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

• Customization: Available
• After-sales Service: Support
• Warranty: Lifetime Warranty
• Model NO.: EN26 826M40
• Standard: AISI, ASTM, GB, JIS, DIN, BS
• Technique: Forged/Hot Rolled/Cold Drawn
• Surface Treatment: Polished
• Alloy: Alloy
• Special Use: Free Cutting Steel
• Certificate: ISO, ABS, BV, CCS, Dnv, Lr, Gl, Mill Certificate
• Quality Inspection: Ut, Chemical Composition, Physical Properties/SGS
• Siz: Dia. 10-1500mm, Length: 3000-6000mm
• Heat Treatment: Quenched, Tempered, Annealed
• Surface Require: Black, Grinding, Bright, Polish
• Delivery Condition: Hot Rolled, Forged, Eaf+Lf+Vd
• Transport Package: Seaworthy Packing/Wooden Box or at Client′s Requir
• Specification: Customized
• Trademark: OEM & ODM
• Origin: China
• HS Code: 7228600000
• Production Capacity: 1000 Ton/Month

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

Country	Australia	Germany	Britain
Standard	X1444	EN10250	BS970
Grade	X9940	40NiMoCr10-5/1.6745	EN26/826M40

 
chemical composition

Grade	C	Si	Mn	P	S	Cr	Mo	Ni
EN26	0.36-0.44	0.1-0.4	0.45-0.7	0.04	0.04	0.5-0.8	0.45-0.66	2.3-2.8
1.6745	0.36-0.44	0.1-0.4	0.45-0.7	0.025	0.015	0.5-0.8	0.45-0.65	2.3-2.8
X9940	0.36-0.44	0.1-0.4	0.45-0.7	0.025	0.015	0.5-0.8	0.45-0.65	2.3-2.8

 
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

Size	Round	Dia 6-1200mm
	Plate/Flat/Block	Thickness 6mm-500mm
		Width 20mm-1000mm
Heat treatment	Normalized ; Annealed ; Quenched ; Tempered
Surface condition	Black; Peeled; Polished; Machined; Grinded; Turned; Milled
Delivery condition	Forged; Hot rolled; Cold drawn
Test	Tensile strength, Yield strength, elongation, area of reduction, impact value, hardness, grain size, ultrasonic test, US inspection, magnetic particle testing, etc.
Payment terms	T/T;L/C;/Money gram/ Paypal
Trade terms	FOB; CIF; C&F; etc..
Delivery time	30-45 days
Application	EN26 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
Grade	AISI  /ASTM	DIN (W.Nr)	JIS	EN/ BS	GB
DC53	higher than D2		SKD11	XW-5	Cr8Mo2Vsi
D2	D2	1.2379	SKD11	BD2	CR12MO1V1
Cr12MoV					CR12MOV
D3	D3	1.2080	SKD1	BD3	CR12
O1	O1	1.2510	SKS3		9CRWMN
HMD5		HMD5			7CrSiMnMoV
5CrNiMo	L6	55NiCrMoV6	SKT4		5CrNiMo
52100	52100	1.3505		EN31	GCR15
HOT WORK TOOL STEEL
H13	H13	1.2344/1.2342	SKD61/DAC	8407	4CR5MOSIV1
FDAC		1.2347	FDAC		FDAC
H11	H11	1.2343	SKD6		H11
3Cr2W8V	H21	1.2581/ X30WCrV93	SKD5	BH21	3CR2W8V
PLASTIC MOULD STEEL
P20	P20	1.2311	HPM7/PX88	618	3CR2MO
718	P20+NI	1.2738	PX4/PX5	718	3CR2NIMO
S136	420	1.2083	S-STAR	S136	4CR13
NAK80	P21 /P20+S	1.2312	NAK80		15NI3MN
HIGH SPEED STEEL
M2	M2		SKH51		W6MO5CR4V2
M42	M42	S2-10-1-8	SKH59		W2MO9CR4VCO8
ALLOY STRUCTURE STEEL
Grade	AISI  /ASTM	DIN (W.Nr)	JIS	EN/ BS	GB
5120	5120	1.7027 /21Cr4	SCr420		20Cr
530M40 /5140	530M40 /5140	1.7035 /41Cr4	SCr440		40Cr
5145	5145		Scr445		45CR4
4118	4118	1.7243 /18CrMo4	SCM418 / SCM420		20CrMo
4135	4130	1.7218 /25CrMo4	SCM430	708A25/ 708M25	30CrMo
4140	4140	1.7225 /42CrMo4	SCM440	EN19/ 709M40	42CrMo
4340	4340	1.6582/ 34CrNiMo6	SNCM 439/ SNCM8	EN24/ 817M40	40CrNi2Mo
8620	8620	1.6523/ 21NiCrMo2	SNCM220	805M20	20CrNiMo
CARBON STEEL
20	1020	C22. CK22	S20C	EN3B /070M20	20
35	1035	C35.CK35	S35C		35
45	1045	C45.CK45	S45C	EN8D/C45E	45
50	1050	CK53	S50C	EN9/070M55	50
Q355		S355J   /ST52		EN14	Q355
30Mn	1030.1033		S30C		30Mn
30Mn2	1330	30Mn5	SMn433h		30Mn2
STAINLESS STEEL
steel grades: 304, 304L, 316, 316L, 321, 410 430, 431, 2205, 2304, 2507. F53, F55

 

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