1.4401 Stainless Steel Pipe (X5CrNiMo17-12-2) has excellent corrosion resistance, high temperature strength, and good mechanical properties, with high content of chromium, nickel, and molybdenum. Chromium helps form a dense chromium oxide film on the surface of the steel, offering strong resistance to oxidation. This makes 1.4401 stainless steel ideal for use in the chemical, food processing, medical, marine engineering, and architectural decoration industries, where it is considered superior to 304 stainless steel.
Solution Treatment of 1.4401 Stainless Steel Seamless Pipe:
The solution treatment process involves heating the stainless steel to a high temperature (typically between 1050°C and 1150°C) and then rapidly cooling it. This process helps to eliminate intergranular precipitation and hardening phases in the material, ultimately restoring a uniform austenitic crystal structure.
Chemical Element of SS DIN 1.4401 Hollow Pipe
| Grade | 316 | |
| min | max | |
| C | – | 0.08 |
| Mn | – | 2.0 |
| Si | – | 0.75 |
| P | – | 0.045 |
| S | – | 0.03 |
| Cr | 16.0 | 18.0 |
| Mo | 2.0 | 3.0 |
| Ni | 10.0 | 14.0 |
| N | – | 0.10 |
Mechanical Properties of SS UNS S31600 Round Pipe
| Grade | 316 | |
| Tensile Strength (MPa) min | 515 | |
| Yield Strength 0.2% Proof (MPa) min | 205 | |
| Elongation (% in 50mm) min | 40 | |
| Hardness | Rockwell B (HR B) max | 95 |
| Rockwell B (HR B) max | 217 | |
| Items | Square tubes, rectangular tubes, round tubes |
| Thickness | 0.5~75mm |
| Specifications | Outer diameter (pipe): 1) Round tube: 8mm to 680 mm 2) Square tube: 10x10mm to 300x300mm 3) Rectangular tube: 10x20mm to 120x180mm |
| Surface | Polishing,annealing,pickling,bright |
| Technology | Cold/hot rolling |
| Test | Squash test, extended test, water pressure test, crystal rot test, heat |
Why choose GNEE
GNEE specializes in the production of various stainless steel pipes, plates, coils, rods, pipe fittings, high-nickel alloy steel products,
High temperature resistant products, and other OEM&ODM services. The products have passed ISO9001, TS16949, BV, SGS and other internationally renowned certification agencies. We welcome all users, manufacturers and traders to cooperate with us.
Q1:Can we supply the sample?
A:Yes,we can supply the sample.You can tell us the detail size.
Q2:Can we accept customize?
A:Yes,we can.We can manufacture as customer's requirement.You can send the CAD or drawing to us.
Q3:Quality problem?
A:According to the standard for production.And the products must pass the quality inspection department.
We also accept Third Part Inspection.
Q4:Delivery time?
A:Prompt delivery for standard size,or under the contract.
