High speed steel
Company “Atomtehnology” LTD produces heat-resistant steel, bar, plate P18, P6M5, P9. Heat-resistant steel with high hardness, called high speed steel, fast-cutting or quick-cutting – a group of high-alloy tool steels, which due to composition and special production mode of heat treatment on the secondary hardness have a very high hardness and red hardness up to 550 – 600 ° C. They combine heat resistance (600-700 ˚ C) with high hardness (HRC 63-70) and increased resistance of plastic deformation. As a result high-speed steels was possible to increase cutting speed up to 2-4 times (and the newer steels with intermetallic hardening even at 5-6 times) and increase the resistance of tools in 10-40 times or more compared with the obtained for tool steels of not heat-resistant steel. These advantages are manifested in cutting: with increased rate, while heating the cutting edge, or at a lower speed but with high pressure. To understand the properties and characteristics of their use, it is important that the reduction of hardness HRC 2-4 compared with the maximum obtained may accompanied by deterioration in viscosity, strength and durability. Therefore, high-speed steel should be used condition of high hardness and without work with large dynamic loads.
Heat resistance of fast-cutting created with special alloying and quenching with a very high temperature: 1200-1300 ˚ C. The main alloying elements are tungsten or tungsten with molybdenum. Numerous ofhigh-speed steels it is advisable to distinguish between the main condition: moderate, high, high heat resistance. They began to moderate and high heat resistance have a relatively high carbon content (≥ 0,6-0,7%) and the identic hardening, a secondary hardness creates by release of carbides during tempering.
Fast cutting steels of moderate heat resistance keeps hardness HRC 60 after heating (4 hour) to 615-620 ˚ C. They are suitable for cutting steels and cast iron with a hardness of HB 250-280, so the most construction materials, and used most widely (78-80% of the total production of high speed steels). Typical representatives of this group of steel are R18 and are more efficient alloy: tungsten (steel P12) and tungsten-molybdenum (steel R6M5).
Steel with increased heat resistance are high in carbon, or their alloyed with cobalt addition. They retain the hardness of HRC 60 after heating 630-650 ˚ C. The resistance of tools when used properly of these steels in 1.5-4 times higher than that of a moderate heat resistance of steels.
Steel of high heat resistance retains hardness HRC 60 after heating 700-730 ˚ C. The nature of their work-hardening is fundamentally different – due to separation of intermetallic compounds. These are at the correct destination, such as cutting many hard materials, provide increased stability in the 10-15 times.
Chemical composition of high speed steels (GOST 19265-73)
|
Steel grade |
C |
Cr |
W |
V |
Co |
Mo не более |
|
Р18 |
0,70-0,80 |
3,8-4,4 |
17,5-4,4 |
1,0-1,4 |
– |
0,3 |
|
Р12 |
0,80-0,90 |
3,1-3,6 |
12,0-13,0 |
1,5-1,9 |
– |
0,3 |
|
Р9 |
0,85-0,95 |
3,8-4,4 |
8,5-10,0 |
2,0-2,6 |
– |
0,3 |
|
Р6М3 |
0,85-0,95 |
3,0-3,6 |
5,5-6,5 |
2,0-2,5 |
– |
3,0-3,6 |
|
Р18Ф5 |
0,85-0,95 |
3,8-4,4 |
17,5-19,0 |
1,8-2,4 |
– |
0,5 |
|
Р9Ф5 |
1,40-1,50 |
3,8-4,4 |
9,0-10,5 |
4,3-5,1 |
– |
0,4 |
|
Р14Ф4 |
1,20-1,30 |
4,0-4,6 |
13,0-14,5 |
3,4-4,1 |
– |
0,4 |
|
Р9К5 |
0,90-1,00 |
3,8-4,4 |
9,0-10,5 |
2,0-2,6 |
5,0-6,0 |
0,3 |
|
Р9К10 |
0,90-1,00 |
3,8-4,4 |
9,0-10,5 |
2,0-2,6 |
9,5-10,5 |
0,3 |
|
Р10К5Ф5 |
1,45-1,55 |
4,0-4,6 |
10,0-11,5 |
4,3-5,1 |
5,0-6,0 |
0,3 |
|
Р18К5Ф2 |
0,85-0,95 |
3,8-4,4 |
17,5-19,0 |
1,8-2,4 |
5,0-6,0 |
0,5 |
| Notes: 1. The content of Mn, Si and Ni is not more than 0,4%; S and R less than 0.03% (for steels R9F5, R14F4 R10K5F5 allowed up to 0.035% R). Molybdenum content is allowed up to 1% in steel R18 and 0.6% in R9 steel (grade R18M and R9M). With increasing content of Mo in steels R18M and R9M more than 0.3%, the content of W can be reduced (1% Mo replaces 2% W). | ||||||
On the composition of high-speed steels are divided into tungsten (R9, R12, R18, R18F2), vanadic (R9F5, R14F4), cobalt (R9K5, R9K10) cobalt-vanadic (R10K5F5, R18K5F2). Find the application of low-alloyed high speed steels R7T, tungsten-molybdenum (R6M3 and R6M5F, cobalt-vanadic R6M3K5F2, R9M4K5F2 R18K8F2M etc.
Range of high speed steels: Bars hot rolled and blank forging – round and square, a strip; round bars of high surface finish and high dimensional accuracy; cold-rolled strip.
The main properties of high-speed steels
|
Steel grade |
γ в г/см³ |
Ас1 |
Аr1 |
Temperatureв °С |
НВ |
Weight % carbide phase |
|
|
forging |
annealing |
||||||
|
Р18 |
8,7 |
820 |
760 |
1200-900 |
840 |
207-255 |
28 |
|
Р9 |
8,3 |
810 |
760 |
1200-900 |
850 |
207-255 |
17 |
|
Р12 |
8,5 |
810 |
760 |
1200-900 |
840 |
207-255 |
23 |
|
Р18Ф2 |
8,7 |
820 |
760 |
1200-900 |
840 |
207-269 |
27 |
|
Р9Ф5 |
8,11 |
– |
– |
1180-900 |
850 |
207-269 |
20 |
|
Р14Ф4 |
8,42 |
– |
– |
1180-900 |
850 |
207-269 |
22 |
|
Р9К5 |
8,3 |
– |
– |
1150-900 |
850 |
207-269 |
17 |
|
Р9К10 |
8,3 |
– |
– |
1180-900 |
850 |
207-269 |
16 |
|
Р10К5Ф5 |
8,13 |
– |
– |
1180-900 |
850 |
207-269 |
22 |
|
Р18К5Ф2 |
8,2 |
– |
– |
1200-900 |
850 |
285 |
25 |
|
Р6М5 |
8,5 |
– |
– |
1150-900 |
840 |
207-235 |
20 |
|
Р18К8Ф2М |
8,7 |
820 |
– |
1180-900 |
860 |
262-270 |
– |
Application of high-speed steels
|
Steel grade |
Features and conditions working of the instrument |
Purpose |
|
R18 |
Tool with high wear resistance, keeps cutting properties when heated during operation up to 600 ° C |
Cutters, drills, cutters, reamers, core drills, taps |
|
R9 |
It works by heating with edge up to 600 ° C, does not require much grinding and sharpening. It is possible application of hot plastic deformation and induction hardening |
Cutters, drills, cutters, saws, tools for working wood, hacksaws |
|
R12 |
It works by heating rezhuyuschey edge up to 600 ° C, a significant amount of grinding is possible. You can use the hot plastic deformation |
Cutter tool, drills, cutters, reamers, broaches, screw-thread die |
|
R6М5 |
It works by heating up to 580-600 ° C, with high feed at high mechanical and impact loads. It is possible application method of hot plastic deformation |
Cutters, worm cutters, drills, broaches, machine taps |
|
R18F2 |
Instrument with increased performance compared with steels R9 and R18 performance and durability in the processing of materials of medium hardness, stainless and heat resisting alloys |
– |
|
R9F5 |
Tool with high wear resistance, working on finishing operations with a few feeds in the processing of steels of high hardness, high-temperature alloys, plastics, fibers, hard rubber. Bad polished |
Broaches, reamers |
|
R14F4 |
Tool with higher wear resistance of materials for processing of extra-strong and high-temperature alloys, and plastics with solids. Bad polished |
Cutters, milling, hobbing cutter, segments for saws |
|
R9K5 R9К10 |
Tool with high performance as compared to steel R18, red hardness and hot hardness to handle high-temperature, titanium alloys and other hard materials. Steel is prone to decarburization |
Cutters, milling, hobbing cutters, knives, inserts, special drills |
|
R10К5F5 R18К5F2 |
Tool with high performance, red hardness and wear resistance for processing of hard-to-make materials, heat resistant and titanium alloys. Steels are poorly polished and prone to decarburization |
Cutters, hobbing cutter, cutter knives, drill |
|
R18F2К8M |
Tool with higher wear resistance and durability for the treatment of titanium and superalloys, stainless and high-strength steels |
Cutters, drills, reamers, taps, gear-cutting tools |
They are used for production of metal cutting tools, designed for high speed cutting mode. Alloying of high-speed steels with tungsten, molybdenum, vanadium and cobalt provides hardness and heat resistance of steel.
Marking of high speed steels:
The number after the letter “R” indicates the average tungsten content (percentage of total weight, in the letter B is ignored). Then, after the letters M, F and K indicate the percentage of molybdenum, vanadium and cobalt.
Price
|
Марка стали |
Диаметр, мм |
Количество, кг |
Цена, грн 1 тн |
|
|
Р6М5 |
20 |
3 |
145000 |
|
|
Р6М5 |
21 |
5 |
145000 |
|
|
Р6М5 |
24 |
8 |
145000 |
|
|
Р6М5 |
25 |
2 |
145000 |
|
|
Р6М5 |
28 |
3 |
145000 |
|
|
Р6М5 |
29 |
7 |
145000 |
|
|
Р6М5 |
30 |
35 |
145000 |
|
|
Р6М5 |
31 |
21 |
145000 |
|
|
Р6М5 |
34 |
97 |
145000 |
|
|
Р6М5 |
35 |
28 |
145000 |
|
|
Р6М5 |
36 |
36 |
145000 |
|
|
Р6М5 |
37 |
17 |
145000 |
|
|
Р6М5 |
38 |
29 |
145000 |
|
|
Р6М5 |
39 |
58 |
145000 |
|
|
Р6М5 |
40 |
36 |
145000 |
|
|
Р6М5 |
41 |
25 |
145000 |
|
|
Р6М5 |
42 |
14 |
145000 |
|
|
Р6М5 |
43 |
36 |
145000 |
|
|
Р6М5 |
44 |
24 |
145000 |
|
|
Р6М5 |
45 |
32 |
145000 |
|
|
Р6М5 |
46 |
26 |
145000 |
|
|
Р6М5 |
47 |
58 |
145000 |
|
|
Р6М5 |
48 |
23 |
145000 |
|
|
Р6М5 |
49 |
14 |
145000 |
|
|
Р6М5 |
50 |
25 |
145000 |
|
|
Р6М5 |
51 |
38 |
145000 |
|
|
Р6М5 |
52 |
55 |
145000 |
|
|
Р6М5 |
53 |
34 |
145000 |
|
|
Р6М5 |
54 |
22 |
145000 |
|
|
Р6М5 |
55 |
67 |
145000 |
|
|
Р6М5 |
56 |
13 |
145000 |
|
|
Р6М5 |
57 |
19 |
145000 |
|
|
Р6М5 |
58 |
26 |
145000 |
|
|
Р6М5 |
59 |
24 |
145000 |
|
|
Р6М5 |
60 |
54 |
145000 |
|
|
Р6М5 |
61 |
42 |
145000 |
|
|
Р6М5 |
62 |
23 |
145000 |
|
|
Р6М5 |
63 |
24 |
145000 |
|
|
Р6М5 |
64 |
27 |
145000 |
|
|
Р6М5 |
65 |
55 |
145000 |
|
|
Р6М5 |
66 |
76 |
145000 |
|
|
Р6М5 |
67 |
34 |
145000 |
|
|
Р6М5 |
68 |
45 |
145000 |
|
|
Р6М5 |
69 |
22 |
145000 |
|
|
Р6М5 |
70 |
14 |
145000 |
|
|
Р6М5 |
71 |
25 |
145000 |
|
|
Р6М5 |
88 |
23 |
145000 |
|
|
Р6М5 |
90 |
34 |
145000 |
|
|
Р6М5 |
91 |
25 |
145000 |
|
|
Р6М5 |
92 |
23 |
145000 |
|
|
Р6М5К5 |
34 |
14 |
150000 |
|
|
Р6М5К5 |
38 |
43 |
155000 |
|
|
Р6М5К5 |
44 |
38 |
150000 |
|
|
Р6М5К5 |
45 |
57 |
162000 |
|
|
Р6М5К5 |
46 |
45 |
162000 |
|
|
Р6М5К5 |
47 |
36 |
150000 |
|
|
Р6М5К5 |
48 |
25 |
150000 |
|
|
Р6М5К5 |
50 |
35 |
162000 |
|
|
Р6М5К5 |
53 |
24 |
155000 |
|
|
Р6М5К5 |
54 |
27 |
155000 |
|
|
Р9 |
35 |
13 |
145000 |
|
|
Р9 |
37 |
76 |
145000 |
|
|
Р12 |
38 |
56 |
150000 |
|
|
Р18 |
27 |
34 |
182000 |
|
|
Р18 |
41 |
24 |
182000 |
|
|
Р18 |
43 |
54 |
182000 |
|
|
Р18 |
46 |
56 |
182000 |
|
|
Р18 |
48 |
76 |
182000 |
|
|
Р18 |
49 |
34 |
180000 |
|
|
Р18 |
55 |
23 |
175000 |
|
|
Марка стали |
Диаметр, мм |
Количество, кг |
Цена, грн 1 тн |
|
Круги стальные, Круги кованные
|
Марка стали |
Диаметр, мм |
Количество, кг |
Цена, грн 1 тн |
|
|
Р18 |
45 |
180000 |
||
|
Р18 |
60 |
180000 |
||
|
Р18 |
70 |
180000 |
||
|
Р18 |
85 |
180000 |
||
|
Р18 |
105 |
180000 |
||
|
Р9 |
90 |
145000 |
||
|
Р6М5 |
20 |
155000 |
||
|
Р6М5 |
28 |
155000 |
||
|
Р6М5 |
30 |
155000 |
||
|
Р6М5 |
35 |
150000 |
||
|
Р6М5 |
40 |
150000 |
||
|
Р6М5 |
45 |
150000 |
||
|
Р6М5 |
48 |
145000 |
||
|
Р6М5 |
50 |
150000 |
||
|
Р6М5 |
52 |
150000 |
||
|
Р6М5 |
55 |
150000 |
||
|
Р6М5 |
60 |
150000 |
||
|
Р6М5 |
65 |
150000 |
||
|
Р6М5 |
70 |
150000 |
||
|
Р6М5 |
75 |
150000 |
||
|
Р6М5 |
85 |
150000 |
||
|
Р6М5 |
87 |
150000 |
||
|
Р6М5 |
90 |
150000 |
||
|
Р6М5 |
100 |
150000 |
||
|
Р6М5 |
105 |
150000 |
||
|
Р6М5 |
110 |
150000 |
||
|
Р6М5 |
120 |
150000 |
||
|
Р6М5 |
115 |
150000 |
||
|
Р6М5 |
125 |
150000 |
||
|
Р6М5 |
130 |
150000 |
||
|
Р6М5 |
135 |
150000 |
||
|
Р6М5 |
140 |
150000 |
||
|
Р6М5 |
160 |
145000 |
||
|
Р6М5К5 |
50 |
170000 |
||
|
Р6М5К5 |
55 |
170000 |
||
|
Р6М5К5 |
160 |
170000 |
||
|
Р9М4К8 |
45 |
договорная |
||
|
Р9М4К8 |
50 |
договорная |
||
|
Р9М4К8 |
55 |
договорная |
||
|
Р9М4К8 |
100 |
договорная |
||
|
Р6М5Ф3 |
72 |
155000 |
||
|
Р9К5 |
50 |
155000 |
||
|
Марка стали |
Диаметр, мм |
Количество, кг |
Цена, грн 1 тн |
|
Круги стальные, Круги Г\К
|
Марка стали |
Диаметр, мм |
Количество, кг |
Цена, грн 1 тн |
|
|
Р12 |
16 |
155000 |
||
|
Р12 |
19 |
155000 |
||
|
Р12 |
21 |
155000 |
||
|
Р12 |
40 |
155000 |
||
|
Р18 |
20 |
190000 |
||
|
Р18 |
21 |
190000 |
||
|
Р18 |
28 |
190000 |
||
|
Р18 |
35 |
190000 |
||
|
Р18 |
36 |
190000 |
||
|
Р18 |
38 |
190000 |
||
|
Р18 |
41 |
190000 |
||
|
Р18 |
54 |
183000 |
||
|
Р18 |
60 |
190000 |
||
|
Р18 |
70 |
190000 |
||
|
Р18 |
80 |
190000 |
||
|
Р18 |
83 |
170000 |
||
|
Р18 |
85 |
165000 |
||
|
Р18 |
100 |
165000 |
||
|
Р18 |
180 |
190000 |
||
|
Р6М5 |
2,5 |
155000 |
||
|
Р6М5 |
6,5 |
170000 |
||
|
Р6М5 |
9 |
155000 |
||
|
Р6М5 |
10 |
155000 |
||
|
Р6М5 |
11 |
155000 |
||
|
Р6М5 |
12,5 |
170000 |
||
|
Р6М5 |
16 |
165000 |
||
|
Р6М5 |
17 |
150000 |
||
|
Р6М5 |
20 |
155000 |
||
|
Р6М5 |
30 |
150000 |
||
|
Р6М5 |
34 |
150000 |
||
|
Р6М5 |
39 |
145000 |
||
|
Р6М5 |
40 |
145000 |
||
|
Р6М5 |
45 |
145000 |
||
|
Р6М5 |
50 |
145000 |
||
|
Р6М5 |
52 |
145000 |
||
|
Р6М5 |
55 |
130000 |
||
|
Р6М5 |
60 |
125000 |
||
|
Р6М5 |
65 |
145000 |
||
|
Р6М5 |
70 |
145000 |
||
|
Р6М5 |
76 |
125000 |
||
|
Р6М5 |
83 |
125000 |
||
|
Р6М5 |
90 |
145000 |
||
|
Р6М5 |
102 |
145000 |
||
|
Р6М5Ф3 |
40 |
165000 |
||
|
Р6М5Ф3-мп |
66 |
170000 |
||
|
Р6М5Ф3 |
80 |
165000 |
||
|
Р6М5Ф3 |
72 |
165000 |
||
|
Р6М5 |
105 |
125000 |
||
|
Р6М5 |
110 |
125000 |
||
|
Р6М5 |
118 |
125000 |
||
|
Р6М5 |
150 |
125000 |
||
|
Р9 |
12 |
150000 |
||
|
Р9 |
14 |
150000 |
||
|
Р9 |
16 |
150000 |
||
|
Р9 |
20 |
150000 |
||
|
Р9 |
22 |
150000 |
||
|
Р9 |
25 |
150000 |
||
|
Р9 |
30 |
150000 |
||
|
Р9 |
45 |
150000 |
||
|
Р9К5 |
45 |
155000 |
||
|
Р6М5К5 |
10 |
175000 |
||
|
Р6М5К5 |
12 |
182000 |
||
|
Р6М5К5-мп |
16 |
195000 |
||
|
Р6М5К5-мп |
70 |
195000 |
||
|
Р9М4К8 |
10 |
250000 |
||
|
Р9М4К8 |
12 |
250000 |
||
|
Р9М4К8 |
14 |
250000 |
||
|
Р9М4К8 |
15 |
250000 |
||
|
Р9М4К8 |
16 |
250000 |
||
|
Р9М4К8 |
18 |
250000 |
||
|
Р9М4К8 |
20 |
250000 |
||
|
Р9М4К8 |
22 |
250000 |
||
|
Р9М4К8 |
25 |
250000 |
||
|
Р9М4К8 |
30 |
250000 |
||
|
Р6М5Ф3мп |
51 |
145000 |
||
|
Р12М3К5Ф2мп |
25 |
170000 |
||
|
Р12М3К5Ф2мп |
29 |
170000 |
||
|
Марка стали |
Диаметр, мм |
Количество, кг |
Цена, грн 1 тн |
|