DIN 1.4301 stainless steel for Components and Equipment

When specifying materials for components and equipment in demanding industrial environments, DIN 1.4301 stainless steel consistently ranks among engineers' top choices. Known for its excellent corrosion resistance, mechanical performance, and versatility, DIN 1.4301 is widely used across chemical processing, food & beverage, machinery, automotive, and architectural sectors.

 

What is DIN 1.4301 stainless steel?

DIN 1.4301 is a German austenitic stainless steel grade, with the following international equivalent grades: X5CrNi18-10, UNS S30400, ASTM 304, and SUS304. It belongs to the 300 series of austenitic stainless steels and is characterized by a balanced content of chromium (approximately 18%) and nickel (approximately 10%), resulting in excellent general corrosion resistance, good formability, and weldability.

 

What is the DIN equivalent of 304 stainless steel?

The DIN equivalent for 304 stainless steel is DIN 1.4301, also known by its European (EN) designation X5CrNi18-10, representing its composition of 18% chromium and 10% nickel. This widely used austenitic stainless steel is also known as SUS304 in Japan and UNS S30400 in the US.

Standard	Equivalent Grade	Notes
DIN EN	X5CrNi18-10	European common designation
UNS	S30400	Widely referenced in the Americas
ASTM	304	Major industrial specification
JIS	SUS304	Commonly used in Asia

 

 

Applications of DIN 1.4301 stainless steel tubes:

Storage tanks, containers, and structural frames
Pipes, tubing, and fittings
Fasteners, springs, and machined parts
Heat exchangers and process equipment
Food processing and sanitary applications
Building components exposed to outdoor environments

 

DIN 1.4301 stainless steel Chemical Composition (Typical)

Element	% (DIN 1.4301 / X5CrNi18-10)
Carbon (C)	≤ 0.07
Chromium (Cr)	17.5 – 19.5
Nickel (Ni)	8.0 – 10.5
Manganese (Mn)	≤ 2.0
Silicon (Si)	≤ 1.0
Phosphorus (P)	≤ 0.045
Sulfur (S)	≤ 0.015
Iron (Fe)	Balance

 

DIN 1.4301 stainless steel Mechanical Properties (Typical)

Property	Value
Tensile Strength	500 – 700 MPa
Yield Strength (0.2%)	≥ 190 MPa
Elongation	≥ 40%
Hardness	≤ 95 HRB
Modulus of Elasticity	~193 GPa

 

Is DIN 1.4301 stainless steel magnetic?

In the annealed condition, DIN 1.4301 (S30400) is non-magnetic. It may show slight magnetism after cold working, but this does not affect corrosion performance.

 

Can DIN 1.4301 be welded easily?

Yes. DIN 1.4301 has excellent weldability with common processes (TIG, MIG, spot welding). For critical applications, post-weld annealing or passivation enhances corrosion resistance.

 

How does 1.4301 differ from 304L (low carbon)?

1.4301 (standard 304) has slightly higher carbon (≤0.07%), while 1.4307 / 304L has lower carbon (≤0.03%) to minimize carbide precipitation in welded structures.

 

What are common thickness tolerances for DIN 1.4301 sheet/plate?

Typical plate tolerances range from ±0.1 mm up to ±0.5 mm depending on thickness and finish (cold vs hot rolled).

 

1.4301 vs 1.4307 corrosion resistance comparison

1.4307 (304L) has superior corrosion resistance to 1.4301 (304), especially after welding, due to its lower carbon content, which prevents carbide precipitation (intergranular corrosion) in heat-affected zones. While both offer good general resistance, 1.4301 has higher strength, but 1.4307's low carbon makes it safer for welded structures in corrosive environments or where welding is extensive, preventing reduced corrosion resistance at grain boundaries.

 

DIN 1.4301 stainless steel supplier

If you have project requirements for 1.4301 304 stainless steel bars, we welcome your order. GNEE has a large inventory of popular products for you to choose from. It can be processed into various practical product forms, including plates, coils, tubes, bars, and wires. For detailed chemical composition and free samples, please contact our factory immediately. We offer competitive prices and excellent service.

buy DIN 1.4301 stainless steel bar online

DIN 1.4301 is available in multiple product forms used in manufacturing components and assemblies:

Product Form	Typical Range	Common Tolerances
DIN 1.4301 Plate / Sheet	0.5 – 50 mm	±0.1 – ±0.5 mm
DIN 1.4301 Coil / Strip	0.3 – 6 mm	±0.05 – ±0.2 mm
DIN 1.4301 Bar / Rod	3 – 200 mm	±0.2 – ±1 mm
DIN 1.4301 Tube / Pipe	OD 6 – 406 mm	±0.1 – ±0.5 mm
DIN 1.4301 Wire	0.2 – 6 mm	±0.02 – ±0.05 mm