DIN 40nimocr10-5/1.6745 BS En26 826m40 Hot Rolled Forged Alloy Steel Round Bar

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Zhonghe Steel (Tianjin) Co., Ltd.

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EN26 826M40
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Structural Steel
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Ut, Chemical Composition, Physical Properties/SGS
Dia. 10-1500mm, Length: 3000-6000mm
Quenched, Tempered, Annealed
Black, Grinding, Bright, Polish
Hot Rolled, Forged, Eaf+Lf+Vd
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7228600000
Product Description
Product Description


DIN 40NiMoCr10-5/1.6745 BS EN26 826M40 Hot Rolled Forged Alloy Steel 
 

826M40 steel is still often referred to as EN26 steel - its equivalent grade under the previous BS 970: 1955 standard.

826M40 grade steel is a 2.5% nickel-chromium-molybdenum through hardening steel which has a high hardenability.

It may be treated in relatively large section sizes to produce tensile strengths ranging from 850 to over 1550 N/mm² combined with good ductility and resistance to stock.

Due to its high molybdenum content, the steel may normally be tempered in the range 300-550C without serious loss of impact values.

Good mechanical properties at low temperature can also be obtained.
 
Steel equivalent

CountryAustraliaGermanyBritain
StandardX1444EN10250BS970
GradeX994040NiMoCr10-5/1.6745EN26/826M40
 
chemical composition
GradeCSiMnPSCrMoNi
EN260.36-0.440.1-0.40.45-0.70.040.040.5-0.80.45-0.662.3-2.8
1.67450.36-0.440.1-0.40.45-0.70.0250.0150.5-0.80.45-0.652.3-2.8
X99400.36-0.440.1-0.40.45-0.70.0250.0150.5-0.80.45-0.652.3-2.8
 
mechanical properties 

    The mechanical properties mainly include tensile strength, yield strength, elongation, area or reduction, hardness, impact value, non-metalic inclusion etc. Different heat treatment, the mechanical properties will be different, such as normalized, tempered, QT. If you want to know the properties, kindly contact the salesman.

 

overviews
SizeRoundDia 6-1200mm
Plate/Flat/BlockThickness
6mm-500mm
Width
20mm-1000mm
Heat treatmentNormalized ; Annealed ; Quenched ; Tempered
Surface conditionBlack; Peeled; Polished; Machined; Grinded; Turned; Milled
Delivery conditionForged; Hot rolled; Cold drawn
TestTensile strength, Yield strength, elongation, area of reduction, impact value, hardness, grain size, ultrasonic test, US inspection, magnetic particle testing, etc. 
Payment termsT/T;L/C;/Money gram/ Paypal
Trade termsFOB; CIF; C&F; etc..
Delivery time30-45 days
ApplicationEN26 alloy steels are used for  Axles, Connecting Rods, Die Holders, Hydraulic Shafts, Spindles, Motor Shafts, Pins, Rams, Rolls, Sockets, Tool Holders, Torsion Bars etc..

 

Heat Treatment
Annealing
    Heat to 790 oC - 840 oC, hold until temperature is uniform throughout the section and cool in furnace.
Flame or Induction Hardening
    EN26 hardened and tempered bar can be further surface hardened by either the flame or induction hardening methods resulting in a case hardness in excess of Rc 50.
Parts should be heated as quickly as possible to the austenitic temperature range (820 oC - 850 oC) and required case depth followed by an immediate oil or water quench, depending upon hardness required, workpiece size/shape and quenching arrangements.Following quenching to hand warm, most components should be tempered between 150 oC - 200 oC to remove quenching stresses in the case. This will have little effect on case hardness.
Hardening  

  Heat to 820 oC - 850 oC, hold until temperature is uniform throughout the section, soak for 10 - 15 minutes per 25 mm section, and quench in oil, water, or polymer as required. Temper immediately while still hand warm.
Nitriding   

    EN26 hardened and tempered bar can also be successfully nitrided, giving a surface hardness of up to Rc 60. Nitriding is carried out at 490 oC - 530 oC, followed by slow cooling (no quench) reducing the problem of distortion. Parts can therefore be machined to near final size, leaving a grinding allowance only. The tensile strength of the core is usually not affected since the nitriding temperature range is generally below the original tempering temperature employed.N.B. Nickel is inert to the action of nitrogen and in general resists its diffusion into steel, and this can result in a lower case hardness or longer nitriding cycle times for steels containing nickel such as EN26.
Stress Relieving
    Heat to 640 oC - 660 oC, hold until temperature is uniform throughout the section, soak for 1 hour per 25 mm section, and cool in still air.
Tempering    

    Re-heat to 450 oC - 660 oC as required, hold until temperature is uniform throughout the section, soak for 1 hour per 25 mm of section, and cool in still air.N.B.Tempering should be avoided if possible within the range 250 oC - 450 oC due to temper brittleness.

 

Delivery condition
    For hot forged rolled bar, usually the delivery condition is hot forged or rolled, annealed/QT, rough turned/Black surface.
    For hot forged or hot rolled bar, usually the delivery condition is hot rolled, annealed/QT, Black surface.
    For hot forged plate, usually the delivery condition is hot forged, annealed/QT, milled surface/Black surface
    For hot rolled plate, usually the delivery condition is hot rolled, annealed/QT, black surface.

 
Main Material
 
COLD WORK TOOL STEEL
GradeAISI  /ASTMDIN (W.Nr)JISEN/ BSGB
DC53higher than D2 SKD11XW-5Cr8Mo2Vsi
D2D21.2379SKD11BD2CR12MO1V1
Cr12MoV    CR12MOV
D3D31.2080SKD1BD3CR12
O1O11.2510SKS3 9CRWMN
HMD5 HMD5  7CrSiMnMoV
5CrNiMoL655NiCrMoV6SKT4 5CrNiMo
52100521001.3505 EN31GCR15
HOT WORK TOOL STEEL
H13H131.2344/1.2342SKD61/DAC84074CR5MOSIV1
FDAC 1.2347FDAC FDAC
H11H111.2343SKD6 H11
3Cr2W8VH211.2581/ X30WCrV93SKD5BH213CR2W8V
PLASTIC MOULD STEEL
P20P201.2311HPM7/PX886183CR2MO
718P20+NI1.2738PX4/PX57183CR2NIMO
S1364201.2083S-STARS1364CR13
NAK80P21 /P20+S1.2312NAK80 15NI3MN
HIGH SPEED STEEL
M2M2 SKH51 W6MO5CR4V2
M42M42S2-10-1-8SKH59 W2MO9CR4VCO8
      
ALLOY STRUCTURE STEEL 
GradeAISI  /ASTMDIN (W.Nr)JISEN/ BSGB
512051201.7027 /21Cr4SCr420 20Cr
530M40 /5140530M40 /51401.7035 /41Cr4SCr440 40Cr
51455145 Scr445 45CR4
411841181.7243 /18CrMo4SCM418 / SCM420 20CrMo
413541301.7218 /25CrMo4SCM430708A25/ 708M2530CrMo
414041401.7225 /42CrMo4SCM440EN19/ 709M4042CrMo
434043401.6582/ 34CrNiMo6SNCM 439/ SNCM8EN24/ 817M4040CrNi2Mo
862086201.6523/ 21NiCrMo2SNCM220805M2020CrNiMo
CARBON STEEL 
201020C22. CK22S20CEN3B /070M2020
351035C35.CK35S35C 35
451045C45.CK45S45CEN8D/C45E45
501050CK53S50CEN9/070M5550
Q355 S355J  /ST52 EN14Q355
30Mn1030.1033 S30C 30Mn
30Mn2133030Mn5SMn433h 30Mn2
STAINLESS STEEL 
steel grades: 304, 304L, 316, 316L, 321, 410 430, 431, 2205, 2304, 2507. F53, F55
 
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