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21-4N

21-4N angle bars, 21-4N flanges, Pipe Fitting, Steel Pipe, Heat Exchanger and Reducer, Gasket, Tee, Pipe Fitting, Tube Plate, have all specifications. With many yeas production experience, strict control 21-4N chemical composition and 21-4N mechanical properties.

Production specification
Data center describes many of the common steel models, we can not determine the company's warehouse has all types of steel products inventory or raw materials.

Angle bar: 1mm to 1300mm
Steel Pipe: 1 - 1300mm, also can be customed.
Pipe fitting Size: 1/8 inch - 80 inch (DN6 - DN2000)
Flange Size: DN6 - DN2000
Lenth: Any lenth based on the customer's requirement.

ENQUIRY: 21-4N

Cr-Mn-Ni-N austenitic heat-resistant steel, high-temperature strength of the steel, high temperature strength and anti pbo good corrosion.

C ≤	Si ≤	Mn ≤	P ≤	S ≤	Cr	Ni
0.48～0.58	Si：≤0.35	8.00～10.00	≤0.040	≤0.030	22.00～22.00	3.25～4.50
Mo	Al	Cu	Nb	Ti	V	Ce

N	Co	Pb	B	Other

Mechanical Properties Tensile strength σb (MPa): quenching and tempering, ≥ 950
The conditions yield strength σ0.2 (MPa): quenching and tempering, ≥ 580
Elongation δ5 (%): quenching and tempering, ≥ 8 Reduction of area ψ (%): quenching and tempering,≥10
Rockwell hardness HRC: ≥ 28 Heat treatment and microstructure specifications
Heat treatment specifications:
1) solid melting, 1140 ~ 1180 ℃ water-cooled;
2) Aging, 760 ~ 815/4 ~ 8h air cooling.
1, the physical constants: Specific gravity: 7.73, specific heat: C (20 ° C). cal / g ℃, 0.12,
2, the amount of elastic cross: Temperature
20 600 700 800 E, KG / mm
21290 14990 14490 11010 3, the linear expansion coefficient:
Temperature 20-100 20-200 20-300 20-400 20-500 2 * 10mm/mm ℃
12.2 14.5 15.7 16.5 17.1

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ENQUIRY: 21-4N

21-4N

Production specification
Data center describes many of the common steel models, we can not determine the company's warehouse has all types of steel products inventory or raw materials.

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21-4N

Production specification Data center describes many of the common steel models, we can not determine the company's warehouse has all types of steel products inventory or raw materials.

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Month Top

Production specification
Data center describes many of the common steel models, we can not determine the company's warehouse has all types of steel products inventory or raw materials.