Alloy Steel Sheet Plate Hot Rolled Cold Rolled

4140, 4340, 5120, 6150, 8620 Alloy Steel Sheet Plate Hot Rolled Cold Rolled

A steel plate made of iron, carbon, molybdenum, nickel, titanium, chromium, manganese, and other elements is an alloy steel plate.

1. What is an alloy steel sheet/plate?

A steel plate made of iron, carbon, molybdenum, nickel, titanium, chromium, manganese, and other elements is an alloy steel plate. Alloy steel plates' physical characteristics, such as strength, toughness, and corrosion resistance, vary depending on the added elements. As a result, the aviation, aerospace, electronics, energy, and chemical industries all use alloy steel plates extensively.

Classification of alloy steel plates

Alloy steel plates can be classified into a wide range of varieties based on various additional elements, including molybdenum steel plates, chromium-molybdenum steel plates, nickel-chromium steel plates, etc. The right steel plate must be chosen based on specific requirements because different types of steel plates have varying physical qualities and application fields.

2. Chemical composition of alloy steel sheet/plate

ElementContent (%)
Chromium, Cr0.80 - 1.10
Manganese, Mn0.75 - 1.0
Carbon, C0.380 - 0.430
Silicon, Si0.15 - 0.30
Molybdenum, Mo0.15 - 0.25
Sulfur, S0.040
Phosphorous, P0.035
Iron, FeBalance

3. Mechanical properties of alloy steel sheet/plate

alloy steel sheet/plate is a crucial component of structural engineering because of its great strength, hardness, and resistance to corrosion. Alloy steel has a longer service life and comparatively superior wear and high-temperature resistance than regular steel. Alloy steel excels in producing some mechanical parts that are lightweight, high-strength, high-durability, and employed in high-temperature and high-pressure conditions due to its relatively good toughness and plasticity.

The high strength of alloy steel

Due to the presence of certain alloying elements, alloy steel has higher yield and tensile strengths than regular carbon steel. One of the most crucial metrics for assessing the effectiveness of alloy steel devices is its strength index. Due to its great strength, alloy steel is frequently utilized in the automotive, aerospace, and aviation industries.

The high wear resistance of alloy steel

The alloy elements in alloy steel can be used in different proportions to increase the hardness and wear resistance of alloy steel. These alloying elements can form high-hardness compounds in steel, thereby increasing the hardness and wear resistance of alloy steel. This high wear resistance makes alloy steel widely used in engineering machinery, mining equipment, ships, and other fields.

High toughness of alloy steel

Alloy steel's high toughness is a reference to its strong anti-fracture and anti-brittleness, or how difficult it is to break under force and load. Steel alloy is frequently used in the production of machinery, the oil industry, shipbuilding, and other industries. Among these, ship safety has significantly increased.

High-temperature resistance of alloy steel

Alloy steel alloy components may keep their mechanical properties at high temperatures and exhibit good high-temperature stability. Alloy steel can be utilized in high-temperature situations such as aerospace engines, stoves, and other sectors that require great stability in such environments since it can keep mechanical attributes like strength, hardness, and wear resistance there.

PropertiesMetricImperial
Tensile strength655 MPa95000 psi
Yield strength415 MPa60200 psi
Bulk modulus (typical for steel)140 GPa20300 ksi
Shear modulus (typical for steel)80 GPa11600 ksi
Elastic modulus190-210 GPa27557-30458 ksi
Poisson's ratio0.27-0.300.27-0.30
Elongation at break (in 50 mm)25.70%25.70%
Hardness, Brinell197197
Hardness, Knoop (converted from Brinell hardness)219219
Hardness, Rockwell B (converted from Brinell hardness)9292
Hardness, Rockwell C (converted from Brinell hardness. Value below normal HRC range, for comparison purposes only)1313
Hardness, Vickers (converted from Brinell hardness)207207
Machinability (based on AISI 1212 as 100 machinability)6565

4. Physical properties of alloy steel sheet/plate

Density, thermal conductivity, linear expansion coefficient, and other characteristics of alloy steel are physical characteristics. Alloy steel has a lower heat conductivity and a lower linear expansion coefficient than regular steel, but it has a higher density and a proportionally smaller degree of expansion.

PropertiesMetricImperial
Density7.85 g/cm30.284 lb/in³
Melting point1416°C2580°F

5. Specifications of alloy steel sheet/plate

Being a trustworthy alloy steel sheet/plate manufacturer and supplier, Shanghai Yinggui Metal Pbaructs Company aims to make manufacturing easier for our business partners. Shanghai Yinggui Metal offers 3120, 3150, 4130, 4140, 4340, 5120, 5140, 6150, 8620 etc.

Product NameAlloy Steel Sheet/Plate
StandardASTM, AISI, SUS, JIS, EN, DIN, BS, GB, etc.
MaterialQ195, Q215,Q235,Q345,ST37, A36,45# ,16Mn, SPHC,SGCC,CGCC,SS400, SAE1008, SAE1006
ThicknessHot Rolled Thickness:2.75mm-100mmCold Rolled Thickness:0.2mm-3mmAs Your Request
Width45mm-2200mm, As Your Request
TechniqueHot rolled / cold rolled
SurfaceBare, Black, Oiled, Shot Blasted, Spray Paint, Coated, Galvanized, or as Your Request
Coil ID508-610mm or as your request
Coil Weight8 20 Tons or as per your request
ApplicationConstruction, machinery manufacturing, container manufacturing, shipbuilding, bridges, etc.
PackingStandard Export packing(Plastic film in the first layer, the second layer is Kraft paper. Third layer is galvanized sheet)

6. Applications and characteristics of alloy steel sheet/plate

1. High strength

The high strength of alloy steel is one of its key characteristics. To offer alloy steel great durability and strength, high-temperature quenching, tempering, and normalizing operations are typically used. Due to this, alloy steel is frequently used in industries that involve significant loads, such as transportation, construction, and other industries.

2. High toughness

The ability of a material to retain its original shape despite external impact and deformation is referred to as toughness. Because alloy elements are added to steel in the right proportions, alloy steel offers great toughness. These components can strengthen the steel's structural integrity and increase its toughness, which increases the alloy steel's resistance to strain.

3. High wear resistance

Alloy steel's great wear resistance is mostly due to the addition of hardness elements like tungsten, molybdenum, etc. These substances make alloy steel more durable and stronger by raising its hardness. Due to its excellent wear resistance, alloy steel is crucial in industries including mining and mechanical processing.

4. Corrosion resistance

Due to the addition of corrosion-resistant alloy elements like molybdenum and chromium to the steel base, alloy steel is resistant to corrosion. These compounds have the ability to coat the steel surface with a shield that will protect it from acidic or alkaline liquids. As a result, alloy steel is frequently utilized in the shipbuilding and chemical industries, among other things.

5. Good heat resistance

Due to the insertion of thermally robust alloying elements like tungsten, molybdenum, etc. into the steel, alloy steel has good thermal strength. These components give alloy steel remarkable high-temperature resistance capabilities by allowing the steel to maintain its mechanical properties unchanged at high temperatures. As a result, alloy steel has crucial uses in high-temperature environments, including the production of gas turbines and aerospace engines, among others.

Main uses of alloy steel

1. Machine tool processing: Alloy steel has been extensively utilized in machine tool processing, including vehicle frames, cutting tools, and fixtures, due to its good cutting capabilities and hardness. 2. Manufacturing of automobiles: Parts like engine pistons and connecting rods, transmission gears and shafts, etc. frequently employ alloy steel. Due to its great strength, resistance to wear, and durability, alloy steel has better performance and a longer service life. 3. Aerospace industry: Due to its low specific gravity, high heat resistance, and high strength, alloy steel is widely employed in the aerospace industry. Turbine blades, shafts, and engine valves can all be produced with it. 4. Petrochemical sector: The superior qualities of alloy steel can significantly lengthen the service life and increase the reliability of equipment in the petrochemical industry. For instance, alloy steel is used to make vessels, pipe fittings, and valves for equipment used in everything from petrochemical facilities to oil refineries.

7. Main alloy steel product brand list

Comparison of Chinese and foreign grades of alloy steel
China GBISOFormer Soviet Union  гOCTGermany DINUnited StatesJapan JISU.K.France
ASTMUNSAISIBSNF
20Mn220Mn620г220Mn5
G132001320SMn420150M1920M5
30Mn228Mn630г228Mn6
G133001330SMn433150M2832M5
35Mn236Mn635г236Mn6
G133501335SMn433150M3635M5
40Mn242Mn640г2

G134001340SMn438
40M5
45Mn2
45г246Mn7
G134501345SMn443
45M5
50Mn2
50г250Mn7




55M5
20MnV

17MnV6





30Mn2MoW








27SiMn
27Cг27MnSi5





35SiMn
35Cг37MnSi5




38Ms5
42SiMn
42Cг46MnSi4




41s7
20SiMn2MoV








25SiMn2MoV








37SiMn2MoV








40B

35B2
G5040150B40


45B

45B2
G5046150B46


50B



G5050150B50


40MnB

40MnB4





45MnB







38MB5
20Mn2B







20MB5
20MnMoB








15MnVB








20MnVB








20MnVB








20MnTiB








25MnTiBRE








20SiMnVB








15Cr
15X15Cr3
G511505150SCr415527A1712C3
15CrA
15XA






20Cr20Cr420X20Cr4
G512005120SCr420527A1918C3
30Cr
30X28Cr4
G513005130SCr430530A3028C4
35Cr34Cr435X34Cr4
G5135005135SCr435530A3638C4
40Cr41Cr40X41Cr4
G514005140SCr440530A4042C4
45Cr
45X

G514505145SCr445
45C4
50Cr
50X

G515005150

50C4
38CrSi
38XC






12CrMo
12XM12CrMo44




12CD4
15CrMo
15XM15CrMo5


SCM415
15CD4.05
20CrMo18CrMo420XM20CrMo4
G411904119SCM420CDS1218CD4
30CrMo
30XM

G413004130SCM430CDS1330CD4
30CrMoA








35CrMo34CrMo435XM34CrMo4
G413504135SCM435708A3734CD4
42CrMo42CrMo438XM42CrMo4
G414004140SCM440708A4042CD4
12CrMoV
12XMф






35CrMoV
35XMф35CrMoV5





12Cr1MoV
12X1Mф13CrMoV4·2





25Cr2MoVA
25X2MфA24CrMoV5·5





25Cr2Mo1VA
25X2M1фA






20Cr3MoWVA
20X3MBф21CrVMoW12

(SAE)6470ESACM645905M3540CAD6·12
38CrMoA141CrA1Mo7438XM1фA41CrA1Mo7
G612006120


20CrV
20Xф21CrV4

(SAE)6140


40CrV
40XфA42CrV6





50CrVA51CrV450XфA50CrV4
G615006150SUP10735A5050CrV4
15CrMn
15Xг16MnCr5




16MC5
20CrMn20MnCr520Xг20MnCr5
G512005120SMnC420
20MC5
40CrMn
40Xг


5140SMnC443

20CrMnSi
20Xгс






25CrMnSi
25Xгс






30CrMnSi
30Xгс






30CrMnSiA
30XгсA






35CrMnSiA
35XгсA






20CrMnMo
25XгM20CrMo5

4119SCM421708M4042CD4
40CrMnMo
38XгM



SCM440

20CrMnTi
18XгT






30CrMnTi
30XгT30MnCrTi4





20CrNi
20XH20NiCr6

3120
637M1720NC6
40CrNi
40XH40NiCr6
G314003140SNC236640M4035NC6
45CrNi
45XH45NiCr6
G314503145


50CrNi
50XH


3150


12CrNi2
12XH214NiCr10

3215SNC415
14NC11
12CrNi315CrNi1312XH3A14NiCr14

3415SNC815655M1314NC12
20CrNi3
20XH3A22NiCr14




20NC11
30CrNi3
30XH3A31NiCr14

3435SNC631653M3130NC12
37CrNi3
37XH335NiCr18

3335SNC836
35NC15
12Cr2Ni4
12X2H4A14NiCr18
G331063310
659M1512NV15
20Cr2Ni4
20X2H4A


3320

20NC14
20CrNiMo20NiCrMo220XHM21NiCrMo2
G862008620SNCM220805M2020NCD2
40CrNiMoA
40XHMA36NiCrMo4
G434004340SNCM439817M4040NCD3
45CrNiMoVA
45XMфA



SNCM447

18Cr2Ni4WA
18X2H4BA






25Cr2Ni4WA
25X2H4BA






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4140, 4340, 5120, 6150, 8620 Alloy Steel Sheet Plate Hot Rolled  Cold Rolled

4140, 4340, 5120, 6150, 8620 Alloy Steel Sheet Plate Hot Rolled  Cold Rolled

4140, 4340, 5120, 6150, 8620 Alloy Steel Sheet Plate Hot Rolled  Cold Rolled

4140, 4340, 5120, 6150, 8620 Alloy Steel Sheet Plate Hot Rolled  Cold Rolled

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