30NCD2
2025-12-30 10:06:00 Origin： Remark：0 Click：
High tensile strength alloy steel 30NCD2 peeled round bar, flat bar, plate, ESR melted, hot bloomed, forged, rolled, heat treated, cold worked
Official test certificate: issued by TUV - SGS - BV
TECHNICAL DATA SHEET - 30NCD2
Material category: 0.5Cr - 0.65Ni - 0.25Mo base structure steel
Typical chemical compositions (mass weight %)
Carbon, C (％): 0.25 ~ 0.35
Silicon, Si (％): 0.10 ~ 0.40
Silicon, Si (％): 0.10 ~ 0.40
Manganese, Mn (％): 0.70 ~ 0.90
Phosphorus, P (％): ≤ 0.040
Sulfur, S (％): ≤ 0.035
Chromium, Cr (％): 0.40 ~ 0.60
Nickel, Ni (％): 0.50 ~ 0.80
Phosphorus, P (％): ≤ 0.040
Sulfur, S (％): ≤ 0.035
Chromium, Cr (％): 0.40 ~ 0.60
Nickel, Ni (％): 0.50 ~ 0.80
Molybdenum, Mo (%): 0.15 ~ 0.30
MECHANICAL PROPERTIES UNDER ROOM TEMP.
Tensile strength, Rm / MPa: 690 ~ 930
Yield strength, Rp0.2 / MPa ≥: 490
Elongation, A5 (％) ≥: 11.0
Yield strength, Rp0.2 / MPa ≥: 490
Elongation, A5 (％) ≥: 11.0
Delivery hardness, HBS ≥: -
PRODUCT DESCRIPTION
Alloy structural steel is provided with higher yield strength, tensile strength, endurance strength, yield ratio (about 0.85 generally ) enough plasticity and toughness.
The alloy is usually produced by EAF /VD /LF followed by electroslag refining (ESR) if necessary for special purpose. Bars and, where applicable, forgings are subjected to ultrasonic examination based on the different level according to the buyers' requirements.
Bars are usually supplied bright in the annealed condition.
Final heat treatment - quenched and tempered.
TYPICAL APPLICATIONS
Alloy structural steels are widely used in the filed of ship, vehicle, airplane, guided missile, weapons, railway, bridges, pressure vessel, machine tools, mechanical components with a bigger sectional size and so on.
Power generation – turbine fasteners – boiler support rods.
Process plant – fasteners.
Process plant – fasteners.
Mechanical gears, gear shaft, main axis, valve rod.
Mechanical parts - connecting rod, bolt and nut.
Multidiameter shaft, pressure vessel.
PRODUCT PROFILE & DIMENSIONS
Round bar / rod / disc (diameter): 6.0 to 850 mm
Square bar / flat bar: 10 to 600 mm
Length: random length or based on the customer's special requirement.
Round bar / rod / disc (diameter): 6.0 to 850 mm
Square bar / flat bar: 10 to 600 mm
Length: random length or based on the customer's special requirement.
Heavy/middle plate via hot rolled: T6 ~ 400 X W50 ~ 1200 X L1000 ~ 5000 mm
Sheet steel via cold rolled: T0.5 ~ 6 X W15 ~ 1000 X L1000 ~ 2000 mm
Steel strip via cold rolled: T0.3 ~ 3 X W10 ~ 200 X L mm (or in coil form)
Forging piece: stepped shafts, and other different shapes based on OEM.
Sheet steel via cold rolled: T0.5 ~ 6 X W15 ~ 1000 X L1000 ~ 2000 mm
Steel strip via cold rolled: T0.3 ~ 3 X W10 ~ 200 X L mm (or in coil form)
Forging piece: stepped shafts, and other different shapes based on OEM.
TECHNICAL SALES ASSISTANCE
If you meet further on any technical enquiry, pleased to EMAIL our resident team of qualified production engineers. Email: sales@ccsteels.com.
If you meet further on any technical enquiry, pleased to EMAIL our resident team of qualified production engineers. Email: sales@ccsteels.com.
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