Non-Corrosion Resisting Steel 30NCD16

Technical Data Sheet


Chemical Composition Limits
4% Ni-Cr-Mo, Alloy Steel, Air Hardening 100 ton, Ruling Section 2.5"
Weight% C Si Mn P+S max Cr Mo Ni Others
4S28 0.38 - 0.45 0.60-0.90 0.010 1.45-1.80 0.70-0.95 1.65-2 0.30-0.50 0.05-0.10
Chemically similar British Specifications BS.970 Pt2.
Weight% C Si Mn P+S max Cr Mo Ni Others
835M30 0.26-0.34 0.10-0.35 0.45-0.75 P 0.025-0.50
S 0.025-0.040
1.10-1.40 0.20-0.35 3.90-4.30 -
EN30B 0.26-0.34 0.10-0.35 0.40-0.60 - - 0.20-0.40 3.90-4.30 -
Other Chemically similar Specifications
Weight% C Si Mn P+S max Cr Mo Ni Others
0.25-0.35 0.10-0.40 0.20-0.55 P 0.030
S 0.025
1.20-1.50 0.40-0.60 3.70-4.30 -
0.030-0.37 0.10-0.40 0.30-0.60 P 0.030
S 0.025
1.60-2.00 0.30-0.50 3.70-4.20 -
WS 1.2766
0.32-0.38 0.15-0.30 0.40-0.60 0.035 max 1.20-1.50 0.20-0.40 3.80-4.30 -

Alloy 30NCD16 is nickel-chrome-moly steel with excellent hardenability and good resistance to fatigue and repeated impact. It is used in a wide range of safety-critical parts, gears and crank shafts in both the aerospace and motorsports industries.

Typical Mechanical Properties


Alloy Condition Tensile Strength N/mm² Yield Strength N/mm² Elongation % Impact Strength (KCU) Hardness HB
Alloy 30NCD16 Annealed - - - - 235
Alloy 30NCD16 Quenched & Tempered (200°C) 1750 1250 12 70 J/cm² -
Alloy 30NCD16 Quenched & Tempered (625°C) 1000 900 19 140 J/cm² -

For all stock availability contact Sales.

BS 4S28
835M30 / EN30B
WS 1.2766
AFNOR 35NCD16 (819B)
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Every effort is made to ensure that technical specifications are accurate. However, technical specifications included herein should be used as a guideline only. All specifications are subject to change without notice.

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