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ASTM A334 Gr.1 Low-Finned Tube for Low-Temperature Service in the Natural Gas Industry

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ASTM A334 Gr.1 Low-Finned Tube for Low-Temperature Service in the Natural Gas Industry

Brand Name:	YUHONG
MOQ:	2PCS
Price:	Negotiable
Payment Terms:	T/T,L/C
Supply Ability:	According to Clients' requirements

Detail Information

Product Description

Detail Information

Certification:

ASTM A333 Gr.1 Carbon Steel Low Finned Tube

Place Of Origin:

China

Product Name:

ASTM A334 Gr.1 Carbon Steel Low Finned Tube

Bare Tube OD:

10~38mm

Fin Height:

＜1.6mm

Fin Thickness::

~0.3mm

Fin Pitch:

0.6~2mm

Packaging Details:

Ply-wooden Cases With Steel Frames And Pipe's Both Ends With Plastic Caps

Grade Group:

Q195-Q345,A53-A369,16Mn,10#-45#,ST35-ST52

Surface Treatment:

Galvanized,welded Pin,Copper Coated,Black

Certification:

ABS, BV, DNV, CCS, LR

Bare Tube Specification&Material:

ASTM A333 Gr.6

Bare Tube Length:

Customsized

Application Industries:

Air Coolers (Fin-Fan Coolers); Heat Recovery Systems; Refrigeration And Cryogenic Plants; Petrochemical And Gas Processing Plants...

Supply Ability:

According to Clients' requirements

Highlight:

ASTM A334 Gr.1 Low-Finned Tube

Low-Temperature Service Studded Tube

Natural Gas Industry ASTM A334 Gr.1 Tube

Product Description

ASTM A334 Gr.1 low-finned tubes provide significant advantages in natural gas industry applications, combining material standards with optimal performance for low-temperature operations. Manufactured to ASTM A334 specifications, this material is designed for service down to -45°C, making it ideal for critical processes including natural gas liquefaction pre-cooling, BOG (Boil-Off Gas) treatment systems, and LNG storage tank insulation circulation.

The standard requires the material to achieve an average Charpy impact energy of at least 18J at -45°C, with no individual specimen falling below 13.5J. This toughness specification effectively prevents brittle fracture risks common in standard carbon steel pipes under low-temperature conditions, ensuring fundamental safety for natural gas facility operations.

Chemical Composition

Element	Composition
Carbon (C)	≤ 0.30%
Manganese (Mn)	0.40-1.06%
Phosphorus (P)	≤ 0.025%
Sulfur (S)	≤ 0.025%

Element Explanations:

Low carbon content ensures excellent plasticity at low temperatures
Precisely controlled manganese range prevents brittleness while maintaining strength
Minimal phosphorus and sulfur content reduces grain boundary embrittlement risks in low-temperature environments

Physical Properties

Property	Value
Tensile Strength	≥ 415 MPa
Yield Strength	≥ 240 MPa
Elongation	≥ 30%

Performance Explanations:

The tensile-to-yield strength ratio (approximately 1.73) ensures adequate strain hardening capability
Minimum 30% elongation exceeds ordinary carbon steel pipes (typically 20-25%), providing superior plastic deformation capacity
This strength-plasticity balance is crucial for preventing low-temperature brittle fractures while maintaining load-bearing capacity

Advantages of Low-Finned Structure in Natural Gas Applications

Enhanced Heat Transfer Efficiency

Technical Basis:

Low-finned structure significantly increases heat transfer area on ASTM A334 Gr.1 base material
High ductility (≥30% elongation) ensures superior fin forming quality

Value in Natural Gas Applications:

Enables efficient heat exchange within space-constrained LNG receiving terminals
Reduces heat exchanger volume, lowering overall facility footprint and costs
Improves BOG handling efficiency and minimizes natural gas losses

Optimized Frost Resistance

Technical Basis:

Combines ASTM A334 Gr.1 fine-grained structure with low-finned design
Material's thermal expansion coefficient compatibility with fin geometry

Value in Natural Gas Applications:

Reduces frost formation on heat exchange surfaces in LNG facilities, extending maintenance cycles
Maintains stable heat transfer efficiency, preventing system performance degradation
Lowers operational costs and improves equipment availability at LNG receiving terminals

Assurance of Welding Reliability

Technical Basis:

ASTM A334 requires material to have "good weldability"
Moderate carbon equivalent (controlled by standard chemical composition) ensures welding quality

Value in Natural Gas Applications:

Ensures reliability at critical connection points within LNG facilities
Reduces leakage risks from welding defects, enhancing natural gas infrastructure safety
Accommodates complex on-site welding conditions, guaranteeing construction quality

Specific Application Scenarios in the Natural Gas Industry

BOG (Boil-Off Gas) Treatment System in LNG Receiving Terminals

Application Description:

BOG systems handle naturally evaporated natural gas from LNG storage tanks, operating between -100°C and -40°C
A333 GR.1 low-finned tubes used in BOG compressor coolers and reliquefaction unit heat exchangers

Manifestation of Standard Advantages:

Fine-grained structure from normalization heat treatment enhances material stability during temperature fluctuations
High elongation (≥30%) enables material to withstand frequent temperature cycling in BOG systems
Low phosphorus and sulfur content reduces embrittlement risk during long-term operation

Natural Gas Precooling Systems

Application Description:

Natural gas undergoes multi-stage precooling before LNG liquefaction, with -45°C stage being critical
A334 GR.1 low-finned tubes used in heat exchangers for this temperature stage

Manifestation of Standard Advantages:

-45°C impact energy requirement (§8.2.1) specifically designed for this operating condition
Moderate manganese content range optimizes strength-toughness balance for pressure fluctuations
Strict surface quality requirements ensure defect-free tubes, preventing micro-crack propagation

LNG Storage Tank Insulation (Cold Conservation) Systems

Application Description:

LNG storage tanks require multi-layer insulation systems to maintain -162°C storage temperature
A334 GR.1 low-finned tubes used in interlayer nitrogen circulation cooling systems

Manifestation of Standard Advantages:

18J impact energy requirement provides sufficient safety margin for tank insulation system reliability
Fine-grained structure lowers ductile-to-brittle transition temperature for safe operation around -45°C
Strict chemical composition control minimizes performance degradation during long-term operation

Intermediate Cooling Stages in Natural Gas Liquefaction Plants

Application Description:

Multi-stage cooling process in natural gas liquefaction includes stages operating near -45°C
A334 GR.1 low-finned tubes used in heat exchangers for these temperature stages

Manifestation of Standard Advantages:

Compatibility with ASME B31.3 Process Piping code simplifies design approval process
30% elongation ensures material withstands temperature fluctuations common in liquefaction processes
Clearly defined applicable temperature range (-45°C) provides reliable design boundary

Tags:

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

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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