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M42 High speed tool steel bar
M42 High speed tool steel bar is mainly used in manufacturing aerospace iron base,nikel base,Ti-base superalloy and many other difficult-to-machine material cutting tools, such as broach,hob,slotting cutter and band saw blades teeth.
Product Basic Information:
High Speed Steel M42 Chemical Composition (%)
|
Grade |
C |
Si |
Mn |
Co |
P |
S |
Cr |
Mo |
W |
V |
|
M42 |
1.00~1.15 |
≤0.65 |
≤0.40 |
7.50~8.50 |
≤0.030 |
≤0.030 |
3.50~4.50 |
9.00~10.00 |
1.15~1.85 |
0.95~1.35 |
High Speed Steel M42 Description
|
Material |
W2Mo2Cr4VCo8 / M42 / 1.3247 / SKH59 |
|
Size |
1.5mm-200mm |
|
Length |
2.5m-6.0m |
|
Surface |
bright or black |
|
Condition Of Delivery |
Annealing/ heat-treatment |
|
Processing |
hot rolled, cold drawn or forged |
|
Smelting method |
ESR |
|
HB |
≤ 255 |
|
HRC |
66-68 |
|
Tempering Temperature |
540~560℃ |
|
Quenching Temperature & Cooling Method |
Salt Bath 1170~1190℃ Air Coolin *-g |
High Speed Steel M42 Physical Property
|
Temperature ℃ |
Density g/cm3 |
Modulus of elasticity KN/mm2 |
Coefficient of thermal expansion |
Heat transfer coefficient W/m℃ |
Specific heat J/Kg℃ |
|
20 |
8.18 |
230 |
22 |
395 |
|
|
400 |
8.10 |
215 |
1.18 x 10-6 |
27 |
485 |
|
600 |
8.03 |
201 |
1.95 x 10-6 |
25 |
525 |
High Speed Steel M42 Heat treated alloy phase and property
|
Ingot Annealing State |
Quenching State |
Tempering |
Quenching State And Performance |
||||||||
|
Alloy Phase |
Temperature |
Residual Carbide% |
Retained Austenite% |
Quenched martensite |
Temperature |
Martensite |
Rockwell hardness |
Bending strength |
Impact toughness |
Compressive strength |
|
|
Name |
Occupancy Rate % |
||||||||||
|
M2C |
27~31 |
1170~1190 |
9~13 |
29~32 |
Bal |
540~ 560 |
87~91 |
66~68 |
2800~3600 |
28~35 |
3580~4150 |
|
M6C |
|||||||||||
|
MC |
|||||||||||
|
M23C6 |
|||||||||||
|
M7C3 |
|||||||||||
|
F |
69~73 |
||||||||||
High Speed Steel M42 High temperature hardness
|
Quench:1180℃ Tempering:540℃ |
|||||||
|
Room temperature |
300℃ |
400℃ |
500℃ |
550℃ |
600℃ |
650℃ |
700℃ |
|
920 67.5HRC |
900 67.0HRC |
885 66.0HRC |
830 65.0HRC |
780 63.3HRC |
750 62.0HRC |
700 60.1HRC |
640 58.0HRC |
Grinding
High Speed Steel M42 Product specification and standard
|
Forging |
Hot-rolling |
Cold drawing |
Tolerance |
|
Round bar:φ56mm~φ300mm Plate:20mm~250mm x 100mm~500mm x L |
Round bar:φ14mm~φ55mm Strip:1.5mm~4mm x 27mm~260mm |
Round bar:φ1.5mm~φ14mm Strip:1.5mm~4mm x 27~260mm Wire:φ1.0mm~φ14.0mm |
Polished: (h9) Peeled: (k12) |
Packing & Delivery
Standard seaworthy package:
1)Paint oil on the surface to protect the steel flat bars from rusting
2)Bundle packing by iron strips.
3)Bundle weight is from 2Mt to 3Mt
4)Two or three tags will be attached on each bundle.In general,at one end of each other.
5)According to the customer's demand.
FAQ
1.Why do you choose us?
We have excellent quality, competitive price and the best service.
Free samples, real-time production process, guaranteed delivery time, trade assurance service.
2.Why can you rely on us for quality product?
Advanced equipment, professional staff, and strict technique supervision.
We have passed the certificate of ISO 9001 system.
3.How about the price?
Working with us, you can lower your cost and beat your competitors.
Quanlity and special discount.
4.What about the delivery time?
Usually, the products will be delivered in about 45 days after received the deposit. For products on stock, they will be delivered in about 10 days after received the payment.
5.How about the payment?
We accept various methods of payment: T/T, L/C, Trade Assurance, West Union, MoneyGram, Paypal, Credit Card, Cash, D/A, D/P.
Our Service
Our High Speed Tool Steel AISI M42 Round Bar is based on customer needs and are highly valued by both domestic and international customers with unique advantages. We are earning wonderful attempts to realize this win-win predicament and sincerely welcome you to be a part of us. We adhere to the concept of 'quality first, reasonable price, and service first', provide customers with continuously upgraded products and maximize profit margins for them so as to seek win-win suituation.