Standard name: carbon steel forgings for pipe parts.
Because only one type of carbon steel forging is specified in this standard, A105 is also considered as a carbon steel grade of forging.
A105 is also a material code, which belongs to special steel and is a cold forged steel.
A105 is a low carbon steel forging, similar to 20 steel. There are two standards, one is the American standard ASTM A105/A105M Carbon Steel Forgings for Piping Components, and the other is the Chinese standard GB/T12228-2006 Technical Conditions for Carbon Steel Forgings for General Purpose Valves.
Material grade: A105 Standard: ASTM A105 Carbon steel forgings for pipe system components Country and region: USA steel group: structural steel comparison: 1.0402 EuropeanUnion/EN comparison 1.0406 EuropeanUnion/EN comparison 1.0477 EuropeanUnion/EN comparison 1.0478 EuropeanUnion/EN comparison 1.0501 EuropeanUnion/EN comparison
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
The mechanical properties are between 20 # forged steel and 16Mn forged steel.
Mechanical properties (Mpa)
Tensile strength:（ σ b）≥485Mpa
Yield strength（ σ s）≥250Mpa
Rear elongation（ δ）≥ 22%
Reduction of area（ ψ）≥ 30%
Hardness ≤ HB187
A105 carbon structural steel
A105 is the American ASTM standard number, ASTM A105/A105M carbon steel forgings for pipe components, and A represents ordinary carbon structural steel. It belongs to special steel and is a kind of cold forged steel. A105 is a low carbon steel forging, similar to 20 steel.
Note: In the pipeline system, generally A105 can replace No. 20, but No. 20 cannot completely replace A105, because the strength difference is still large. However, the stress corrosion cracking (SCC) resistance of A105 is slightly worse than that of No. 20.
A105 What material is different from 20 steel
A105 is a low carbon steel forging. The carbon content of carbon structural steel is about 0.05%~0.70%, and some can be as high as 0.90%. A105 is the American ASTM standard number, and A represents ordinary carbon structural steel. In this standard, only one type of carbon steel forging is specified, and A105 is also considered as a carbon steel grade of forging. A105 is also a material code, which belongs to special steel and is a cold forged steel. A105 is a low carbon steel forging, similar to 20 steel. There are two standards, one is the American standard ASTM A105/A105M Carbon Steel Forgings for Piping Components, and the other is the Chinese standard GB/T12228-2006 Technical Conditions for Carbon Steel Forgings for General Purpose Valves. The carbon content of carbon structural steel is about 0.05%~0.70%, and some can be as high as 0.90%. In the pipeline system, generally A105 can replace No. 20, but No. 20 cannot completely replace A105, because the strength difference is still large. However, the stress corrosion cracking (SCC) resistance of A105 is slightly worse than that of No. 20.
It can be divided into ordinary carbon structural steel and high-quality carbon structural steel. It has many uses and uses a large amount. It is mainly used in railway, bridge, various construction projects, manufacturing various metal components that bear static loads, and unimportant mechanical parts and general weldments that do not need heat treatment.
Post time: Feb-16-2023
