Carbon Steel Tube A334 A334m Gr 6 Seamless Pipe for Cryogenic Industry

• Customization: Available
• Application: Chemical Industry, Construction Industry, Oil and Gas Industry, Water Treatment Plants
• Certification: CE
• Model NO.: Carbon Steel Tube A334 A334M Gr 6 Seamless Pipe
• Elongation: as Per Client′s Design
• Length: as Per Client′s Design
• Outer Diameter: 3.18-810mm/Custom
• tensile strength: as Per Products
• Wall Thickness: Sch5s-Sch160, Xs,Xxs/Custom
• Name: ASME SA334 Gr 6 Carbon Steel Seamless Tubes
• Steel Grade: ASME SA334 Gr 6/SA179/192
• Process: Polished/Solution Treatment
• Condition: Hot Finished/Cold Finished
• End: Plain End/Bevel End
• Test: Et,Ut,PT,Ht
• Stock: Size Can Customized
• Processing: Customized
• Thickness: 1-150mm
• Used: Factory, Decoration, Food
• Packing: Standard Export Packing
• Delivery Time: 10-30 Working Days
• Size: as Per Client Design
• Selling Units: Single Item
• Low MOQ: 5
• Transport Package: Woven Bag/Wooden Case
• Specification: SCH 5S-SCH160
• Trademark: EZS
• Origin: China
• Production Capacity: 10, 000, 000 Kgs/Year

Product Description

Product Description

  

 

ASTM A334 / ASME SA334 Chemical Compositions

Standard	Grade	Chemical Components (%)
		C	Si	Mn	P	S	Ni
ASTM A334/ ASME SA334	GR.6	≤0.30	≥0.10	0.29-1.06	≤0.025	≤0.025	/

 

Mechanical Tests Required

Standard	Grade	Mechanical Properties
		Tensile	Yield	Elongation	The Low degree of Temperature test
		Strength (Mpa)	Strength (Mpa)	(%)
ASTM A334/ ASME SA334	Gr.6	≥415	≥240	≥30	-45°

1. Material Overview

The ASTM A334/A334M Grade 6 Seamless Pipe is a low-temperature carbon steel pipe designed for cryogenic and sub-zero temperature applications. Compliant with the ASTM A334/A334M standard, it ensures exceptional toughness and reliability in environments down to -45°C (-50°F).

 

2. Key Features

Mechanical Properties

• Yield Strength: ≥240 MPa (35 ksi)

• Tensile Strength: 415-585 MPa (60-85 ksi)

• Elongation: ≥30% (ensures ductility under stress).

• Impact Toughness: Charpy V-notch tested at -45°C to meet low-temperature performance requirements.

Chemical Composition

• Carbon (C): ≤0.30% (balances strength and weldability).

• Manganese (Mn): 0.29-1.06% (enhances toughness).

• Silicon (Si): 0.10-0.35% (improves oxidation resistance).

• Phosphorus (P): ≤0.025% | Sulfur (S): ≤0.025% (minimizes brittleness).

Manufacturing Excellence

• Seamless Construction: Produced via hot extrusion or rotary piercing, eliminating weld seams and enhancing structural integrity.

• Heat Treatment: Normalized or normalized-and-tempered to refine grain structure and optimize low-temperature toughness.

 

3. Technical Compliance

• ASTM A334/A334M Standard: Guarantees compliance with dimensional tolerances, testing protocols, and material properties.

• Low-Temperature Certification: Certified for use in cryogenic applications (e.g., LNG systems, refrigeration).

• NDT Requirements: Ultrasonic testing (UT) or hydrostatic testing ensures defect-free pipes.

 

4. Applications

• Cryogenic Systems: LNG pipelines, liquid nitrogen/oxygen transport.

• Oil & Gas: Subsea pipelines, Arctic drilling equipment.

• Chemical Plants: Low-temperature process piping.

• Power Infrastructure: Cooling systems and cryogenic storage.

 

5. Quality Assurance

• Full Traceability: EN 10204 3.1/3.2 material certification with batch-specific test reports.

• Non-Destructive Testing (NDT): Mandatory ultrasonic or hydrostatic testing to ensure zero defects.

• Impact Testing: Charpy V-notch tests at -45°C validate low-temperature toughness.

 

6. Advantages

• Exceptional Low-Temperature Performance: Maintains ductility and strength in extreme cold.

• Seamless Reliability: No weld seams reduce risks of leaks or weak points.

• Weldability & Fabrication Flexibility: Compatible with standard welding techniques (e.g., TIG, MIG).

• Global Compliance: Meets ASTM, ASME, and PED standards for international projects.

  

 

Processing of Production