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Steels for carburizing

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A&D Grade

Specifications

Chemical Composition

Mechanical properties

European standard

USA

Common designation

C

Ni

Cr

Mo

Heat
treatment

UTS
(N/mm²)

0,2% YS
(N/mm²)

A
(%)

10NiCrMo13‑5

UNS: G93106
AISI: 9310

0.10

3.25

1.20

0.10

T + Rv 150°C

1150

900

14

14NiCrMo13‑4

0.16

3.20

1.00

0.25

T + Rv 150°C

1350

1000

14

16NiCrMo16‑5

0.16

4.25

1.20

0.20

T + F + Rv 150°C

1450

1150

12

20NiCrMo13

UNS: K41910

0.20

3.20

1.00

0.50

T + Rv 150°C

1500

1250

13

15NiMoSiCr10

UNS: K51570

0.15

2.50

1.00

2.00

T + F + Rv 300°C

Tgaz + F + Rv 300°C

1400

1350

1120

1030

13

13

20NiCrMo2‑2

UNS: G86200
AISI: 8620

8620

0.20

0.50

0.50

0.20

T + Rv 200°C

T + Rv 575°C

1300

900

1050

700

11

18

16NiCr5‑4

0.15

1.60

0.85

T + Rv 150°C

T + Rv 575°C

1200

800

1050

700

11

19

10NiCr5‑4

0.12

1.60

0.85

T + Rv 150°C

T + Rv 575°C

1000

750

850

650

13

23

12NiCr12

0.12

3.30

0.75

T + Rv 150°C

T + Rv 575°C

1150

850

950

700

14

19


A&D Grade	Specifications			Main Standards
	European standard	USA	Common designation	AIR	AECMA	NF-EN/NF-EN-ISO/NF-A		WL	BS	AMS	ASTM		SUS	JIS
	European standard	USA	Common designation	Standard	Standard	Symbol	Numerical	Standard	Standard	Standard	Grade	Standard	Standard	Standard
FADC	10NiCrMo13‑5	UNS: G93106 AISI: 9310								6265
FADH	14NiCrMo13‑4			16NCD13		14NiCrMo13‑4	1.6657	1.6657	S157
FADS	16NiCrMo16‑5			16NCD17	FE‑PL79			1.6723	S82
FDG	20NiCrMo13	UNS: K41910				20NiCrMo13‑4	1.6660			6492 ‑ 6493
FND	15NiMoSiCr10	UNS: K51570								6494 ‑ 6495
JD19	20NiCrMo2‑2	UNS: G86200 AISI: 8620	8620			20NiCrMo2‑2	1.6523			6274	8620	A322
MMR1	16NiCr5‑4
MMR3	10NiCr5‑4					10NiCr5‑4	1.5805
NCAV	12NiCr12			12NC12	FE‑PL61

Replier

A&D Grade

Specifications

Mechanical properties

European standard

USA

Common designation

Heat
treatment

UTS
(N/mm²)

0,2% YS
(N/mm²)

A
(%)

KCU
(J/cm²)

KV
(J)

KV -40°C
(J)

KV -60°C
(J)

Hardness
HV

Hardness
HRC

10NiCrMo13‑5

UNS: G93106
AISI: 9310

T + Rv 150°C

1150

900

14

120

14NiCrMo13‑4

T + Rv 150°C

1350

1000

14

100

16NiCrMo16‑5

T + F + Rv 150°C

1450

1150

12

90

20NiCrMo13

UNS: K41910

T + Rv 150°C

1500

1250

13

90

15NiMoSiCr10

UNS: K51570

T + F + Rv 300°C

Tgaz + F + Rv 300°C

1400

1350

1120

1030

13

13

120

110

20NiCrMo2‑2

UNS: G86200
AISI: 8620

8620

T + Rv 200°C

T + Rv 575°C

1300

900

1050

700

11

18

80

120

16NiCr5‑4

T + Rv 150°C

T + Rv 575°C

1200

800

1050

700

11

19

90

150

10NiCr5‑4

T + Rv 150°C

T + Rv 575°C

1000

750

850

650

13

23

110

190

12NiCr12

T + Rv 150°C

T + Rv 575°C

1150

850

950

700

14

19

120

150


A&D Grade	Specifications			Chemical composition
A&D Grade	European standard	USA	Common designation	C	Ni	Cr	Mo	Si
FADC	10NiCrMo13‑5	UNS: G93106 AISI: 9310		0.10	3.25	1.20	0.10
FADH	14NiCrMo13‑4			0.16	3.20	1.00	0.25
FADS	16NiCrMo16‑5			0.16	4.25	1.20	0.20
FDG	20NiCrMo13	UNS: K41910		0.20	3.20	1.00	0.50
FND	15NiMoSiCr10	UNS: K51570		0.15	2.50	1.00	2.00	1.10
JD19	20NiCrMo2‑2	UNS: G86200 AISI: 8620	8620	0.20	0.50	0.50	0.20
MMR1	16NiCr5‑4			0.15	1.60	0.85
MMR3	10NiCr5‑4			0.12	1.60	0.85
NCAV	12NiCr12			0.12	3.30	0.75

Key to heat treatment symbols
Solution treated	H	Annealed	R
Thermo-mechanical treatment	TM	Quenched and tempered	T+RV
Sub-zero treatment	F	Solution treated and aged	H+V

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