S321 pre fabrication spools has excellent performance of S321 stainless steel and the advantages of pre-manufactured mode. They can improve construction efficiency, ensure product quality, and reduce overall costs, making them the preferred components in many industries such as chemical, petrochemical and power. HT PIPE is a S321 pre fabrication spools supplier with 16+ export experience. Contact us for more information and quotes for free!
ASTM A240 ss321 Chemical Composition
|
Grade |
C |
Mn |
Si |
P |
S |
Cr |
Mo |
Ni |
N |
Other |
|
| sa240 tp321 |
min. |
- |
2.00 |
0.75 |
0.045 |
0.030 |
17.0 |
- |
9.0 |
0.10 |
Ti=5(C+N) |
alloy S32100 mechnical properties
| Grade | Density (kg/m3) | Elastic Modulus (GPa) | Mean Coefficient of Thermal Expansion (μm/m/°C) | Thermal Conductivity (W/m.K) | Specific Heat 0-100°C (J/kg.K) | Electrical Resistivity (nΩ.m) | |||
| 0-100°C | 0-315°C | 0-538°C | at 100°C | at 500°C | |||||
| 321 | 8027 | 193 | 16.6 | 17.2 | 18.6 | 16.1 | 22.2 | 500 | 720 |
Manufacturing Process and Quality Control of S321 Pre Fabrication Spools
ASTM A312 TP321 Material selection and inspection
Select S321 stainless steel materials that meet national or industry standards, and conduct chemical composition analysis, mechanical property testing and surface quality inspection to ensure the quality of raw materials.
ss321 pre fabrication Cutting and blanking
Use CNC cutting equipment to cut the S321 stainless steel pipe according to the design drawings, ensuring the accuracy of the length and section flatness.
uns s32100 Fitting processing
Process elbows, tees and other fittings according to the requirements, and perform surface treatment such as deburring and polishing to ensure the smoothness of the inner and outer surfaces.
s321 pipe Assembly and welding
Assemble the cut pipes and fittings according to the design requirements, and use automatic welding equipment for welding. During the welding process, strictly control the welding parameters to ensure the welding quality.
stainless steel 321 Non-destructive testing
Conduct non-destructive testing on the welded joints, such as ultrasonic testing, radiographic testing and liquid penetration testing, to detect internal and surface defects of the welds.
ss32100 Surface treatment and anti-corrosion
Perform surface treatment such as pickling, passivation or electroplating on the assembled spools to enhance corrosion resistance. For spools used in special environments, additional anti-corrosion coatings can be applied.
s32100 pipe spools Final inspection and packaging
Conduct overall dimensional inspection, pressure testing and air tightness testing on the finished spools. After passing the inspection, package them with anti-collision and anti-rust materials to ensure that they are not damaged during transportation.
