AICHI TECHNO METAL FUKAUMI Co.,Ltd.

High-strength stainless steel plate

Image of strength and corrosion-resistant

Case of mechanical property

Classification Stainless steel type Tension test Hardness test Charpy impact test
0.2% bearing
(N/㎟)
Tensile strength
(N/㎟)
Growth
(%)
Drawing
(%)
Hardnessさ
(HV20)
Energy
KV2(J)
13Cr series SUS1A-1 269 428 40 84 135 116
AUS-1 285 553 36 80 167 255
SUS2A-S 352 627 30 67 181 35
SUS3N-F 304 620 29 64 179 40
SUS420J2 354 648 32 63 187 31
AUS-4 314 676 29 63 196 23
AUS-6M 367 750 26 53 221 13
AUS-8 389 795 23 39 236 13
AUS-10 320 778 22 40 233 10
16Cr series AUS-41 490 785 26 54 237 26
17Cr series SUS440A 468 825 21 39 248 12
ACUTO440 478 826 17 24 260 7
SUS440C 377 821 16 22 254 5

Characteristics and examples of use

Classification Stainless steel type Characteristics and examples of use
13Cr series SUS1A-1 SUS1A-1 has the least amount of carbon among 13 chrome steels. As a result, among 13 chrome steels, SUS1A-1 has superior corrosion resistance with cold rolling and welding ability.
AUS-1,SUS2A-S are increased carbon contents,improved heat treatment hardness and wear resistance.
Use is gauges.
AUS-1
SUS2A-S
SUS3N-F Add sulfur to SUS420J2, improved machinability. Use is gauges.
SUS420J2 JIS steel type,uses are popular knives,gauges.
AUS-4 AUS-4 is enhanced 13Cr steel’s carbon contents,and improve quenching hardness.
AUS-6M AUS-6M,AUS-8 and AUS-10 are increased more carbon contents,added vanadium and molybdenum, improved more hardness,wear resistance,annealing resistance.
Uses are high-quality knife,scissors,pocket knife,medical equipment,food machine,mechanical parts and more.
AUS-8
AUS-10
16Cr series AUS-41 This steel is increased chromium and add molybdenum,improved corrosion-resistance and wear resistance.
Use is high-quality knife.
17Cr series SUS440A These steels have corrosion-resistance and wear resistance at the same time. Improve wear resistance 1.SUS440A 2.ACUTO440 3.SUS440C (improving wear resistance)
Uses are high-quality knife,hairdressing or cosmetic scissors,medical equipment,gauges,food machine,mechanical parts,automobile parts and more.
ACUTO440
SUS440C

Chemical component

Classification Stainless steel type Chemical component(%)
C Si Mn P S Cr Mo V
13Cr series SUS1A-1 under
0.08
under
0.70
under
1.00
under
0.040
under
0.030
13.00-
14.50
under
0.60
AUS-1 0.09-
0.13
under
0.40
under
1.00
under
0.040
under
0.015
12.00-
13.00
under
0.60
SUS2A-S 0.23-
0.28
under
1.00
under
1.00
under
0.040
under
0.030
13.00-
14.50
under
0.60
SUS3N-F 0.33-
0.37
0.40-
0.70
0.50-
0.90
under
0.040
0.070-
0.110
13.00-
14.50
under
0.60
SUS420J2 0.26-
0.40
under
1.00
under
1.00
under
0.040
under
0.030
12.00-
14.00
under
0.60
AUS-4 0.40-
0.45
under
0.80
under
1.00
under
0.040
under
0.005
13.00-
14.50
under
0.60
AUS-6M 0.55-
0.65
under
0.80
under
0.85
under
0.040
under
0.005
13.00-
14.50
0.10-
0.30
0.10-
0.25
AUS-8 0.70-
0.80
under
0.80
under
0.50
under
0.040
under
0.005
13.00-
14.50
0.10-
0.30
0.10-
0.25
AUS-10 0.95-
1.10
under
0.80
under
1.00
under
0.040
under
0.005
13.00-
14.50
0.10-
0.30
0.10-
0.25
16Cr series AUS-41 0.42-
0.48
under
0.80
under
1.00
under
0.040
under
0.005
15.00-
16.00
0.40-
0.80
0.05-
0.25
17Cr series SUS440A 0.60-
0.75
under
0.80
under
1.00
under
0.040
under
0.005
16.00-
18.00
0.30-
0.75
ACUTO440 0.80-
0.95
0.35-
0.50
0.25-
0.40
under
0.040
under
0.030
17.00-
18.00
1.00-
1.25
0.08-
0.12
SUS440C 0.95-
1.20
under
0.80
under
1.00
under
0.040
under
0.005
16.00-
18.00
under
0.75

Case of heat-treat terms

Classification Stainless steel type target temperature of heat treat(℃) *reference of quenching-tempering strength(HRC)
Annealing Quenching Tempering
13Cr series SUS1A-1 850℃ slow cooling 1050℃ oil cooling or air cooling 180 18.6
AUS-1 56.0
SUS2A-S
SUS3N-F 57.3
SUS420J2
AUS-4
AUS-6M 58.0
AUS-8 59.0
AUS-10 60.0
16Cr series AUS-41 850℃ slow cooling 1050℃ oil cooling or air cooling 180 57.0
17Cr series SUS440A 850℃ slow cooling 1050℃ oil cooling or air cooling 180 58.0
ACUTO440
SUS440C 60.0

Date of quenching

(1)13Cr series〔AUS-4、AUS-6M、AUS-8、AUS-10〕

(2)16Cr series〔AUS-41〕

(3)17Cr series〔SUS440A、ACUTO440、SUS440C〕

(4)Effect of hold time

(5)Residual austenite quantity

Date of tempering

(1)13Cr series〔AUS-4、AUS-6M、AUS-8、AUS-10〕

(2)16Cr series〔AUS-41〕

(3)17Cr series〔SUS440A、ACUTO440、SUS440C〕

Date of annealing

Stainless steel for high-quality knife ACUTO440

Merit

With good performance of knives including kitchen knives the demand of stainless steel for high-quality knives that can keep superior cutting property and corrosion resistance has increased.
In response to this demand ACUTO440 is developed, the stainless steel for high-quality knives that contains Mo and V to get a superior cutting property and corrosion resistance.

Cutting property

Cutting property of ACUTO440 is extremely excellent throughout the cutting process

Corrosion-resistance

■Case of quenching(air cooling)

■Case of change quenching condition

*Air cooling in restraining shows cooling by air after material is sandwiched between two 7mm thick plates,and then restrained them by wire. By sandwiching like this,cooling rate is intentionally slowdown than taht of direct air cooling.

Free-cutting stainless steel SUS3N-F

Machinability(compared with SUS420J2)

◎Test result
Test result,SUS3N-F to last long more than 2 times compre with SUS420J2

Size of products

Hot rolling sheet

Classification Stainless steel type Size of products(mm)
Thickness
※1
Width Length
※2
230 240 250
13Cr series SUS1A-1 6.0-
20.0
- - 1,000-
4,000
AUS-1 6.0-
20.0
- - 1,000-
4,000
SUS2A-S 6.0-
20.0
- - 1,000-
4,000
SUS3N-F 6.0-
20.0
- 1,000-
4,000
SUS420J2 6.0-
20.0
- - 1,000-
4,000
AUS-4 6.0-
20.0
- - 1,000-
4,000
AUS-6M 6.0-
20.0
- 1,000-
4,000
AUS-8 6.0-
20.0
- 1,000-
4,000
AUS-10 6.0-
20.0
- 1,000-
4,000
16Cr series AUS-41 6.0-
20.0
- - 1,000-
4,000
17Cr series SUS440A 6.0-
20.0
- - 1,000-
4,000
ACUTO440 6.0-
20.0
- 1,000-
4,000
SUS440C 6.0-
20.0
- 1,000-
4,000

※1 Possible to manufacture each 1.0mm thickness
※2 Possible to cut any length,but we have basic length by thickness.

Cold rolling sheet

Classification Stainless steel type Size of products(mm)
Thickness
※3
Width
※4
Length
※5
230 240 250
13Cr series SUS1A-1 0.8-
10.0
- - 1,000-
2,800
AUS-1 0.8-
10.0
- - 1,000-
2,800
SUS2A-S 0.8-
10.0
- - 1,000-
2,800
SUS3N-F 0.8-
10.0
- 1,000-
2,800
SUS420J2 0.8-
10.0
- - 1,000-
2,800
AUS-4 0.8-
10.0
- - 1,000-
2,800
AUS-6M 0.8-
10.0
- 1,000-
2,800
AUS-8 0.8-
10.0
- 1,000-
2,800
AUS-10 0.8-
10.0
- 1,000-
2,800
16Cr series AUS-41 0.8-
10.0
- - 1,000-
2,800
17Cr series SUS440A 0.8-
10.0
- - 1,000-
2,800
ACUTO440 0.8-
10.0
- 1,000-
2,800
SUS440C 0.8-
10.0
- 1,000-
2,800

※3 Possible to manufacture each 0.1mm thickness.
※4 Possible to cut any wide if the thickness is 3mm,the length is 2,000mm and under.
※5 Possible to cut any length,but we have basic length by thickness.

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