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En24 / 817m40 Forged Alloy Steel Bar / 1.6511 36CrNiMo4 En 24 Forged Ring

China En24 / 817m40 Forged Alloy Steel Bar / 1.6511 36CrNiMo4 En 24 Forged Ring, Find details about China Forged Round Bars, Steel Round Bars from En24 / 817m40 Forged Alloy Steel Bar / 1.6511 36CrNiMo4 En 24 Forged Ring

Model NO.
4340 Steel 36CrNiMo4 1.6511 EN24 817M40
Special Use
Mold Steel, Cold Heading Steel
Ut Test
Sep1921- Class C/C,D/D
PRO
Forged Steel Bars
Grades
AISI 4340 En24
MOQ
1PC
Trademark
Laiwu Xincheng
Transport Package
Standard Seaworthy
Specification
200-1000mm
Origin
China
HS Code
72284000
Model NO.
4340 Steel 36CrNiMo4 1.6511 EN24 817M40
Special Use
Mold Steel, Cold Heading Steel
Ut Test
Sep1921- Class C/C,D/D
PRO
Forged Steel Bars
Grades
AISI 4340 En24
MOQ
1PC
Trademark
Laiwu Xincheng
Transport Package
Standard Seaworthy
Specification
200-1000mm
Origin
China
HS Code
72284000
EN24 / 817M40 Forged Alloy Steel Bar / 1.6511 36CrNiMo4 EN 24 FORGED RING
AISI 4340 Steel / 36CrNiMo4 / 1.6511 / EN24 / 817M40 / SNCM439 Fogred Steel Round Bars

1.About 4340 Alloy Steel Bars:
4340 is a nickel-chromium-molybdenum alloy steel known for its toughness and its ability to attain high strengths in the heat-treated condition. It has very good fatigue resistance.

This alloy, 4340, may be heat treated to high strength levels while maintaining good toughness, wear resistance and fatigue strength levels, combined with good atmospheric corrosion resistance, and strength.
 

2. AISI 4340 Steel Specification and Relevant Standards

CountryUSABritainBritainJapan
StandardASTM A29EN 10250BS 970JIS G4103
Grades434036CrNiMo4/
1.6511		EN24/817M40SNCM 439/SNCM8

3. ASTM 4340 Steels And Equilvalents Chemical Composition

StandardGradeCMnPSSiNiCrMo
ASTM A2943400.38-0.430.60-0.800.0350.0400.15-0.351.65-2.000.70-0.900.20-0.30
EN 1025036CrNiMo4/
1.6511		0.32-0.400.50-0.800.0350.035<=0.400.90-1.200.90-1.20.15-0.30
BS 970EN24/817M400.36-0.440.45-0.700.0350.0400.1-0.401.3-1.71.00-1.400.20-0.35
JIS G4103SNCM 439/SNCM80.36-0.430.60-0.900.0300.0300.15-0.351.60-2.000.60-1.000.15-0.30
 

4. AISI Alloy 4340 Steel Mechanical Properties

Mechannical Properties

 

(Heat Treated Condition )

ConditionRuling section
mm		Tensile Strength MPaYield Strength
MPa		Elong.
%		Izod Impact
J		Brinell
Hardness
T250850-10006351340248-302
T150850-10006651354248-302
U100930-10807401247269-331
 
V631000-11508351247293-352
W301080-12309251141311-375
X301150-130010051034341-401
 
Y301230-138010801024363-429
Z301555-1125510444-

Thermal Properties

PropertiesMetricImperial
Thermal expansion co-efficient (20°C/68°F, specimen oil hardened,
600°C (1110°F) temper		12.3 µm/m°C6.83 µin/in°F
Thermal conductivity (typical steel)44.5 W/mK309 BTU in/hr.ft².°F


5.Forged Steel Size we can supply:

Forged Steel Round BarΦ85mm~1200mm
Forged Square steel Bar:150×150-800×800mm
Forged Flat Blocks:(150mm-800mm)*(200mm-800mm)
Forged Shaft and Forged RingAccording to Customer's drawing


5.Inspecting:
UT according toSEP1921 C/c, D/d, E/e, A388 or GB/T 6402, 
Spectral Tested, Microstructure Tested,Hardness Test,Macrostructure Test,

6.Delivery Condition:
Forged+black surface
Forged+rough machined
Forged+rough turned+QT/annealed/normalized
Surface condition: Black; Peeled; Polished; Machined; Grinded; Turned; Milled
7.Manufacture:EAF+LF+VD(Annealed,normalized,Quenched+Tempered,peeled,rough turned).
8.Heat Treatment: Normalized / Annealed / Quenched / tempered (optional)
 
En24 / 817m40 Forged Alloy Steel Bar / 1.6511 36CrNiMo4 En 24 Forged Ring
Main Grade we can supply for forged steel bars
Steel seriesRepresentative steel type
Carbon Steel seriesAISI 1020,1045,A36,S355JR,S355JO
Petroleum machinery seriesAISI4150,AISI4140,AISI4130,
30CrMo,4145H
Tool mold series1.2714,5CrMnMo,5CrNiMoV,
1.2738,1.2311,1.2312 1.2714 H13
Bearing series52100,GCr15,SUJ2
Marine series4140,42CrMo,SCM440,
709M40
Car seriesSAE8620,20CrNiMo,
SNCM220
Heavy-duty transmission series40CrNiMo,SNCM439,
SAE4340,EN24
Mining machinery series655M13,826M40,
25CrMo
Wind power gear series18CrNiMo7-6, 17CrNiMo6, 1.6582,1.6587,SAE8620
Wind power spindle series34CrNiMo6,817M40
Nitriding series20MnCr5,38CrMoAl,
31CrMoV9
Pressure vessel series15CrMo,13CrMo4-4
Metallurgical roll series21CrMoV511,W1.7225,
EN19,709M40

About our factory:
Our main products include Forged Steel Round Bar from Sizes 85mm to 1100mm, Forged Steel Square Bar from Sizes 150×150 to 800×800mm with various grade ;The largest production steel ingot 15T, mainly forged alloy steel, carbon steel and other materials. The annual output of forged round can reach 60,000 tons. The products are widely used and can be supplied to users in metallurgy, chemical, hydraulic, port and marine machinery The main equipment includes a 2000-ton hydraulic press, a 3-ton electro-hydraulic hammer, a 2.5-meter ring rolling machine, and is equipped with large and small traveling machines, metalworking lathes, and multiple large and small sawing machines. The company now has more than 100 sets of production equipment from a whole set of processes from blanking, heating, forging to heat treatment and machining.

En24 / 817m40 Forged Alloy Steel Bar / 1.6511 36CrNiMo4 En 24 Forged RingEn24 / 817m40 Forged Alloy Steel Bar / 1.6511 36CrNiMo4 En 24 Forged Ring
En24 / 817m40 Forged Alloy Steel Bar / 1.6511 36CrNiMo4 En 24 Forged Ring
En24 / 817m40 Forged Alloy Steel Bar / 1.6511 36CrNiMo4 En 24 Forged Ring
En24 / 817m40 Forged Alloy Steel Bar / 1.6511 36CrNiMo4 En 24 Forged Ring
En24 / 817m40 Forged Alloy Steel Bar / 1.6511 36CrNiMo4 En 24 Forged Ring
En24 / 817m40 Forged Alloy Steel Bar / 1.6511 36CrNiMo4 En 24 Forged Ring
En24 / 817m40 Forged Alloy Steel Bar / 1.6511 36CrNiMo4 En 24 Forged Ring
En24 / 817m40 Forged Alloy Steel Bar / 1.6511 36CrNiMo4 En 24 Forged Ring

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