Like other austenitic grades, 321 have excellent forming and welding characteristics, are readily brake or roll formed and have outstanding welding characteristics. Post-weld annealing is not required. They also have excellent toughness, even down to cryogenic temperatures. Grade 321 does not polish well, so is not recommended for decorative applications.
Like other austenitic grades, 321 have excellent forming and welding characteristics, are readily brake or roll formed and have outstanding welding characteristics. Post-weld annealing is not required. They also have excellent toughness, even down to cryogenic temperatures. Grade 321 does not polish well, so is not recommended for decorative applications.
Product Description
| Grade | ASTM S32100,321/ JIS SUS 321 /GB S32168,06Cr18Ni11Ti |
| Available Standard | ASTM, AISI, SUS, JIS, EN, DIN, GB, ASME, etc. In general, ASTM A240/A240M or as your requirements |
| Certification | MTC from mill |
| Brand/MILL | TISCO,JISCO,PZSS,BAO Steel,BAOXIN,etc |
| Treatment | Hot Rolled |
| Thickness | 3mm-16mm |
| Width | ≤2000mm |
| Finish | NO.1/polish |
| Edge | Slit edge & Mill edge |
Specification
321 stainless steel Chemical Composition
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | Other | |
| 321 | min. | - | 2 | 0.75 | 0.045 | 0.03 | 17 | - | 9 | 0.1 | Ti=5(C+N) |
| max | 0.08 | 19 | 12 | 0.7 |
Mechanical Properties
Typical mechanical properties for grade 321 stainless steels
| rade | Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50 mm) min | Hardness | |
| Rockwell B (HR B) max | Brinell (HB) max | ||||
| 321 | 515 | 205 | 40 | 95 | 217 |
Physical Properties
Typical physical properties for annealed grade 321 stainless steels:
| 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 |
321 Stainless Steel Grade Specification Comparison
| Grade | CN GB/T20878-2007 | USA ASTMA959-2004 | EUROPE EN10088:1-1995, EN10095-1999 | JIS G4303-1998 G4311-1991 | RUSSIA ΓOCT 5632-1972 | |||
| S32168 | 06Cr18Ni11Ti | S32100 | 321 | X6CrNiTi18-10 | 1.4541 | |||
Applications
Typical applications include:
Aircraft exhaust manifolds
Expansion joints
Bellows
Furnace parts
Heating element tubing
Heat Exchangers
Woven or welded screens for high temperature mineral processing
Spiral Welded tube for burner pipes and flues
In 2016, it signed a strategic cooperation agreement with major domestic stainless steel factories for the sales of medium and heavy plates and special steel products, which also enabled the company to have new and brighter sales varieties. At the same time, it provides one-stop service for cutting, cutting, forming and and surface processing of stainless steel.
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