Seawater Cooled Condensers & Heat Exchangers: Shipboard condensers (main engine cooling), Offshore oil rig heat exchangers (cooling hydraulic systems, lube oil), Desalination plants (multi-stage flash evaporators)

Power Generation (Fossil & Nuclear)

Steam Surface Condensers: Coastal/nuclear power plants (seawater-cooled condensers), Waste heat recovery units (exhaust gas boilers)

Chemical & Petrochemical Processing

Corrosive Fluid Heat Transfer: Refinery coolers (hydrocarbon processing), Ammonia condensers (fertilizer plants)

HVAC & Refrigeration

Chillers & Evaporators: Compact design fits shell-and-tube evaporators (e.g., industrial chillers), Seawater-cooled HVAC (tropical coastal buildings), Industrial refrigeration systems

Industrial Process Cooling

High-Temperature/Pressure Exchangers: Meets strict dimensional tolerances for high-pressure systems, Brewery/distillery wort coolers, Pulp & paper mill heat recovery

Mechanical Properties

Property	Value
Tensile Strength (UTS)	380 - 520 MPa (55,000 - 75,000 psi)
Yield Strength (0.2% Offset, YS)	140 - 310 MPa (20,000 - 45,000 psi)
Elongation (in 50mm)	35 - 45% (varies with temper)
Hardness (Rockwell B)	50 - 85 HRB
Modulus of Elasticity	100 - 110 GPa (14.5 - 16 Msi)

Strength Considerations

Temperature Effects

At Elevated Temperatures (~150-250°C / 302-482°F): Tensile strength decreases by ~20-30%
Below 0°C (32°F): Becomes slightly stronger but more brittle (impact resistance drops)

Corrosion & Erosion Impact

Dezincification or pitting can reduce effective wall thickness
Erosion-corrosion (high-velocity seawater) may accelerate wear

U-Bend Stress Considerations

The bent region is work-hardened, increasing local strength
Residual stresses from bending may require stress relief annealing

Material Comparison

Material	Tensile Strength (MPa)	Yield Strength (MPa)	Key Advantage
C68700 (Al Brass)	380-520	140-310	Best for seawater corrosion
C70600 (90/10 Cu-Ni)	290-400	120-200	Better sulfide resistance
C71500 (70/30 Cu-Ni)	350-550	140-350	Higher strength than C70600
Titanium Gr. 2	345-483	275-345	Lightweight, no corrosion
Carbon Steel	400-550	205-250	Cheap but rusts easily

Design & Operational Limits

Max Allowable Pressure: Depends on tube diameter/wall thickness (use ASME BPVC Section VIII for calculations)
Fatigue Life: Excellent for cyclic thermal loads (U-bend accommodates expansion)
Avoid: Over-tightening in tube sheets (can collapse thin-walled tubes). Excessive vibration (may cause fretting wear)

Testing & Certification

Hydrostatic Test: Ensures no leaks at 1.5x design pressure
Eddy Current/UT Testing: Checks for defects affecting strength
Certifications: ASTM B111 / ASME SB111, EN 12451 (EU)

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Products Details

Home > Products >

Heat Exchanger Tube

Aluminium Brass Tube ASME SB111 C68700 U Bend Heat Exchanger Tube For Refinery Coolers

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Studded Tube

Solid Fin Tube

Serrated Finned Tube

Embedded G Fin Tube

Extruded Fin Tube

Wound Fin Tube

Low Fin Tube

Square Fin Tube

Longitudinal Finned Tube

Enhanced Heat Transfer Tube

Fin Tube Support

Return Bend

Heat Exchanger Tube

Stainless Steel Heat Exchanger Tube

Duplex Stainless Steel Heat Exchanger Tube

Nickel Alloy Steel Heat Exchanger Tube

Copper Alloy Steel Heat Exchanger Tube

Titanium Alloy Steel Heat Exchanger Tube

Alloy Steel Heat Exchanger Tube

U Bend Heat Exchanger Tube

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Boiler Tube

Nickel Alloy Steel Boiler Tube

Stainless Steel Boiler Tube

Alloy Steel Boiler Tube

Carbon Steel Boiler Tube

Aluminium Brass Tube ASME SB111 C68700 U Bend Heat Exchanger Tube For Refinery Coolers

Brand Name:	YUHONG GROUP
MOQ:	1PC
Price:	Negotiable
Packaging Details:	WOODEN CASE WITH PLASTIC CAP
Payment Terms:	L/C,T/T

Detail Information

Product Description

Detail Information

Place of Origin:

CHINA

Brand Name:

YUHONG GROUP

Tube Material:

C12200, C44300, C68700, C70600

Length:

Max 34M/PC

O.D.:

6-50.8mm

W.T.:

0.5-15mm

Testing:

UT, ET, HT, PMI

Product Name:

Aluminium Brass Tube

Minimum Order Quantity:

1PC

Price:

Negotiable

Packaging Details:

WOODEN CASE WITH PLASTIC CAP

Delivery Time:

According to the quantity

Payment Terms:

L/C,T/T

Supply Ability:

10000 tons/month

Highlight:

SB111 u bend heat exchanger tube

C68700 u bend heat exchanger tube

Refinery Coolers aluminium brass tube

Product Description

Aluminium Brass Tube ASME SB111 C68700 U Bend Heat Exchanger Tube For Refinery Coolers

Product Specifications

Tube Material	C12200, C44300, C68700, C70600
Length	Max 34M/PC
O.D.	6-50.8mm
W.T.	0.5-15mm
Testing	UT, ET, HT, PMI
Product Name	Aluminium Brass Tube

Applications

Marine & Offshore Systems

Seawater Cooled Condensers & Heat Exchangers: Shipboard condensers (main engine cooling), Offshore oil rig heat exchangers (cooling hydraulic systems, lube oil), Desalination plants (multi-stage flash evaporators)

Power Generation (Fossil & Nuclear)

Steam Surface Condensers: Coastal/nuclear power plants (seawater-cooled condensers), Waste heat recovery units (exhaust gas boilers)

Chemical & Petrochemical Processing

Corrosive Fluid Heat Transfer: Refinery coolers (hydrocarbon processing), Ammonia condensers (fertilizer plants)

HVAC & Refrigeration

Chillers & Evaporators: Compact design fits shell-and-tube evaporators (e.g., industrial chillers), Seawater-cooled HVAC (tropical coastal buildings), Industrial refrigeration systems

Industrial Process Cooling

High-Temperature/Pressure Exchangers: Meets strict dimensional tolerances for high-pressure systems, Brewery/distillery wort coolers, Pulp & paper mill heat recovery

Mechanical Properties

Property	Value
Tensile Strength (UTS)	380 - 520 MPa (55,000 - 75,000 psi)
Yield Strength (0.2% Offset, YS)	140 - 310 MPa (20,000 - 45,000 psi)
Elongation (in 50mm)	35 - 45% (varies with temper)
Hardness (Rockwell B)	50 - 85 HRB
Modulus of Elasticity	100 - 110 GPa (14.5 - 16 Msi)

Strength Considerations

Temperature Effects

At Elevated Temperatures (~150-250°C / 302-482°F): Tensile strength decreases by ~20-30%
Below 0°C (32°F): Becomes slightly stronger but more brittle (impact resistance drops)

Corrosion & Erosion Impact

Dezincification or pitting can reduce effective wall thickness
Erosion-corrosion (high-velocity seawater) may accelerate wear

U-Bend Stress Considerations

The bent region is work-hardened, increasing local strength
Residual stresses from bending may require stress relief annealing

Material Comparison

Material	Tensile Strength (MPa)	Yield Strength (MPa)	Key Advantage
C68700 (Al Brass)	380-520	140-310	Best for seawater corrosion
C70600 (90/10 Cu-Ni)	290-400	120-200	Better sulfide resistance
C71500 (70/30 Cu-Ni)	350-550	140-350	Higher strength than C70600
Titanium Gr. 2	345-483	275-345	Lightweight, no corrosion
Carbon Steel	400-550	205-250	Cheap but rusts easily

Design & Operational Limits

Max Allowable Pressure: Depends on tube diameter/wall thickness (use ASME BPVC Section VIII for calculations)
Fatigue Life: Excellent for cyclic thermal loads (U-bend accommodates expansion)
Avoid: Over-tightening in tube sheets (can collapse thin-walled tubes). Excessive vibration (may cause fretting wear)

Testing & Certification

Hydrostatic Test: Ensures no leaks at 1.5x design pressure
Eddy Current/UT Testing: Checks for defects affecting strength
Certifications: ASTM B111 / ASME SB111, EN 12451 (EU)

Tags:

SB111 u bend heat exchanger tube

C68700 u bend heat exchanger tube

Refinery Coolers aluminium brass tube

ASTM A269 TP321 Heat Exchanger Tube For Heat Exchanger Condenser

Get Best Price

ASME SA213 TP321 Heat Exchanger Stainless Steel Seamless Tubes

Get Best Price

Stainless Steel ASTM A213 TP316L U Bend Tube For Heat Exchanger

Get Best Price

Aluminium Brass Tube ASME SB111 C68700 U Bend Heat Exchanger Tube For Refinery Coolers

Get Best Price

1/2-98 Inch ASTM A213 TP321 Stainless Steel Heat Exchanger Tube In Power Generation

Get Best Price

Carbon Steel ASME SA179 Seamless U Bend Tubes For Heat Exchanger And Condenser

Get Best Price

ASME SA789 UNS S32750 Super Duplex Stainless Steel Seamless Tube For Condenser

Get Best Price

ASTM A192 High Pressure Carbon Steel Seamless Tube For Heat Exchanger Superheater

Get Best Price

Studded Tube

Solid Fin Tube

Serrated Finned Tube

Embedded G Fin Tube

Extruded Fin Tube

Wound Fin Tube

Low Fin Tube

Square Fin Tube

Longitudinal Finned Tube

Enhanced Heat Transfer Tube

Fin Tube Support

Return Bend

Heat Exchanger Tube

Stainless Steel Heat Exchanger Tube

Duplex Stainless Steel Heat Exchanger Tube

Super Duplex Stainless Steel Heat Exchanger Tube

Nickel Alloy Steel Heat Exchanger Tube

Copper Alloy Steel Heat Exchanger Tube

Titanium Alloy Steel Heat Exchanger Tube

Alloy Steel Heat Exchanger Tube

U Bend Heat Exchanger Tube

Carbon Steel Heat Exchanger Tubes

Boiler Tube

Nickel Alloy Steel Boiler Tube

Stainless Steel Boiler Tube

Duplex Stainless Steel Boiler Tube

Alloy Steel Boiler Tube

Carbon Steel Boiler Tube

Fired Heater Parts

Baffle Plate

Tubesheet

Studded Tube

Solid Fin Tube

Serrated Finned Tube

Embedded G Fin Tube

Extruded Fin Tube

Wound Fin Tube

Low Fin Tube

Square Fin Tube

Longitudinal Finned Tube

Enhanced Heat Transfer Tube

Fin Tube Support

Return Bend

Heat Exchanger Tube

Stainless Steel Heat Exchanger Tube

Duplex Stainless Steel Heat Exchanger Tube

Super Duplex Stainless Steel Heat Exchanger Tube

Nickel Alloy Steel Heat Exchanger Tube

Copper Alloy Steel Heat Exchanger Tube

Titanium Alloy Steel Heat Exchanger Tube

Alloy Steel Heat Exchanger Tube

U Bend Heat Exchanger Tube

Carbon Steel Heat Exchanger Tubes

Boiler Tube

Nickel Alloy Steel Boiler Tube

Stainless Steel Boiler Tube

Duplex Stainless Steel Boiler Tube

Alloy Steel Boiler Tube

Carbon Steel Boiler Tube

Fired Heater Parts

Baffle Plate

Tubesheet

products details

Studded Tube

Solid Fin Tube

Serrated Finned Tube

Embedded G Fin Tube

Extruded Fin Tube

Wound Fin Tube

Low Fin Tube

Square Fin Tube

Longitudinal Finned Tube

Enhanced Heat Transfer Tube

Fin Tube Support

Return Bend

Heat Exchanger Tube

Stainless Steel Heat Exchanger Tube

Duplex Stainless Steel Heat Exchanger Tube

Super Duplex Stainless Steel Heat Exchanger Tube

Nickel Alloy Steel Heat Exchanger Tube