35NiCr6, 35NC6 - Structural steel

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Standards and chemical composition Specification Properties Treatment Replacements

Structural steel for thermal improvement 35NiCr6, 36NiCr6, 1.5710, 1.5815, 35NC6 for heavy-duty part for aviation industry according to EN 10083-3, AIR 9160/C.

Standard	Steel Grade
	Chemical Composition %
	C:	Mn:	Si:	P:	S:	Cr:	Ni:	Cu:
EN	36NiCr6 - 1.5710
EN	0.32 - 0.40	0.4 - 0.8	0.15 - 0.35	<0.035	<0.035	0.3 - 0.7	1.25 - 1.75	-
EN/DIN	35NiCr6 - 36NiCr6-4 - 1.5815
EN/DIN	0.33 - 0.39	0.6 - 0.9	0.10 - 0.40	<0.035	<0.035	0.85 - 1.15	1.20 - 1.60	-
DIN	40NiCr6 - 1.5711
DIN	0.38 - 0.43	0.7 - 0.9	0.15 - 0.35	<0.035	<0.035	0.55 - 0.75	1.1 - 1.4	-
AF	35NC6
AF	0.33 - 0.39	0.6 - 0.9	0.10 - 0.40	<0.035	<0.035	0.85 - 1.15	1.20 - 1.60	-
AF	30NC6
AF	0.25 - 0.35	0.6 - 0.9	0.10 - 0.40	<0.040	<0.035	0.85 - 1.15	1.20 - 1.60	-
ASTM	UNS K22033 - AMS 6330E
ASTM	0.33 - 0.38	0.6 - 0.8	0.20 - 0.35	<0.025	<0.025	0.55 - 0.75	1.1 - 1.4	<0.35

35NiCr6, 1.5815, 36NiCr6, 1.5710 - specifications and application

Steel for heat improvement characterized by high strength properties, good ductility, resistance to fatigue and impact. Used for heavy-duty parts of engines, devices and machines, used in the production of crankshafts, gears, shafts, piston rods, bolts, heat-treated gears and piston rods.

Mechanical properties of 35NiCr6, 1.5815, 35NC6 steel in heat-improved condition:

Dimensions <16mm
- Tensile strength, R_m: 880 - 1080 MPa
- The yield point, R_e: > 740 MPa
- Elongation, A:> 12%
- Contraction, Z: >40%
Dimensions 16 - 40mm
- Tensile strength, R_m: 880 - 1080 MPa
- The yield point, R_e: > 740 MPa
- Elongation, A:> 14%
- Contraction, Z: >40%
- Impact resistance, KV: > 35J
Dimensions 40 - 100mm
- Tensile strength, R_m: 780 - 980 MPa
- The yield point, R_e: > 640 MPa
- Elongation, A:> 15%
- Contraction, Z: >40%
- Impact resistance, KV: > 35J
Hardness in +A annealed condition: <223 HBW

Heat treatment:

Hardening at 840 - 860 ℃ with cooling in water or oil
Tempering at a tempering of 530 - 630℃

In the above-mentioned grades we deliver:

Substitutes, equivalents and other species designations

AISI 3140

SNC1

SNC236

640M40

EN111

35NC5

35NC6

35 NC 6

30NC6

30 NC 6

1.5710

1.5815

36NiCr6

36 NiCr 6

35NiCr6

35 NiCr 6

36 NiCr 6-4

36NiCr6-4

35Ni5Cr2

CSN 16240

40NiCr6

40 NiCr 6

1.5711

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