ASTM A276 A479 321 stainless steel bar stock steel round bar
Product Description
- Item: ASTM A276 A479 321 stainless steel bar stock steel round bar
- Standard: ASTM A276, ASTM A484, ASTM A582
- Material: 301, 304, 304L, 309S, 321, 316, 316L, 317, 317L, 310S, 321, 329,201,630,904L,405,409,430,434,444,403,410,420,440A,440B,440C.
- Specifications:
- Round Bar, diameter 1~1500mm.
- Flat bar, thickness 0.1~100mm, width 3~1500mm.
- Square bar, 1x1mm~800x800mm
- Length: 2m, 3m, 5.8m, 6m,etc.
- Surface: Black, peeled, polishing, bright, sand blast, hair line, etc.
What is 321 stainless steel?
When the temperature reaches 800-1500 ° F (427-816 ° C) and chromium carbide precipitates, it can still maintain good resistance to intergranular corrosion. Due to the addition of titanium to the composition, 321 alloy can still maintain stability in the case of chromium carbide formation.
Due to its excellent mechanical properties, 321 alloy stainless steel has advantages in working in high temperature environments. Compared with 304 alloy, 321 alloy stainless steel has better ductility and resistance to stress fracture.
Chemical Composition
Table 1.Composition ranges for 321 grade stainless steel
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | Other |
| 321 | min. max | - 0.08 | 2.00 | 0.75 | 0.045 | 0.030 | 17.0 19.0 | - | 9.0 12.0 | 0.10 | Ti=5(C+N) 0.70 |
Mechanical Properties
Table 2.Mechanical properties of 321 grade stainless steel
| Grade | Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) min | Hardness |
| Rockwell B (HR B) max | Brinell (HB) max |
| 321 | 515 | 205 | 40 | 95 | 217 |
Physical Properties
Table 3.Physical properties of 321 grade stainless steel in the annealed condition
| 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 |
Products' Photos
FAQ
Q: Do you accept sample order?
A: Yes sure, please contact us for details.
Q: Are you a manufacturer or trading company?
A: We are a specialized manufacturer.
Q: How about the delivery terms?
A: 1. Payment: T/T, Western Union, Paypal, 30% deposit in advance and balance before delivery.
2. Min. Order Quantity: 100KG, or as required.
3. Transportation: By express (DHL,TNT,FedEx),air,sea,and train.
Q: How does your company control the quality?
A: Quality first. In order to guarantee high quality for our products,
Modern always makes a serious inspection for all products and raw materials in strict procedure.
Q: How about your after-sales service?
A: As a professional steel exporter, we offer promote technology support for all problems and questions.
Besides, we accept goods return or replace for quality problem.
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321H 321 Stainless Steel Bar Stock Meet ASTM A276 A479 Standard Anti Corrosion Images
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