30NiCrMo16-6 Steel for Quenching and Tempering 1.6747 35NCD16

Application

30NiCrMo16 steel exhibit very good hardenability, impact resistance, load, deformation, wear and tensions resistances. Used for heavy-duty parts of engines, devices and machines,  aviation and aerospace industries, used in the production of crankshafts, gears, shafts, bolts, heat-treated gears and piston rods, etc.

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Quality Standard

-DIN EN 10083-3 Steel for quenching and tempering alloy steels.

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Steel Grades

EN                                         DIN                                ANFOR

30NiCrMo16-6                 1.6747                            35NCD16

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Chemical Composition(%)

C	Si	Mn	P	S	Cr	Mo	Ni
0.26-0.33	0.40 max	0.50-0.80	0.025 max	0.025 max	1.20-1.50	0.30-0.60	3.30-4.30

Mechanical Properties

Heat treatment	Diameter (mm)	Tensile Strength Rm (Mpa)	Yield Strength Rp0.2 (Mpa)	Elongation % in 2″ (%)	Reduction Of Area (%)	Impact Test (J)
Q+T	16 max	1080-1230	880 min	10 min	45 min	/
Q+T	16-40	1080-1230	880 min	10 min	45 min	35 min
Q+T	40-100	1080-1230	880 min	10 min	45 min	35 min
Q+T	100-160	900-1050	790 min	11 min	50 min	35 min
Q+T	160-250	900-1050	880 min	11 min	50 min	35 min

Heat treatment

Process	Temperature
Normalizing annealing	850 – 880℃
Softening annealing	650 – 700℃
Hardening	865 – 885℃
Tempering	550 – 650℃
Hardness in softened state	269 HB max

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Capacity

1,500 ton per month.

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Test

Chemical analysis, Mechnical analysis, Ultrasonic testing, Metallographic, Surface quality and dimension report.

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Package

Each bundle of max 3,000kg with several steel strips, Two tags on each bundle, Wrapped in waterproof paper, PVC sleeve, and sackcloth with several steel strips.

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Mill’s Test Certificate

EN 10204/3.1 with all relevant data reg. chem. composition, mech. properties and results of testing.

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