EN 1.4301 Stainless Steel Round Tube

EN 1.4301 Stainless Steel Tube (X5CrNi18-10) is a conventional austenitic stainless steel with good resistance to atmospheric, organic and inorganic chemicals. This material is widely used due to its excellent resistance to intergranular corrosion, good cold deformability, good deep drawability and weldability.
EN X5CrNi18-10 Stainless Steel Round Tube is non-magnetic in the annealed condition, but may become slightly magnetic due to the addition of martensite or ferrite during cold working or welding.

What are the differences between AISI 304 (1.4301) and 316 (1.4401) stainless steel pipes?
AISI 304 and 316 have similar values ​​for hardness (Brinell hardness), elastic modulus and tensile strength. AISI 316 has a higher yield strength at 200 MPa (190 MPa for 304) and AISI 304 has a higher melting point (1450°C for 316 vs. 1400°C). Due to AISI 316, it generally has better corrosion resistance than 304.

Implementation standards
European standards: EN 10216-5 (seamless steel pipe), EN 10305-1 (welded steel pipe).
Equivalent grades: USA: ASTM A269/A312 (304), UNS S30400
China: GB/T 14976 (06Cr19Ni10)
Japan: JIS G3459 (SUS304)

DIN 1.4301 Pipes Seamless Pipes Equivalent Grades

Grade		304
UNS No		S30400
Old British	BS	304S31
	En	58E
Euronorm	No	1.4301
	Name	X5CrNi18-10
Swedish SS		2332
Japanese JIS		SUS 304

 

Chemical Composition of EN 1.4301 Stainless Steel Round Tube (Weight Percentage)

Element	Content Range	Function
Chromium (Cr)	17.5–19.5%	Forms a passive film to enhance corrosion and oxidation resistance
Nickel (Ni)	8.0–10.5%	Stabilizes the austenitic structure, improving toughness and low-temperature performance
Carbon (C)	≤0.07%	Low-carbon design reduces intergranular corrosion risk and ensures weldability
Silicon (Si)	≤1.0%	Improves machinability and controls oxide film formation
Manganese (Mn)	≤2.0%	Adjusts strength and balances alloy cost

 

DIN 1.4301 SS Pipes Mechanical Properties

Grade		DIN 1.4301
Tensile Strength (MPa) min		515
Yield Strength 0.2% Proof (MPa) min		205
Elongation (% in 50mm) min		40
Hardness	Rockwell B (HR B) max	92
	Rockwell B (HR B) max	201

304 stainless steel pipe specifications and surface treatment
Size range:
Outer diameter: 8–680 mm (round tube)
Wall thickness: 0.5–75 mm
Surface treatment: polishing, pickling, annealing, bright treatment, etc., to meet different appearance and corrosion resistance requirements.

GNEE factory complies with EN 10216-5 (seamless pipe) and EN 10305-1 (welded pipe) standards, and its products can meet the needs of the global market. It has passed ISO 9001 quality management system, ISO 14001 environmental management system and FDA (food/medical grade) certification to ensure quality and safety.
 

1. Polishing of stainless steel tubes
2. Beveling of stainless steel tubes
3. Honing and turning of stainless steel tubes
4. Heat treatment and annealing
5. Positive Material Identification (PMI)
PMI testing can be performed in-house on most stainless steel grades, or we can work with independent laboratories to complete PMI to meet customer specifications.
6. UT Testing
In some cases, UT testing of stainless steel may be required. We can assist you in meeting this requirement.

Q: What are the price advantages of 1.4301 round tubes compared to other stainless steels?
A: Compared with high-end alloys such as 316L, EN 1.4301 is cheaper, and has balanced corrosion resistance and mechanical properties, low long-term maintenance costs, and is suitable for large-scale applications.
Q: How long is the delivery cycle usually?
A: The delivery cycle for regular orders is 15–30 days, and expedited production can be negotiated for large projects. The factory supports fast delivery (such as North America, Europe, and Asia) through a global warehousing network.
Q: Does the factory provide technical support?
A: Yes. The factory provides welding guidance (recommended to use 308L welding wire), installation suggestions, and after-sales warranty to ensure the reliability of the product in complex environments.