Forged Alloy steel grade 39NiCrMo3

Supply Specifications:

Standard: Din-En10083-3, En10250/3
Size Range: 180-710mm
Dia Tolerance: -0/+3mm (Rough Turned Surface)

Length: 3-5.8m

Heat Treatment: Quenched And Tempered

Chemical Composition:

C 0.37-0.44

Mn 0.50-0.80

Si 0.17-0.37

P 0.025 Max

S  0.035 Max

Cr 0.60-0.90

Ni 1.25-1.65

Mo 0.15-0.25

Al 0.02 Min

Cu 0.25 Max

Ti 0.03max

H2 2.0ppm    

Mechanical Properties:

Hardness: Hb195-240

Grain Size: 5 Or Finer As Per ASTM E112

Reduction Ratio: 1 To 4 Min

Production Process: EAF + LF + VD + Forged
UT Test: Ultrasonic Test According To Sep 1921-84 Grade 3 Class C/C
Micro-Purity: Acc. To ASTM E 45 Method A: Max A2-B2-C2-D2

Ends Of Bars Are Sawn. None Centre Hole Is Allowed.

MTC: Inspection Certificates 3.1 According To En 10204 – 2004 With All Required And Obtained Values Of Present Specification.‐

Application: High Strength And Good Plasticity Products; Parts After Nitriding Such As Shaft, Gear, Fasterners.

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