No. 45 cast steel is chemically formed, the difference between No. 45 steel and cast steel

No. 45 Cast steel.

The chemical components are C, SI, MN, CR, NI, CU, and the specific percentages are as follows:

Chemical Composition Mass Fraction %|c:

Chemical Composition Mass Fraction %|si:

Chemical Composition Mass Fraction %|mn:

Chemical Composition Mass Fraction %|cr≤:

Chemical Composition Mass Fraction %|ni≤:

Chemical Composition Mass Fraction %|cu≤:

Heat treatment is recommendedNormalizing.

Heat treatment is recommendedQuench.

Mechanical properties. σb/mpa≥: 600

Mechanical properties. σs/mpa≥: 355

Mechanical properties. δ5(%)16

Mechanical properties. ψ(40

Mechanical properties. aku/j≥: 39

Steel delivery condition hardness HBS10 3000, |Unheat-treated steel: 229 steel delivery condition hardness HBS10 3000, |Annealed steel: 197 general foundry casting orders w** will have different demand instructions, the content is not the same, I hope mine can help you!

First, the chemical composition is different:

The grade of Yes Steel is a high-quality carbon structural steel, corresponding to the Japanese standard S45C, the American standard: 1045, and the German standard C45. It is characterized by higher strength and resistance to deformation than ordinary A3 steel.

2. Cast steel is a kind of casting alloy, with iron and carbon as the main elements, and the carbon content is between 0-2%.

Second, the use is different:

1. Designers must consider the performance of materials in three directions when designing some high-tech products, which highlights the advantages of castings. Steel castings are easy to make complex shapes and non-stress-concentrated components.

2. The recommended heat treatment system of 45 steel specified in the GB T699-1999 standard is 850 normalizing, 840 quenching and 600 tempering, and the performance achieved is 355MPa yield strength

By usage characteristics:

1. Casting tool steel. Casting tool steel can be divided into casting tool steel and casting mold steel.

2. Casting special steel. Cast special steel can be divided into cast loss stainless steel, cast skin-resistant hot steel, cast wear-resistant steel, cast nickel-based alloy, etc.

3. Cast steel for engineering and structure. Cast steel for engineering and structure can be divided into cast carbon structural steel and cast alloy structural steel.

4. Cast alloy steel. It can be divided into cast low alloy steel, cast medium alloy steel and cast high alloy steel.

Hello dear! We'll be happy to answer for you. Cast steel 45 manganese chemical composition A:

45 manganese steel belongs to high-quality carbon steel, the grade is 45Mn, chemical composition: carbon C: silicon Si:

Manganese mn:sulfur s: phosphorus p:

Chromium Cr: Nickel Ni: Copper Cu:

Mechanical Properties: Tensile Strength B (MPa): 620(63)Yield Strength S (MPa):

375(38)Elongation δ5 (%15Cross-sectional shrinkage 40 punch fighting power AKV (J): 39Impact toughness value kv (j cm2): 49(5)Hardness:

Unheat-treated 241HB; Annealed steel 217HB heat treatment process: 850 normalized, 840 quenched, 600 tempered 45mn medium carbon attack side auspicious steel, strength, toughness and hardenability are higher than 45 steel, after quenching and tempering treatment, good comprehensive mechanical properties can be obtained, cutting performance is good, but poor welding performance, low cold deformation plasticity, tempered brittleness tendency, generally used in the quenched and tempered state, can also be used in quenching and tempering or normalizing state. It is used in the manufacture of worn parts, such as rotating shafts, mandrels, crankshafts, flower key shafts, connecting rods, universal joint shafts, meshing rods, gears, clutch discs, bolts, nuts, etc.

Q345 is a steel material. It is a low-alloy steel, which is widely used in bridges, vehicles, ships, construction, pressure vessels, special equipment, etc. "Q" means yield strength, and Q345 means that the yield strength of this steel is 345MPa.

Prechem components Q345a: c, mn, si, p, s; q345b：c≤，mn ≤，si≤，p≤，s≤；q345c：

c≤，mn ≤，si≤，p≤，s≤，al≥；q345d：c≤，mn ≤，si≤，p≤，s≤，al≥；Q345E:C,mn Huisheng,Si,P,S,Al; Q345a, b, c, d, and e all contain NB, and V, Ti, Cr, Ni, and Mo will reduce their yield value with the increase of the thickness of the material.

And the domestic one may be less than 345, so the strength must be less than 345 when the mechanical design is made, otherwise there will be problems.

Dear, I'm glad to answer for you: Can cast iron cast steel with a hardness of 10 on No. 45 A: Good morning, dear! <>

The wrong 45 steel is harder than cast iron Brinell, and the Brinell hardness test uses two types of indenters: quenched steel and cemented carbide balls. When using quenched steel balls to press the ante head, only materials with a hardness of less than 450HB can be tested; When the cemented carbide ball is used as the indenter, the material below 650HB can be tested, because there is a certain difference in the hardness of the two types of indenter, so in fact, when the hardness value of the measured material exceeds 350HB, the test results measured by the core ridge of the quenched steel ball and the cemented carbide ball are obviously different. When the hardness value of the material exceeds 350HB, the Brinell hardness value measured by cemented carbide balls is higher than that measured by quenched steel balls, and the difference between the two increases with the increase of hardness.

First, the nature is different.

No. steel: No. 45 steel generally refers to 45 steel, and 45 steel is the name in GB, also called "oil steel".

2. Cast steel: steel specially used for the manufacture of steel castings.

Second, the characteristics are different:

No. steel: the majority of spot hot-rolled in the market; cold-rolled gauge mm). The cold plasticity of the steel is general, annealing and normalizing are slightly better than those when quenched and tempered, and it has higher strength and better machinability.

2. Cast steel: When the strength requirements of the castings are high and the cast iron cannot meet the requirements, cast steel should be used. However, the fluidity of molten steel in cast steel is not as good as that of cast iron, so the thickness of the cast structure should not be too small, and the shape should not be too complex.

Third, the use is different.

No. steel: Mainly used to support transmission parts, transmit torque and bear load. Shaft parts are rotating body parts, the length of which is greater than the diameter, and are generally composed of the outer cylindrical surface, conical surface, inner hole and thread of the concentric shaft and the corresponding end face.

2. Cast steel: it can be used in a variety of working conditions, and its mechanical properties are better than those of other alloy castings; Steel castings should, in principle, be preferred when high tensile strength or dynamically loaded components are required, important pressure vessel castings and core components that are subjected to heavy loads at low or high temperatures.

Cast steel is a general term, divided into carbon steel, alloy steel, and stainless steel. Carbon steel is divided into ZG15, ZG25, ZG35, and steel is a kind of cast steel.

One is tool hard straight steel and the other is ductile iron type steel.

These two are not a division standard, 45 steel is divided by carbon content, and cast steel is divided by casting.

Cast steel: Cast steel is a general term for iron-based alloys used to produce castings that do not undergo eutectic transformation during the solidification process. A type of cast alloy. Cast steel is divided into three categories: cast carbon steel, cast low alloy steel and cast special steel.

45 steel is the name in GB, also called "oil steel". The market is mostly spot hot-rolled; Between cold-rolled specifications. Medium carbon quenched and tempered structural steel is commonly used. ‍

The steel is medium carbon hail lead steel, and the cast steel can be processed from Tuanyan Tong 45 steel, or it can be processed from other steel grades. 45 Steel can be cast into the form of cast steel, can also be processed into the form of forgings, can also be processed into the form of sheets, and can also be processed into the form of pipes.

Cast steel 35, i.e. ZG 270-500:

Medium carbon cast steel has certain toughness and plasticity, high strength and hardness, good machinability, acceptable weldability, and poor casting performance than low carbon steel.

ZG 270-500 Applications:

It is widely used in the production of flywheels, vehicle couplers, hydraulic press working cylinders, frames, steam hammer cylinders, bearing seats, connecting rods, boxes, and crank turns.

Mechanical properties of ZG 270-500:

Yield point ós or yield strength ó 270

Tensile strength ób mpa 500

Elongation δ (18

According to the contract, the section shrinkage rate (25

According to the contract, the impact absorption work AK J 22

Impact toughness AK (J CM2) 35ZG 270-500 chemical composition according to the contract:

Maximum element content (mass fraction) (%CSI

MNSP Residual Elements - The total amount of residual elements does not exceed, and if necessary, the residual elements may not be analyzed.

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