Hygienic pipe fittings refer to hygienic pipe fittings used in pharmaceutical, food, and other industries that require a high level of hygiene. Generally purchased by the pharmaceutical or food factory for maintenance and its related equipment configuration, the purchaser is basically a pharmaceutical, food equipment system integrator and buy wholesale, etc.
Hygienic stainless steel pipe inside and outside the surface of the polishing process, so that the surface of the steel pipe is bright, in order to prevent the tube to go inside the fluid material in the tube to form a hanging wall, a long time easy to contaminate and form a blockage in the tube. After polishing is completed, the steel pipe needs to be put into the passivation pool for soaking, with an acidic passivation solution to oxidize the surface of the steel pipe to form a passivation layer, in order to achieve the corrosion-resistant effect of the steel pipe. After the completion of passivation, oil-free cleaning is carried out to remove the oil and dirt on the surface of the steel pipe. After completion, it needs to be inspected by a grease analyzer. Mainly to prevent the tube wall itself from oil contamination to the tube walking fluid substances.
316L also belongs to the 18-8 type austenitic stainless steel derivatives, 316L Mo content makes the steel has excellent corrosion resistance. Hygienic stainless steel pipe is mainly used in food, beverage, wine, biological engineering, and other production equipment and assembly lines.
Specifications of Stainless Steel 316L Hygienic Tube
Specifications: ASTM A213/ASME A213, ASTM A249/ASME SA249, ASTM A269/ASME SA269, ASTM A312/ASME SA312, etc.
Standards: ASTM, JIS, EN, DIN, BS, etc.
Material: Stainless Steel 316L
Type: Hygienic Tube
Outside Diameter: 8mm-219mm
Wall Thickness: 0.25mm-140mm
Length: 1m-12m, or as required
End: Plain End, Beveled End, Threaded
Surface: Bright Annealed, Annealed & Pickled
Payment Terms: T/T, L/C
Delivery Time: As per quantity ordered
Chemical Composition (%) of Stainless Steel 316L Hygienic Tube
|
C, max |
Mn, max |
P, max |
S, max |
Si, max |
Cr |
Ni |
Mo |
|
0.030 |
2.00 |
0.045 |
0.030 |
1.00 |
16.00-18.00 |
10.00-14.00 |
2.00-3.00 |
Mechanical Properties of Stainless Steel 316L Hygienic Tube
|
Tensile Strength, MPa, min |
Yield Strength 0.2% Proof, MPa, min |
Elongation (% in 50mm), min |
Hardness, max |
|
|
Rockwell B (HRB) |
Brinell (HB) |
|||
|
485 |
170 |
40 |
|
217 |
Physical Properties of Stainless Steel 316L Hygienic Tube
|
Density (kg/m³) |
Elastic Modulus (GPa) |
Mean Coefficient of Thermal Expansion (m/m/°C) |
Thermal Conductivity (W/m.K) |
Specific Heat 0-1000°C (J/kg.K) |
Electrical Resistivity (n.m) |
|||
|
0-100°C |
0-315°C |
0-538°C |
at 100°C |
at 500°C |
||||
|
8000 |
193 |
15.9 |
16.2 |
17.5 |
16.3 |
21.5 |
500 |
740 |
Equivalent Grades of Stainless Steel 316L Hygienic Tube
|
STANDARD |
WERKSTOFF NR. |
UNS |
JIS |
AFNOR |
BS |
GOST |
EN |
|
SS 316L |
1.4404/1.4435 |
S31603 |
SUS 316L |
Z3CND17-11-02/ Z3CND18-14-03 |
316S11/ 316S13 |
03Ch17N14M3/ 03Ch17N14M2 |
X2CrNiMo17-12-2/ X2CrNiMo18-14-3 |
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