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Brand: JIADE
Model NO.: A369 2"-#4167
Special Use: High-strength Steel Plate, Wear Resistant Steel, Cold Heading Steel, Mold Steel
Application: Structural Steel Bar
Length: 5.8m-12m Or As Required
Steel Grade: 4130 4140
Thickness: 6 - 60 Mm
Outer Diameter: 21-1030mm
Materials: 10#-45#, 20mng, 25mng, 15crmog, 35CrMo, 16mn, etc
Transport Package: in Bundles or Wooden Box
Specification: 21.3-1219mm
Trademark: JIADE
Origin: China
HS Code: 7307930000
Production Capacity: 5000tons
Type: Round
Standard: Aisi, Astm, Din, Jis, Gb
Composition: Ferrous Steel Scrap
Technique: Hot Rolled
Shape: Round
Surface Treatment: Oil Painting
| Selling Units: | Piece/Pieces |
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How about 4130 Alloy Steel?
4130 Alloy Steel is a steel material with high strength and toughness,4130 Alloy Steel Pipe is known as SAE4130 or AISI4130 medium carbon low alloy steel.
4130Alloy Steel Pipe has high strength and toughness, high hardenability, in the oil critical quenching diameter of 15 ~ 70mm; the steel's thermal strength is also good, below 500 ℃ has sufficient high-temperature strength, but 550 ℃ when its strength drops significantly; when the alloying elements in the lower limit of the weld is quite good, but close to the upper limit of the weldability of the medium, and the need to preheat before welding to 175 ℃ above; steel cutability is good, cold deformation of the plasticity of the medium; heat treatment in the range of 300 ~ 350 ℃ in the first type of tempering brittleness; there is a tendency to form white spots.In the chemical industry is used to manufacture welded parts, plates and tubes consisting of welded structures and high pressure conduits containing nitrogen and hydrogen media working at temperatures of up to 250 ° C.
In the turbine, boiler manufacturing industry is used to In the turbine and boiler manufacturing industry, it is used to manufacture fasteners working below 450℃, flanges and flange covers under high pressure below 500℃.
Chemical composition:
Carbon C ：0.28～0.33
Silicon Si : 0.15～0.35
Manganese Mn: 0.40～0.60
Sulfur S ：allowed residual content≤0.040
Phosphorus P : Allowable residual content ≤0.035
Chromium Cr: 0.80～1.10
Nickel Ni: allowed residual content ≤ 0.030
Copper Cu: allow residual content ≤ 0.030
Molybdenum Mo：0.15～0.25
Mechanical properties:
Tensile strength σb (MPa): ≥930(95) Yield strength σs (MPa): ≥785(80)
Elongation δ5 (%): ≥12
Section shrinkage ψ (%): ≥ 50
Impact work Akv (J): ≥63
4130 Heat Treatment Methods:
1. Normalizing treatment:4130 is heated above zone temperature and then cooled to room temperature. This heat treatment reduces stress and improves toughness by homogenizing the organization.
2. Annealing treatment:4130 is heated to a temperature of approximately 850-900°C and then cooled at an appropriate rate. Annealing removes residual stresses and improves machinability and toughness.
3. Hardening treatment:4130 is heated to a temperature of approximately 815-870°C and then rapidly cooled, usually by water or oil quenching. This heat treatment method can increase the hardness and strength of 4130 alloy steel.
4. Tempering: After hardening,4130 can be tempered by heating it to a suitable temperature (usually between 150-600°C) followed by cooling at a suitable rate. Tempering relieves internal stresses and improves toughness and resistance to embrittlement.
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