DIN Flange Stainless Steel 1.4301 / 1.4307 Manufacturer & Supplier
What are Stainless Steel 1.4301 / 1.4307 DIN Flanges?
Stainless Steel 1.4301 (X5CrNi18-10 / AISI 304) and 1.4307 (X2CrNi18-9 / AISI 304L) are the most widely used austenitic stainless steels. DIN standard flanges made from these materials are known for excellent corrosion resistance, good weldability, and durability.
DIN flanges in 304 / 304L stainless steel are commonly installed in chemical processing, food & beverage, pharmaceuticals, shipbuilding, oil & gas pipelines, and water treatment systems.
Chrome-nickel, 18/8 type stainless steel, non-temperable, austenitic and amagnetic logo. Good oxidation resistance up to 850 °C, although it should only be applied up to 300 °C due to intergranular corrosion. The hardness of this material cannot be altered by hardening treatment. It is easy to weld and requires no pre or post heat treatment, good machinability and suitable for deep drawing due to excellent elongation. Corrosion resistance increases the better the polishing.
Available Types of DIN Stainless Steel Flanges (1.4301 / 1.4307)
- DIN 2573 / DIN 2576 Slip On Flange (PN6 / PN10)
- DIN 2631 / DIN 2632 / DIN 2633 Weld Neck Flange (PN6 / PN10 / PN16)
- DIN 2527 Blind Flange
- DIN 2642 Lap Joint Flange
- DIN 2565 / DIN 2566 Threaded Flange
Technical Specification
- Material Grades: 1.4301 (304), 1.4307 (304L)
- Standards: DIN / EN 1092-1, ISO, ANSI/ASME on request
- Sizes: DN10 – DN2000
- Pressure Ratings: PN6, PN10, PN16, PN25, PN40
- Facing Types: Raised Face (RF), Flat Face (FF), Ring Type Joint (RTJ)
- Manufacturing: Forged, Machined, Heat Treated
Chemical Composition of 1.4301 & 104307 (Typical %)
| Grade | C | Mn | Si | P | S | Cr | Ni |
|---|---|---|---|---|---|---|---|
| 1.4301 (304) | ≤ 0.07 | ≤ 2.0 | ≤ 1.0 | ≤ 0.045 | ≤ 0.015 | 17.5–19.5 | 8.0–10.5 |
| 1.4307 (304L) | ≤ 0.030 | ≤ 2.0 | ≤ 1.0 | ≤ 0.045 | ≤ 0.015 | 17.5–19.5 | 8.0–10.5 |
Mechanical properties 1.4301/1.4307, X5CrNi18-10 / X2CrNi18-9, AISI 304/304L:
- Tensile strength, Rm 460 – 700 N/mm2
- Yield strength, Rp0,2: >190 N/mm2
- Elongation, A: >45%
- Impact strength, KV: >60J
- Modulus of elasticity, E: 200 GPa
- Hardness, HB: <215
- Linear expansion coefficient, α: 16,0 * 10-6 K-1
- Thermal capacity, cp20℃: 500 J * kg-1 * K-1
- Thermal conductivity, λ: 15 W * m-1 * K-1
- Resitivity, Ω: 0,73 mkOhm*m
Applications of DIN Stainless Steel Flanges (1.4301 / 1.4307)
- Chemical & Petrochemical Industry
- Food & Beverage Processing Equipment
- Pharmaceutical & Biotech Plants
- Shipbuilding & Marine Engineering
- Potable Water & Desalination Plants
- Oil, Gas & Refinery Pipelines
Related Products
- DIN 2633 PN16 Weld Neck Flange Stainless Steel
- DIN 2576 PN10 Slip On Flange Stainless Steel
- EN 1092-1 Type 11 Weld Neck Flange 304 / 304L
- ASTM A182 F304 / F304L Stainless Steel Flanges
We are a leading manufacturer and exporter of DIN stainless steel flanges in grades 1.4301 (AISI 304 / X5CrNi18-10) and 1.4307 (AISI 304L / X2CrNi18-9). Our flanges are designed according to DIN and EN 1092-1 standards, offering exceptional corrosion resistance, durability, and weldability for critical piping systems
