EN26 - 826M40 Black (As rolled, forged or heat treated)(ALLOY STEEL) (Direct hardening or nitriding) (Nickel/Chromium/Moly)
Equivalents:BS970 Part 1 1983, 826M40BS970 of 1955 EN26German W. Stoff No. 1.6745
CarbonSiliconManganeseNickelChromiumMolybdenum
= 0,36 - 0,44= 0,10 - 0,35= 0,45 - 0,70= 2,30 - 2,80= 0,50 - 0,80= 0,45 - 0,65
Characteristics:• A 6% allowance should always be made for removal of surface defects during machining• Machinability good• Ideal for heat treating to condition (U/60/70 ton tensile) or V 65/75 ton tensile• As with EN24, this material is ordered in the annealed, as rolled or as forged condition for machining. Subsequent heat treatment is used to achieve higher tensility. i.e. condition T, U, V, W, X, Y and Z• Some applications require this material to be heat treated to BS2772 Part 2 Grade 826M31
Typical Applications:Similar applications and uses as EN24 817M40 and for higher tensile requirementsSafety critical mining applicationsMining winder equipment partsBrake pinsTie rod ends
HeatTreatment
ConditionTons/SQ. inch
TensileStrengthRM MPA
Yield StressRE MPA
A min on5,65 So
HardnessHB
ImpactIZODFT.Lb
KCVJoules
LimitedRulingSection
mm
U
V
W
XYZ
60/7060/7065/7565/7570/8070/8075/8580/90100
925/1075925/10751000/11501000/11501075/12251075/12251150/13001225/1375
1550
740755835850925940
102010951235
12121212111110107
253525352030252510
269/331269/331293/352293/352311/375311/375341/401368/429
444
250150250150250150150150100
284228422235282811
Mechanical Properties
RP 0,2MPA
725740820835910925
100510801125
SulphurPhosphorus
= 0,040 max= 0,035 max
Chemical:Composition %
Turn bucklesHeavy duty mining head gearMain line railway armature shafts
Tel: +27 (0)11 865 4939. Fax: +27 (0)11 902 8995. e-mail: [email protected]
EN26 - 826M40
Product Information:
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