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
Element | Content (%) |
---|---|
Chromium, Cr | 0.80 - 1.10 |
Manganese, Mn | 0.75 - 1.0 |
Carbon, C | 0.380 - 0.430 |
Silicon, Si | 0.15 - 0.30 |
Molybdenum, Mo | 0.15 - 0.25 |
Sulfur, S | 0.040 |
Phosphorous, P | 0.035 |
Iron, Fe | Balance |
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.
Properties | Metric | Imperial |
---|---|---|
Tensile strength | 655 MPa | 95000 psi |
Yield strength | 415 MPa | 60200 psi |
Bulk modulus (typical for steel) | 140 GPa | 20300 ksi |
Shear modulus (typical for steel) | 80 GPa | 11600 ksi |
Elastic modulus | 190-210 GPa | 27557-30458 ksi |
Poisson's ratio | 0.27-0.30 | 0.27-0.30 |
Elongation at break (in 50 mm) | 25.70% | 25.70% |
Hardness, Brinell | 197 | 197 |
Hardness, Knoop (converted from Brinell hardness) | 219 | 219 |
Hardness, Rockwell B (converted from Brinell hardness) | 92 | 92 |
Hardness, Rockwell C (converted from Brinell hardness. Value below normal HRC range, for comparison purposes only) | 13 | 13 |
Hardness, Vickers (converted from Brinell hardness) | 207 | 207 |
Machinability (based on AISI 1212 as 100 machinability) | 65 | 65 |
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.
Properties | Metric | Imperial |
---|---|---|
Density | 7.85 g/cm3 | 0.284 lb/in³ |
Melting point | 1416°C | 2580°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 Name | Alloy Steel Sheet/Plate |
Standard | ASTM, AISI, SUS, JIS, EN, DIN, BS, GB, etc. |
Material | Q195, Q215,Q235,Q345,ST37, A36,45# ,16Mn, SPHC,SGCC,CGCC,SS400, SAE1008, SAE1006 |
Thickness | Hot Rolled Thickness:2.75mm-100mmCold Rolled Thickness:0.2mm-3mmAs Your Request |
Width | 45mm-2200mm, As Your Request |
Technique | Hot rolled / cold rolled |
Surface | Bare, Black, Oiled, Shot Blasted, Spray Paint, Coated, Galvanized, or as Your Request |
Coil ID | 508-610mm or as your request |
Coil Weight | 8 20 Tons or as per your request |
Application | Construction, machinery manufacturing, container manufacturing, shipbuilding, bridges, etc. |
Packing | Standard 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 GB | ISO | Former Soviet Union гOCT | Germany DIN | United States | Japan JIS | U.K. | France | ||
ASTM | UNS | AISI | BS | NF | |||||
20Mn2 | 20Mn6 | 20г2 | 20Mn5 | G13200 | 1320 | SMn420 | 150M19 | 20M5 | |
30Mn2 | 28Mn6 | 30г2 | 28Mn6 | G13300 | 1330 | SMn433 | 150M28 | 32M5 | |
35Mn2 | 36Mn6 | 35г2 | 36Mn6 | G13350 | 1335 | SMn433 | 150M36 | 35M5 | |
40Mn2 | 42Mn6 | 40г2 | G13400 | 1340 | SMn438 | 40M5 | |||
45Mn2 | 45г2 | 46Mn7 | G13450 | 1345 | SMn443 | 45M5 | |||
50Mn2 | 50г2 | 50Mn7 | 55M5 | ||||||
20MnV | 17MnV6 | ||||||||
30Mn2MoW | |||||||||
27SiMn | 27Cг | 27MnSi5 | |||||||
35SiMn | 35Cг | 37MnSi5 | 38Ms5 | ||||||
42SiMn | 42Cг | 46MnSi4 | 41s7 | ||||||
20SiMn2MoV | |||||||||
25SiMn2MoV | |||||||||
37SiMn2MoV | |||||||||
40B | 35B2 | G50401 | 50B40 | ||||||
45B | 45B2 | G50461 | 50B46 | ||||||
50B | G50501 | 50B50 | |||||||
40MnB | 40MnB4 | ||||||||
45MnB | 38MB5 | ||||||||
20Mn2B | 20MB5 | ||||||||
20MnMoB | |||||||||
15MnVB | |||||||||
20MnVB | |||||||||
20MnVB | |||||||||
20MnTiB | |||||||||
25MnTiBRE | |||||||||
20SiMnVB | |||||||||
15Cr | 15X | 15Cr3 | G51150 | 5150 | SCr415 | 527A17 | 12C3 | ||
15CrA | 15XA | ||||||||
20Cr | 20Cr4 | 20X | 20Cr4 | G51200 | 5120 | SCr420 | 527A19 | 18C3 | |
30Cr | 30X | 28Cr4 | G51300 | 5130 | SCr430 | 530A30 | 28C4 | ||
35Cr | 34Cr4 | 35X | 34Cr4 | G513500 | 5135 | SCr435 | 530A36 | 38C4 | |
40Cr | 41Cr | 40X | 41Cr4 | G51400 | 5140 | SCr440 | 530A40 | 42C4 | |
45Cr | 45X | G51450 | 5145 | SCr445 | 45C4 | ||||
50Cr | 50X | G51500 | 5150 | 50C4 | |||||
38CrSi | 38XC | ||||||||
12CrMo | 12XM | 12CrMo44 | 12CD4 | ||||||
15CrMo | 15XM | 15CrMo5 | SCM415 | 15CD4.05 | |||||
20CrMo | 18CrMo4 | 20XM | 20CrMo4 | G41190 | 4119 | SCM420 | CDS12 | 18CD4 | |
30CrMo | 30XM | G41300 | 4130 | SCM430 | CDS13 | 30CD4 | |||
30CrMoA | |||||||||
35CrMo | 34CrMo4 | 35XM | 34CrMo4 | G41350 | 4135 | SCM435 | 708A37 | 34CD4 | |
42CrMo | 42CrMo4 | 38XM | 42CrMo4 | G41400 | 4140 | SCM440 | 708A40 | 42CD4 | |
12CrMoV | 12XMф | ||||||||
35CrMoV | 35XMф | 35CrMoV5 | |||||||
12Cr1MoV | 12X1Mф | 13CrMoV4·2 | |||||||
25Cr2MoVA | 25X2MфA | 24CrMoV5·5 | |||||||
25Cr2Mo1VA | 25X2M1фA | ||||||||
20Cr3MoWVA | 20X3MBф | 21CrVMoW12 | (SAE)6470E | SACM645 | 905M35 | 40CAD6·12 | |||
38CrMoA1 | 41CrA1Mo74 | 38XM1фA | 41CrA1Mo7 | G61200 | 6120 | ||||
20CrV | 20Xф | 21CrV4 | (SAE)6140 | ||||||
40CrV | 40XфA | 42CrV6 | |||||||
50CrVA | 51CrV4 | 50XфA | 50CrV4 | G61500 | 6150 | SUP10 | 735A50 | 50CrV4 | |
15CrMn | 15Xг | 16MnCr5 | 16MC5 | ||||||
20CrMn | 20MnCr5 | 20Xг | 20MnCr5 | G51200 | 5120 | SMnC420 | 20MC5 | ||
40CrMn | 40Xг | 5140 | SMnC443 | ||||||
20CrMnSi | 20Xгс | ||||||||
25CrMnSi | 25Xгс | ||||||||
30CrMnSi | 30Xгс | ||||||||
30CrMnSiA | 30XгсA | ||||||||
35CrMnSiA | 35XгсA | ||||||||
20CrMnMo | 25XгM | 20CrMo5 | 4119 | SCM421 | 708M40 | 42CD4 | |||
40CrMnMo | 38XгM | SCM440 | |||||||
20CrMnTi | 18XгT | ||||||||
30CrMnTi | 30XгT | 30MnCrTi4 | |||||||
20CrNi | 20XH | 20NiCr6 | 3120 | 637M17 | 20NC6 | ||||
40CrNi | 40XH | 40NiCr6 | G31400 | 3140 | SNC236 | 640M40 | 35NC6 | ||
45CrNi | 45XH | 45NiCr6 | G31450 | 3145 | |||||
50CrNi | 50XH | 3150 | |||||||
12CrNi2 | 12XH2 | 14NiCr10 | 3215 | SNC415 | 14NC11 | ||||
12CrNi3 | 15CrNi13 | 12XH3A | 14NiCr14 | 3415 | SNC815 | 655M13 | 14NC12 | ||
20CrNi3 | 20XH3A | 22NiCr14 | 20NC11 | ||||||
30CrNi3 | 30XH3A | 31NiCr14 | 3435 | SNC631 | 653M31 | 30NC12 | |||
37CrNi3 | 37XH3 | 35NiCr18 | 3335 | SNC836 | 35NC15 | ||||
12Cr2Ni4 | 12X2H4A | 14NiCr18 | G33106 | 3310 | 659M15 | 12NV15 | |||
20Cr2Ni4 | 20X2H4A | 3320 | 20NC14 | ||||||
20CrNiMo | 20NiCrMo2 | 20XHM | 21NiCrMo2 | G86200 | 8620 | SNCM220 | 805M20 | 20NCD2 | |
40CrNiMoA | 40XHMA | 36NiCrMo4 | G43400 | 4340 | SNCM439 | 817M40 | 40NCD3 | ||
45CrNiMoVA | 45XMфA | SNCM447 | |||||||
18Cr2Ni4WA | 18X2H4BA | ||||||||
25Cr2Ni4WA | 25X2H4BA |