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ASME SA182 F304H Stainless Steel Ring 1.4948 Steel Forged Ring Heat Exchanger Spare Parts

ASME SA182 F304H Stainless Steel Ring 1.4948 Steel Forged Ring Heat Exchanger Spare Parts

  • ASME SA182 F304H Stainless Steel Ring 1.4948 Steel Forged Ring Heat Exchanger Spare Parts
  • ASME SA182 F304H Stainless Steel Ring 1.4948 Steel Forged Ring Heat Exchanger Spare Parts
  • ASME SA182 F304H Stainless Steel Ring 1.4948 Steel Forged Ring Heat Exchanger Spare Parts
ASME SA182 F304H Stainless Steel Ring 1.4948 Steel Forged Ring Heat Exchanger Spare Parts
Dettagli:
Luogo di origine: Cina
Marca: YUHONG
Certificazione: ASME II, ASME III, ABS, LR, DNV, GL , BV, CCS, KR, NK, TUV, PED, GOST, ISO , TS
Numero di modello: Anello forgiato in acciaio inossidabile ASME SA182 F304H
Termini di pagamento e spedizione:
Quantità di ordine minimo: 1 pz
Imballaggi particolari: Cassa/pallet di legno della piega
Tempi di consegna: 7 giorni
Termini di pagamento: L/C, T/T
Contatto
Descrizione di prodotto dettagliata
Nome del prodotto: Anello forgiato Standard: ASTM A182, ASME SA182
Materiale: 304H, 1.4948 Misurare: può l'abitudine, come requisiti di disegno del compratore
Forma: Squillo NDT: 100% PT, UT, PMI
Applicazione: Lo scambiatore di calore, la caldaia, il contenitore a pressione, la turbina a vapore, il grande con
Evidenziare:

ASME SA182 F304H stainless steel ring

,

1.4948 steel forged ring

,

heat exchanger spare parts steel ring

ASME SA182 F304H Stainless Steel Forged Ring for Heat Exchanger Application

 

 

ASME SA182 F304H forged ring is a forged austenitic stainless-steel specification for high-temperature heat exchanger structural parts (tubesheets, flanges, channel rings). Grade F304H features a controlled 0.04–0.10% carbon range, giving it significantly higher creep and stress-rupture strength above 540°C compared to standard 304/L grades—critical for long-term operation. Supplied solution-annealed with fine grain size (ASTM 7+), these forged rings undergo ultrasonic and penetrant inspections. They pair excellently with TP321 tubes due to matched thermal expansion but are incompatible with CuNi 70/30 tubes without electrical isolation, as F304H is far more noble in seawater, inducing rapid galvanic corrosion.

 
 

Function of Forged Rings in Heat Exchangers

These are the heavy structural components, not the tubes themselves:

  • Tubesheets: The thick drilled ring/plate that holds the tube bundle (e.g., TP321 tubes). F304H provides the strength to withstand high differential pressure between shell-side and tube-side fluids.

  • Flange Rings: Welded or integral rings at the channel ends for bolting to piping or bonnets.

  • Channel Barrels / Closures: Cylindrical forged sections for high-pressure inlet/outlet headers.

  • Bearing / Support Rings: Internal rings supporting tube bundles or flow distributors.

 

 

Chemical composition % of ASME SA182 F304H Stainless Steel Forged Ring Heat Exchanger Spare Parts

Geade C Mn Si P S Cr Ni N
304H min: 18.0 max:20.0 min: 8.0 max: 10.5 min: 0.04 max:0.10 0.75 max 2.0 max 0.04 max 0.03 max 0.10 max
 
 

Mechanical properties of grade ASTM A182 F304H Flange are displayed in the following table.

Grade Tensile Strength (MPa) min Yield Strength 0.2% Proof (MPa) min Elongation (% in 50mm) min Hardness
Rockwell B (HR B) max Brinell (HB) max
304H 515 205 40 92 201
 
 

Physical properties of ASME SA182 F304H Stainless Steel Forged Ring Heat Exchanger Spare Parts

Grade Density(kg/m3) Elastic Modulus (GPa) Mean Coefficient of Thermal Expansion (μm/m/°C) Thermal Conductivity (W/m.K) Specific Heat 0-100°C (J/kg.K) Electrical Resistivity (nΩ.m)
0-100°C 0-315°C 0-538°C at 100°C at 500°C
304H 8000 193 17.2 17.8 18.4 16.2 21.5 500 720
 
 

Specific Requirements for Heat Exchanger Spare Parts (Forged Rings)

When used for tubesheets, flanges, or channel barrels, forged rings must meet these critical requirements:

  • Grain Size: ASME SA182 requires a fine grain size (ASTM No. 7 or finer) for F304H to meet creep design curves. Coarser grains reduce rupture life.

  • Ultrasonic Examination (UT): For hollow forgings (rings) over specific thicknesses, UT is required to detect internal laminations or porosity.

  • Liquid Penetrant Examination (PT): Required for surface defect detection on finished machined surfaces (sealing faces of flanges).

  • Solution Annealing: Must be heated to 1040°C – 1120°C and rapidly quenched (water or rapid air) to put carbides into solution before service.

 
 
Application

 

  • Petroleum Refining (Hydroprocessing)
  • Petrochemical (Ethylene / Olefins)
  • Power Generation (Thermal & Nuclear)
  • Hydrogen Production (SMRs)
  • Shipbuilding
  • Heat Exchanger

 

 

 

ASME SA182 F304H Stainless Steel Ring 1.4948 Steel Forged Ring Heat Exchanger Spare Parts 0

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Persona di contatto: Vivi

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