ASTM A333 Seamless Pipes

In the world of construction and infrastructure, ASTM A333 stands out as a leading standard for seamless and welded carbon and alloy steel pipes.
Specifically tailored for applications in low temperatures, these A333 steel pipes are not only resilient but are also crafted with meticulous attention to their impact properties, especially when used in freezing conditions.
The ASTM A333 steel pipe provides a reliable and flexible pipe selection for low-temperature environments, and also provides a strong basis and support for engineering design and material selection.

Choosing ASTM A333 is choosing precision.
The ASTM A333 standards includes manufacturing types in welding (ERW) and seamless. Material covers carbon and alloy steels.

Whether it’s seamless or welded, each pipe undergoes rigorous production procedures, ensuring uniformity and consistency. The range covers diverse steel grades and offers options in surface coatings, end types, joint methods, and machining services.
By opting for ASTM A333 steel pipe, you avail the flexibility and adaptability tailored to your unique project needs.

Key characteristics

• Application: Primarily for low-temperature service, where pipes must maintain strength and toughness in cold environments, such as the petrochemical and gas industries.
• Grades: Covers several grades of ferritic steel, with common grades including Grade 6, Grade 7 and Grade 3.
• Manufacturing: Can be manufactured through seamless or welded processes.
• Chemical composition: Varies by grade, with a higher carbon content in Grade 6 compared to Grade 3.
• Mechanical properties: Requires specific tensile strength, yield strength, elongation, and low-temperature impact properties to ensure performance.
• Testing: Must pass tests including chemical composition inspection, mechanical property tests, and non-destructive tests to ensure quality and safety.

APPLICATIONS OF ASTM A333 steel pipe:

• Cryogenic field development: The ASTM A333 pipeline serves as the main pipeline for transporting crude oil and natural gas, ensuring long-term stable operation of the pipeline system.
• Liquefied natural gas (LNG) industry: such as LNG transmission pipelines and LNG storage facilities. LNG needs to be transported at -162 degrees Celsius.
• Special chemical media transport: ASTM A333 pipe through reasonable alloy design and chemical composition control, effectively avoid the corrosion of these media.

ASTM A333 Gr. 6 chemical composition:

Grades	C.max	Si min	Mn	P	S
Gr. 6	0.30	0.1	0.29-1.06	≤0.025	≤0.025

 

ASTM A333 Gr. 6 mechanical property:

Grades	Tensile strength Rm	Yield strength YS	Enlongation A(％)
Gr. 6	415	240	≥16.5

Comparison Table of Carbon Steel Grades

Grade	Application	Temp Range	Key Features
A106	Boilers, refineries	Up to 750°F	High temp & pressure resistance
A53	Water, steam, air lines	Up to 550°F	Versatile, economical
API 5L	Oil & gas pipelines	Varies	Seamless flow, corrosion resistance
A333	Low-temp service	-50°F to +650°F	Toughness in sub-zero conditions

Coating types for carbon steel ASTM A333 seamless pipe against corrosion environments

In order to increase the resistance of steel pipe in corrosive environment, we offer different types of coating systems to protect against corrosion and abrasion break.

• 3PE coated, 3 layer Polyethylene coating
• FBE coated, Fusion-bonded epoxy coating
• Zinc coated, Hot dipped galvanized steel pipe, cold electric galvanized

Why Choose JSFITTINGS？

Achieving the optimal balance between reliability and economy in industrial infrastructure is the perpetual goal of carbon steel pipe application. JSFITTINGS ensures that every pipe meets dimensional accuracy and mechanical properties and delivers durable and stable performance in real-world conditions through a deep understanding of materials science and strict control over manufacturing processes.

We are more than a pipe supplier; we are your technical project partner. To obtain the optimal product selection advice and a highly competitive quote tailored to your specific application conditions (e.g., pressure rating, ambient temperature, corrosive media), please contact our technical sales team today.