ASTM A333 grade 8 Pipes Manufacturer and Supplier in India
Fin Tubes is a reliable ASTM A333 Grade 8 Pipes manufacturer and supplier in India who produces high quality seamless and welded alloy steel pipes as per ASTM A333. The pipes used for Grade 8 are renowned for their superior low-temperature impact resistance, high mechanical strength and reliability in challenging working environments. We supply ASTM A333 Grade 8 Pipes in various sizes, wall thickness and customised specifications and maintain precision manufacturing, strict quality controls and international standards at Fin Tubes.
-
ISO 9001:2015Certified Company
-
High-qualityRaw Material
-
ExportWorldwide
-
Mill TestCertificate
Overview of ASTM A333 Grade 8 Pipes
ASTM A333 Grade 8 Pipes are low-temperature seamless and welded pressure pipe conforming to the ASTM A333 standard. Grade 8 is a 9% nickel alloy steel that is extremely tough, impact and cold ductile in the region below 100 K (-173°C); it is used for low-temperature applications. The alloy composition is designed to give further protection against brittle fracture in combination with excellent mechanical properties under severe operating conditions. These pipes are manufactured by seamless or welded methods with no filler metal and are tested and analyzed chemically, tension, flattening, hardness and impact as per ASTM standards. ASTM A333 Grade 8 Pipe also have good weldability, dimensional accuracy, and structural integrity, providing the reliability and service life required in critical pipelines that operate in low temperature applications.
Technical Data
Specifications of ASTM A333 Grade 8 Pipes
| Specification | Details |
|---|---|
| Product | ASTM A333 Grade 8 Pipes |
| Standard | ASTM A333 / ASME SA333 Grade 8 |
| Pipe Type | Seamless & Welded Steel Pipes |
| Material Grade | ASTM A333 Grade 8 Low Alloy Steel |
| Manufacturing Process | Seamless or Welded (without filler metal during welding) |
| Outside Diameter (OD) | 19.05 mm to 114.3 mm |
| Wall Thickness | 2.0 mm to 14.0 mm |
| Pipe Length | Up to 16,000 mm |
| Pipe Form | Round Pipes |
| Ends | Plain End (PE), Beveled End (BE), Threaded End (TBE) |
| Surface Finish | Black, Pickled, Painted, or Bare Finish |
| Testing | Hydrostatic Test, Impact Test, Tensile Test, Flattening Test, NDT (as required) |
| Temperature Service | Low-Temperature Pressure Service |
| Standards Compliance | ASTM A333 / ASME SA333 |
Chemical Composition of ASTM A333 Grade 8 Pipes
| Element | Composition Data |
|---|---|
| Carbon (C), max. | 0.13% |
| Manganese (Mn), max. | 0.90% |
| Phosphorus (P), max. | 0.025% |
| Sulfur (S), max. | 0.025% |
| Silicon (Si) | 0.13% – 0.32% |
| Nickel (Ni) | 8.40% – 9.60% |
| Other Elements | — |
Mechanical Properties of ASTM A333 Grade 8 Pipes
| Property | Longitudinal Value | Transverse Value |
|---|---|---|
| Tensile Strength, min. | 100,000 psi | 690 MPa |
| Yield Strength, min. | 75,000 psi | 515 MPa |
| Basic Minimum Elongation (For walls 5/16 in. [8 mm] and over, strip tests, and all small sizes tested in full section) | 22% | — |
| Standard Round Specimen Elongation (When standard round 2-in. [50 mm] or 4D gage length specimen is used) | 16% | — |
| Wall Thickness Elongation Deduction (Deduction for each 1/32 in. [0.8 mm] decrease in wall thickness below 5/16 in. [8 mm] from basic minimum) | 1.25% | — |
ASTM A333 Grade 8 Pipes Applications
Where ASTM A333 grade 8 Pipes Are Used
- LNG (Liquefied Natural Gas) Industry
- Oil & Gas Industry
- Petrochemical Industry
- Cryogenic Processing Industry
- Chemical Processing Industry
- Power Generation Industry
Petrochemical Industry
Oil & Gas Industry
 Industry.webp)
LNG (Liquefied Natural Gas) Industry
Cryogenic Processing Industry
Industries We Serve
Boilers
Heat Exchangers
Power Plants
Frequently Asked Questions
Have more questions? Send an enquiry and we will respond within one working day.
ASTM A333 Grade 8 Pipes are low-temperature alloy steel pipes designed for pressure piping and cryogenic applications.
It is a 9% nickel alloy steel that offers excellent toughness, strength, and impact resistance at very low temperatures.
Yes, ASTM A333 Grade 8 is specifically designed for cryogenic and ultra-low-temperature service.
They are designed to perform reliably in cryogenic and sub-zero temperature conditions as specified by ASTM A333.
Yes, ASTM A333 Grade 8 Pipes are available in both seamless and welded forms.
Request a Quote for ASTM A333 Grade 8 Pipes
ASTM A333 Grade 8 Pipes manufacturer in India offering seamless and welded alloy steel pipes with excellent low-temperature toughness, high strength, and reliable performance for pressure piping systems.