SHANGHAI UNITE STEEL
One-stop Brand Service Provider For Globle Machinery And Petrochemical Enterprise And Special Steel Distributor.
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826M31/X9931/En25 Professional forged steel shaft/ forged steel part for mechnical purpose, OD: 80-1200mm
APPLICATIONS:
X9931 is suitable for the most severe duties where freedom from temper brittleness is necessary. It has high strength and toughness in large sections. Applications include heavy drive shafts, axles, gears, excavator pins, automotive, and general, engineering applications, such as Shafts, connecting rods, pump and gear shafts, Die Holder Blocks, and long wall coal mining roof support pins.
RELATED SPECIFICATIONS:
Australia AS 1444-2007 X9931
Germany W.Nr 1.6743 32NiCrMo10 4
Great Britain BS970: Part 3: 1991 826M31
BS970: 1955 EN25
Chemical Composition %:
Carbon 0.37-0.44
Silicon 0.17-0.37
Manganese 0.50-0.80
Phosphorus 0.04 max
Sulphur 0.04 max
Chromium 0.60-0.90
Molybdenum 0.15-0.25
Nickel 1.25-1.85
Process: EAF+LF+VOD+Forged+Heat Treatment(optional)
SIZE RANGE:
Round:
Hot Forged: 80mm-1200mm
SURFACE FINISHES:
Black, Peeled K12, Cold Drawn, Turned & Polished H10, H11, Precision Ground H9, H8
Test: Ultrasonic test according to SEP 1921-84 3Cc
Forging
Heat to 1150 oC - 1200 oC maximum, hold until temperature is uniform throughout the section.
Do not forge below 850 oC.
Following forging operation the work piece should be cooled as slowly as possible in sand or dry lime etc..
Flanged shafts, crankshafts and forged step shafts are used in a wide variety of industries including oil and gas exploration, machinery, gear manufacturing, aircraft and aerospace, energy and power generation, defense, automotive, heavy industrial, manufacturing, general metalworking, petroleum and chemical, mining, engine and turbine, ship building, construction, fabricated metal, pulp and paper, and food processing
Shanghai unite steel, as an ISO registered forging manufacturer, has a vast inventory (300 alloys & grades) on the floor which will aid you in the quickest deliveries, high quality and extremely competitive products!
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