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ASTM A213 T9 Alloy Steel Studded Fin Tube For Boiler Radiador

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ASTM A213 T9 Alloy Steel Studded Fin Tube For Boiler Radiador

Brand Name : YUHONG

Model Number : ASTM A213 T9

Certification : ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008

Place of Origin : CHINA

MOQ : 100KGS

Price : Negotiable

Payment Terms : L/C, T/T

Supply Ability : 1000Tons/Month

Delivery Time : 7DAYS

Packaging Details : Ply-wooden Case /Iron Case/ Bundle with plastic Cap

Tube Standard : ASTM A213 / ASME SA213

Tube Material Grade : T9 / T5 / T11 / T22

Type : Studded Fin Tube

Stud Material : Carbon Steel,Stainless Steel,Alloy Steel

Packing : Ply-Wooden Case, Iran Case

Application : Heater Parts,Refrigeration Parts,heat Exchanger,Cooler,Fluid Cooling

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ASTM A213 T9 Alloy Steel Studded Fin Tube For Boiler Radiador

SA213 T9 seamless steel pipe chemical composition: carbon: ≤0.15, manganese: 0.30~0.60, phosphorus ≤0.025, sulfur: ≤0.025, Silicon: 0.25~1.0, chromium: 8.0~10.0, molybdenum: 0.90~1.0

Tensile strength ≥415Mpa, yield strength ≥205Mpa, elongation ≥30%

Production range: Outer diameter: 21.3mm~762mm, wall thickness: 2.0mm~130mm

Production method: hot rolling, hot expansion, delivery condition: heat treatment, full annealing or isothermal annealing, normalizing + tempering

The product shall comply with TSG D7002 pressure pipeline element type test rules

Executive standards :ASME SA213/SA213M Seamless ferritic and austenitic alloy steel tubes for boilers, superheaters and heat exchangers, ASTM A213/213M Seamless ferritic and austenitic alloy steel tubes for boilers, superheaters and heat exchangers

The nail head tube (also known as needle shaped tube) is a cylindrical needle arranged in a square or hexagonal shape and welded evenly on the surface of the heat exchange tube. An efficient and energy-saving needle tube heat exchange tube group is formed by assembling and welding reinforced heat exchange nail head tubes with square or hexagonal shapes. Due to the cantilever structure and compact structure of the nail head tube needle ribs, under the impact of airflow, the needle ribs vibrate, making it difficult for soot to accumulate; Combined with the strong turbulent erosion of flue gas, the heat transfer efficiency of the nail head tube heat exchange element is high, and it has strong self cleaning ability.

The nail head tube group is particularly suitable for compact waste heat boilers, oil and gas boilers, and oil heaters. Under the same heat exchange rate, its weight and overall dimensions have significantly decreased. The anti fouling performance of the nail head tube group is significantly improved compared to other conventional enhanced heat transfer boiler tubes. In the case of low smoke temperature, the nail head tube can still economically recover waste heat, and has broad application prospects in heat exchange and energy-saving engineering.

Base Tube Material Stainless Steel, Carbon Steel, Alloy Stee
Base Tube Outside Diameter 25 mm to 219 mm
Base Tube Thickness 2 mm to 14mm
Length As Client’s Request
Stud Material Carbon Steel / Stainless Steel / Alloy Steel
Stud Thickness 1mm to 15mm
Stud Pitch 8 - 30mm Or As Customized
Stud Height 5mm to 35mm
Bare Ends Plain Ends / Beveled Ends / Threaded

Chemical Propeties:

C 0.15
Mn 0.3-0.6
P 0.025
S 0.025
Si 0.03
Cr 1-1.5
Mo 0.9-1.1

Mechanical Properties:

Tensile Strength, min 60 Ksi, 415 MPa
Yield Strength, min 30 Ksi, 205 MPa
Hardness, Rockwell B, max 89 HRB
Hardness, Brinell, max 179 HBW
Hardness, Vickers, max 190 HV

Inspection items:
1. chemical composition: meet the requirements:
2. size requirements; Meet the requirements
3. grain size: meet the requirements:
4. room temperature mechanical properties: meet the requirements:
5. hardness: meet the requirements:
6. flattening test;
7. Flaring test:
8. Hydraulic test: ultrasonic test or eddy current test can be used instead of hydraulic test.
9. surface quality: no oxide surface, when bright annealing can be used without pickling.

Protocol item: Stabilized heat treatment.

ASTM A213 T9 Alloy Steel Studded Fin Tube For Boiler Radiador


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