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Oct 29, 2025

1.4541 Seamless Stainless Steel Petrochemical Pipe

 
1.4541 Seamless Stainless Steel Petrochemical Pipe
1.4541 Seamless Stainless Steel Petrochemical Pipe
01

1.4541 Seamless Stainless Steel Petrochemical Pipe

1.4541 seamless stainless steel petrochemical pipe is a high-strength, corrosion-resistant, and heat-resistant material. Its seamless structure and titanium stabilization treatment give it excellent durability and service life in high-temperature and corrosive environments, making it an ideal choice for the petrochemical industry. Its main characteristics include high temperature resistance, corrosion resistance, good weldability, and compliance with standards such as EN10216-5. It should be noted that while it can withstand a variety of media, it is not the optimal choice for high-chloride environments.

02

What are the specifications for 1.4541 material?

AISI 321 is an austenitic stainless steel, also known as 1.4541, Alloy 321, BS 321S31, BS 321S51, and X6CrNiTi18-10. This material is a V2A steel, stabilized by the addition of titanium, and exhibits good corrosion resistance (PREN value 17.0 to 19.0).

1.4541 Material
 

UNS S32100 SS Seamless Pipe Chemical Composition

Grade   C N Ni Si P S Mn Cr TI
SS 321 Min - - 9.00 - - - - 17.0 5(C+N)
max 0.08 0.10 12.00 1.00 0.045 0.030 2.00 19.0 0.70 max

 

SS WERKSTOFF NR. 1.4541 Seamless Pipes Mechanical Properties

Grade Tensile Strength (MPa) min Elongation (% in 50mm) min Yield Strength 0.2% Proof (MPa) min Hardness
Rockwell B (HR B) max Brinell (HB) max
SS 321 515 40 205 95 217

 

Stainless Steel Pipe UNS S32100 Wall Thickness

OD (in mm)

WT (in mm )

16 to 85

0.5-3.0

13 to 85

0.5-2.0

6 – 630

0.5-30

6 to 430

0.8 – 30

20 to 200

0.5-2.0

12.7 to 250

0.5-30

12.5 to 203.2

1.0 – 5

0.28 to 10

0.08 – 1.2

12.7* 12.7 to 300* 300

0.5-30

10*20 to 100*200

0.5-30

22*0.7 to 108*2.0

0.5-2.0

 

Limitations

High Chloride Environments: 1.4541 is not suitable for environments with high chloride concentrations because the risk of pitting and crevice corrosion is high in such environments.

Non-Magnetic: In the annealed state, this material is generally non-magnetic. However, it may become slightly magnetic after cold working.

 

Standards and Compliance

Products are manufactured according to specific standards (e.g., EN10216-5) to ensure stringent quality and performance requirements.

They are typically designated as Class 321 according to ASTM A269 UNS S32100 standards.

Gnee Steel

 

About Gnee Steel

Gnee Steel specializes in the production of a wide range of stainless steel products. Gnee Steel's product packaging includes: Steel Strapping: Pipes with an outer diameter of 3 inches or less are typically strapped together with polypropylene film to prevent rust during ocean shipping, and then secured with steel strapping. Wooden Cases/Crates: Pipes are typically packaged in wooden cases or crates to protect the pipes during transportation, especially those that are longer or have larger diameters. Seaworthy Export Packaging: Suppliers typically use standard seaworthy export packaging methods, which may include a variety of materials and techniques to protect the pipes during transportation. Tarpaulin Packaging: This prevents rain, seawater, and other external factors from penetrating the export crates during transportation. Gnee Steel specializes in the production and sale of alloy materials. Gnee Steel's products are widely used in the aerospace, chemical, power, automotive, and nuclear energy sectors, and we can provide customized alloy material solutions based on customer needs. For alloy material pricing or customized alloy material solutions, please contact us for a quote: ru@gneesteelgroup.com

1.4541 Seamless Stainless Steel Pipe
1.4541 Seamless Stainless Steel Pipe
1.4541 Seamless Stainless Steel Petrochemical Pipe
1.4541 Seamless Stainless Steel Petrochemical Pipe

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