Characteristics and example use

Classification Characteristics and example use
13Cr 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 medical equipment and others.
AUS-1
SUS2A-S
SUS3N-F Add sulfur to SUS420J2, improved machinebility. Use is gauges.
SUS420J2 JIS steel type,uses are popular knives,gauges.
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
17Cr 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

Size of products

Hot rolling sheet

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

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

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

Mechanical property and chemical component

Mechanical property

Classification S/S type Tension test Hardness test Charpy
impact test
0.2% bearing
(N/㎟)
Tensile strength
(N/㎟)
Growth
(%)
Drawing
(%)
Hardness
(HV20)
Energy
KV2 (J)
13Cr 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
17Cr SUS440A 468 825 21 39 248 12
ACUTO440 478 826 17 24 260 7
SUS440C 377 821 16 22 254 5

Chemical component

Classification S/S type Chemical component (%)
C Si Mn P S Ni Cr Mo V
13Cr SUS1A-1 ≦0.08 ≦0.7 ≦1.0 ≦0.04 ≦0.03 ≦0.49 13.00-
14.50
≦0.6
AUS-1 0.09-
0.13
≦0.4 ≦1.0 ≦0.04 ≦0.015 ≦0.60 12.00-
13.00
≦0.6
SUS2A-S 0.23-
0.28
≦1.0 ≦1.0 ≦0.04 ≦0.03 ≦0.30 13.00-
14.50
≦0.6
SUS3N-F 0.33-
0.37
0.40-
0.70
0.50-
0.90
≦0.04 0.07-0.11 ≦0.30 13.00-
14.50
≦0.6
SUS420J2 0.26-
0.40
1.00以下 ≦1.0 ≦0.04 ≦0.003 ≦0.60 12.00-
14.00
≦0.60
AUS-4 0.40-
0.45
≦0.8 ≦1.0 ≦0.04 ≦0.005 ≦0.30 13.00-
14.50
≦0.6
AUS-6M 0.55-
0.65
≦0.8 ≦0.85 ≦0.04 ≦0.005 ≦0.30 13.00-
14.50
0.10-
0.30
0.10-
0.25
AUS-8 0.70-
0.80
≦0.8 ≦0.50 ≦0.04 ≦0.005 ≦0.30 13.00-
14.50
0.10-
0.30
0.10-
0.25
AUS-10 0.95-
1.10
≦0.8 ≦1.0 ≦0.04 ≦0.005 ≦0.30 13.00-
14.50
0.10-
0.30
0.10-
0.25
17Cr SUS440A 0.60-
0.75
≦0.8 ≦1.0 ≦0.04 ≦0.005 ≦0.30 16.00-
18.00
0.30-
0.75
ACUTO440 0.80-
0.95
0.35-
0.50
0.25-
0.40
≦0.04 ≦0.03 ≦0.25 17.00-
18.00
1.00-
1.25
0.08-
0.12
SUS440C 0.95-
1.20
≦0.8 ≦1.0 ≦0.04 ≦0.005 ≦0.30 16.00-
18.00
≦0.75

Strength and corrosion-resistant

Strength and corrosion-resistant

Strength and corrosion-resistant

Classification S/S type Target temperature of heat treat (℃) Reference of
quenching-
tempering
strength(HRC)
Annealing Quenching Tempering
13Cr SUS1A-1 850
slow
cooling
1050
oil p or
air cooling
180 18.6
AUS-1 56.0
SUS2A-S
SUS3N-F 57.3
SUS420J2 57.3
AUS-6M 58.0
AUS-8 59.0
AUS-10 60.0
17Cr SUS440A 58.0
ACUTO440 1070℃ 58.0
SUS440C 1050℃ 60.0