Name: HFW Finned Tube Serrated Type SA387 Grade 12 13CrMo45 Fins for Power Plant HRSG
Brand: YUHONG
Price: 1 USD

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HFW Finned Tube Serrated Type SA387 Grade 12, 13CrMo4–5 Fins for Power Plant HRSG

Categories	Fin Tube
Brand Name:	YUHONG
Model Number:	Alloy Steel Fin Tube HFW Serrated Type
Certification:	ISO 9001/TUV/PED
Place of Origin:	China
MOQ:	1PC
Price:	Negotiable
Payment Terms:	T/T, L/C AT SIGHT
Supply Ability:	10000 pcs per month
Delivery Time:	Depends on order quantity
Packaging Details:	Iron frame wooden box
Type:	High Frequency Welded (HFW) Serrated Type
Base tube O.D.:	114.3mm/4"
Base tube THK.:	6.02mm/SCH40S
Base tube Length:	5020mm
Fin material:	SA387 Grade 12, 13CrMo4–5(1.7335),
FPI:	5

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Company Info.

YUHONG HOLDING GROUP CO., LTD

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HFW Finned Tube Serrated Type SA387 Grade 12, 13CrMo4–5 Fins for Power Plant HRSG

An HRSG (Heat Recovery Steam Generator) comprises three core sections:

Economizer: Preheats feedwater using low-temperature exhaust gas (250–350°C), improving thermal efficiency.
Evaporator: Absorbs medium-grade heat (300–400°C) to convert water into saturated steam.
Superheater: Elevates steam temperature to 500–600°C using high-grade heat, ensuring dry, high-energy steam for turbines.

1.7335 13CrMo4–5 Alloy Steel Fins Equivalent Designations

1.7335 13CrMo4–5 Alloy Steel Fins Chemical Composition (wt%)

Element	C	Si	Mn	Cr	Mo	P (max)	S (max)
13CrMo4-5	0.08–0.18	0.15–0.35	0.40–0.70	1.00–1.50	0.45–0.65	0.025	0.015

1.7335 13CrMo4–5 Alloy Steel Fins Mechanical Properties

HRSG Tube Types, Parameters, and Functions

Tube Type	Key Parameters	Function
Economizer	- OD: 25–50 mm - Temp: 250–350°C - Pressure: 5–15 MPa	Preheats feedwater using exhaust gas, improving thermal efficiency.
Evaporator	- OD: 30–60 mm - Temp: 300–400°C - Pressure: 10–20 MPa	Converts water to steam via heat absorption from flue gas.
Superheater	- OD: 25–50 mm - Temp: 500–600°C - Pressure: 15–25 MPa	Increases steam temperature above saturation for turbine efficiency.
Serrated Fins	- Height: 12–25 mm - Thickness: 1–2 mm - FPI: 3–7	Enhances heat transfer via turbulence and surface area (used in all sections).

Product Tags:

13CrMo4–5 Alloy Steel Fin Tube

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