/Machined |
Samples: |
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Customization: |
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T1 tool steel is one of the original tungsten high speed steels, although all tungsten steel grades are used to a limited extent because of the cost and questionable availability of tungsten. Of the T group steels, the general purpose T1 tool steels and the high-vanadium-cobalt T15 are most commonly used.
2. T1 Steel equivalent
Country | USA | German | Japan |
Standard | ASTM A600 | DIN EN ISO 4957 | JIS G4403 |
Grade | T1 | 1.3355/HS18-0-1 | SKH2 |
3. T1 steel chemical composition
Grade | C | Si | Mn | P | S | Cr | Mo | V | W | Co |
T1 | 0.62-0.8 | 0.2-0.4 | 0.1-0.4 | 0.03 | 0.03 | 3.75-4.5 | / | 0.9-1.3 | 17.25-18.75 | / |
1.3355 | 0.73-0.85 | 0.65 | 0.4 | 0.03 | 0.03 | 3.6-4.5 | / | 1.0-1.2 | 17.2-18.7 | / |
SKH2 | 0.73-0.83 | 0.45 | 0.4 | 0.03 | 0.03 | 3.8-4.5 | / | 1.0-1.2 | 17.2-18.7 | / |
4. T1 steel mechanical properties
The mechanical properties mainly include tensile strength, yield strength, elongation, area or reduction, hardness, impact value, non-metalic inclusion etc. Different heat treatment, the mechanical properties will be different, such as normalized, tempered, QT. If you want to know the properties, kindly contact the salesman.
5. T1 steel overviews
Size | Round | Dia 2-300mm |
Plate/Flat/Block | Thickness 2mm-20mm |
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Width 10mm-100mm |
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Heat treatment | Normalized ; Annealed ; Quenched ; Tempered | |
Surface condition | Black; Peeled; Polished; Machined; Grinded; Turned; Milled | |
Delivery condition | Forged; Hot rolled; Cold drawn | |
Test | Tensile strength, Yield strength, elongation, area of reduction, impact value, hardness, grain size, ultrasonic test, US inspection, magnetic particle testing, etc. | |
Payment terms | T/T;L/C;/Money gram/ Paypal | |
Trade terms | FOB; CIF; C&F; etc.. | |
Delivery time | 30-45 days | |
Application | T1 are used for Broaches, Drills, Hobs, Knurling Tools, Lathe Tools, Milling Cutters, Nut Piercers, Planer Tools, Reamers, Shaving Tools, Taps, Thread Cutting Tools. |
6. T1 Steel Heat Treatment and Properties
Treatment | Temperature Range | Cooling/Quenching | Notes |
Forging | 1700-2100° F | Slow. | Cool slowly in dry sand or in other insulating media. |
Annealing | 1600-1650° F | Cool slowly at a rate of 35° F per hour to 1000° F. | For best results, insulating media is desirable. Hold at temperature for 2 hours. |
Stress Relieving | 1100-1300° F | Cool slowly | Stress relieve after rough machining |
Preheating | 1500-1550° F | Preheat time in furnace is ¾ Hr. per inch of thickness. Heating up to temperature as slow as possible. | |
Hardening | 2325-2375° F (furnace) | Quench in air or warm oil. To minimize quenching strains, quench in salt at 1000° F | For maximum wear resistance, harden at 2375° F. For maximum toughness and high hardness, harden at 2275° F. |
2275-2350° F (salt bath) | |||
Tempering | 1022 ° F-1058 ° F | Temper T1 high-speed steel immediately after quenching. Hold for at least two hours | Double tempering is recommended. The usual tempering time is 2+2 hours. Recommended temperature is 1000-1075° F for cutting tools. 1100-1200° F for shock tools |
7. Delivery condition
For hot rolled bar, usually the delivery condition is hot rolled, annealed, Black surface.
For cold drawn plate, usually the delivery condition is cold drawn, annealed, milled surface
For hot rolled plate, usually the delivery condition is hot rolled, annealed, black surface.
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 |
|
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4145H |
-- |
-- |
|
||
4330V |
-- |
-- |
|
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4340 |
34CrNiMo6 / 1.6582 |
SNCM439 |
|
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5115 |
16MnCr5 / 16MnCrS5 / 1.7131 |
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5120 |
20MnCr5 / 20MnCrS5 / 1.7147 |
SMnC420H |
|
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5140 |
41Cr4 / 41CrS4 / 1.7035 |
SCr440 |
√ |
||
8620 |
21NiCrMo2 / 1.6523 |
SNCM220 |
|
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8640 |
40NiCrMo2-2 / 1.6546 |
SNCM240 |
|
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-- |
18CrNiMo7-6 / 17CrNiMo6 / 1.6587 |
-- |
|
||
9840 |
36CrNiMo4 / 1.6511 |
-- |
|
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E71400 |
41CrAlMo7-10 / 1.8509 |
SACM1 |
|
||
-- |
34CrAlNi7 / 1.8550 |
-- |
|
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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 |
|
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9261 |
60CrSi7 / 1.7108 |
-- |
|
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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 |
|
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1064 |
CK60 / C60E / 1.1221 |
S58C |
|
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High Speed Tool Steel |
M2 |
1.3343 |
SKH51 |
√ |
Reamer, |
M7 |
1.3348 |
-- |
|
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M42 |
1.3247 |
SKH59 |
√ |
||
M35 |
1.3243 |
SKH55 |
√ |
||
T1 |
1.3355 |
SKH2 |
|
||
T15 |
1.3202 |
-- |
|
||
T42 |
1.3207 |
SKH57 |
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