SHANGHAI UNITE STEEL
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14NiCr14 Forged high alloy steel bar, forged steel bar, DIA110-1200mm, small MOQ
Steel group: Case hardening steel
Application: Highly stressed large sized components for aircraft and truck construction, and for general engineering purposes, e.g. gear wheels, cranks hafts, heavy-duty gear shafts.
Features: 20Cr2Ni4 is high intension of alloy cementation steel ,has excellent comprehensive mechanical property. It's hardenability and obdurability higher than 12CrNi3. It's excellent forgeability.
Related specifications:
Germany W.Nr 1.5752 DIN 14NiCr14
Great Britain BS970 – Part 3 – 1991 655 M13
BS970 – 1955 EN36A
GOST G55H13, G55M13
Japan JIS G 4052 SNC815H
JIS G 4102 SNC815
U.S.A. SAE 3310 9310
AISI E 3310 E9310
France 12NC15, 14NC12
Australia AS 1444-2007 – X3312/X3312H
UNS G33106/G93106
Quality Standard:
EN 10277 - 4 : 2008 Bright steel products. Technical delivery conditions. Case hardening steels
EN 10084 : 2008 Case hardening steels. Technical delivery conditions
Chemical Composition(%):
Carbon 0.17-0.23
Silicon 0.17 -0.37
Manganese 0.30-0.60
Chromium 1.25-1.65
Phosphorous 0.04 max
Sulphur 0.04 max
Nickel 3.25~3.65
Process: EAF+LF+VOD+Forged+Heat Treatment(optional)
SIZE RANGE:
Round:
Hot Forged: Dia 80mm-1200mm
SURFACE FINISHES:
Black, Peeled (K12), Cold Drawn, Turned & Polished (H10, H11), Precision Ground (H9, H8)
Ultrasonic test: According to SEP 1921-84
Range of application and heat treatment :
Cementation steel : gear wheels , crankshafts , gear components
Hardening : 830 - 850 °C (oil) Soft annealing : 620 - 650 °C Normalising : 830 - 860 °C
Certificate of Quality: issued in English, in addition the normal terms, production process, the mechanical property (yield strength, tensile strength, elongation and hardness), forged ratio, UT test result, Grain size, heat treatment methods and the sample of is shown on the Certificate of Quality.
Marking: Heat No. will be cold stamped and Steel grade, diameter (mm), length (mm), and the manufacturer LOGO and weight (kg) is painted