SupplyA105Round Steel in Stock - WuxiA105Round steel specifications available: 13382217985
A105Round steel is available in the U.S.ASTMStandard NumberARepresents ordinary carbon structural steel. Standard name: Forging of carbon steel for pipeline components. As this standard only specifies one type of carbon steel forging,A105It is also a type of forging carbon steel grade.A105Material Code,It belongs to special steel, a type of cold forging steel.A105It is a low-carbon steel forgings, with20Steel is similar. There are two standards, one being the American standard, <ASTM A105/A105MCarbon Steel Forgings for Pipeline Components, and the other is the Chinese Standard <GB/T12228-2006 Carbon Steel Forged Fittings Technical Conditions
A105Round steel in stock, available in various specifications.A105Round steel, Huai Steel, Yong Steel, Lai Steel, Changqiang, products from Zhongtian.A105Hot rolled process, in compliance with U.S.ASTMStandard, fully replaceable domestically20#Steel, widely used in the manufacturing of high-pressure vessels, petrochemical piping, valves, and flanges, 6-meter fixed length (partly Xingcheng)7.2(Metered to size), with level 2 flaw detection ensured; customers may bring their own flaw detection equipment for inspection. Standard Name: Forging of Carbon Steel for Pipe Components. Since this standard specifies only one type of carbon steel forging,A105It's essentially a carbon steel grade for forgings.A105Material Code,It belongs to special steel, a type of cold-forged steel.A105It is a low-carbon steel forging.20Steel similar. There are two standards, one being the American standard 《ASTMA105/A105MCarbon Steel Forgings for Pipeline Components, and the second is the Chinese Standard <GB/T12228-2006Technical Conditions for Carbon Steel Forgings for General Valves.
Material Grade:A105Standard:ASTMA105Carbon Steel Forgings for Pipe Fittings - Countries and Regions:USASteel Group: Structural Steel Comparison1.0402EuropeanUnion/ENCompare1.0406EuropeanUnion/ENCompare1.0477EuropeanUnion/ENCompare1.0478EuropeanUnion/ENCompare1.0501EuropeanUnion/ENCaution: In the pipeline system, generally...A105May substitute20Number, but20Numbers cannot completely replaceA105However, there is still a significant difference in strength.A105Stress-Corrosion Cracking ResistanceSCCRatio20Number slightly inferior.
A105Round Steel Composition
C:≤0.35
Si:≤0.35
Mn:0.6-1.05
S:≤0.050
P:≤0.040，
Cu≤0.4
Ni≤0.4 Mo≤0.12
V≤0.08
Cr≤0.3
A105Round steel has mechanical properties lying between20Numbered Forged Steel16MnBetween Forged Steel. Mechanical PropertiesMpa )Tensile strength:（σb）≥485MpaYield Strength (σ)s）≥250Mpaelongation (δ) ≥22%Section reduction rate (ψ) ≥30%Hardness ≤HB187
A105Material heat treatment process:
1. Annealing procedure: Heat the steel parts toAc3+30~50Degrees orAc1+30~50Degree orAc1After the following temperatures (refer to relevant materials), generally cool down slowly with the furnace temperature.2.Proper Heat Treatment Procedure: Heat the steel parts toAc3OrAccmAbove30~50Cool at a slightly higher rate than the annealing rate after insulation.
2. Quenching operation method: Heat the steel parts to the phase transformation temperatureAc3OrAc1Above,保温 for a period, then rapidly cool in water, nitric salt, oil, or air. Purpose: Quenching is generally to achieve high hardness martensitic structure, while in some cases with high-alloy steels (such as stainless steel, wear-resistant steel), it is to obtain a single and uniform austenitic structure to enhance wear resistance and corrosion resistance.
3. Tempering procedure: Reheat the quenched steel parts toAc1At a certain temperature, after insulation, cool in air or oil, hot water, or water.
4. Quenching and tempering operation method: After quenching, the high-temperature tempering process is called quenching and tempering, which involves heating the steel part to a temperature higher than that during quenching.10~20Degrees of temperature, after insulation, quenched, then400~720Anneal at a specific temperature.
5. Time-sensitive Operation Method: Heat the steel parts to80~200Degree, thermal insulation5~20Hour(s) or more, then remove from the furnace and cool in the air. Purpose:1.Maintain the stable microstructure of the steel parts after quenching, to minimize deformation during storage or use.2.Reduce internal stress after quenching and grinding, ensuring stable shape and dimensions.
6. Remove after achieving uniform temperature and cooling to room temperature.
7. Flame Hardening Operation Method: Utilize a flame from oxygen-acetylene gas combustion to rapidly heat the surface of the steel workpiece, then immediately quench it by spraying water once the quenching temperature is reached.
8. Induction Heating Surface Quenching Procedure: Place the steel part into the inductor, generate an induced current on the surface of the steel, heat it to the quenching temperature in a very short time, then spray it with water for cooling.
9. Carbonitriding Process: Place the steel workpiece in the carbonitriding medium and heat to900～950Achieve and maintain temperature, allowing the steel surface to obtain a certain concentration and depth of carbon infiltration layer.
10 Nitriding Process: Utilizing in5．．～600Active nitrogen atoms released from the timed gas saturation the surface of the steelwork, forming a nitrided layer.
Components:
Solid solution: A solid-state metallic crystal in which the atoms (compounds) of one (or more) component(s) dissolve into the lattice of another component(s) while maintaining the lattice type of the latter, and it is divided into two types: interstitial solid solution and substitutional solid solution.
Solid Solution Strengthening: Due to solute atoms entering the interstices or nodes of the solvent crystal lattice, causing distortion, this results in an increase in the hardness and strength of the solid solution, a phenomenon known as solid solution strengthening.
Metallic compounds: A new phase formed by the interaction between the components of an alloy in specific proportions, which is usually represented by a chemical formula.
Mechanical mixture: A multiphase assembly obtained by mechanically combining two phases or more.
Ferrite: Carbon ina-FeInterstitial solid solution in (body-centered cubic iron).
Austenite: Carbon ing-FeInterstitial solid solution in (face-centered cubic iron).
Carbide: A stable compound formed by carbon and iron.Fe3c）。
Pearlitic structure: a mechanical composition of ferrite and cementiteF+Fe3c Carbon-containing0.77%）
High-Temperature Laves: A mechanical composition (containing carbon) of cementite and austenite4.3%）
