Similar Grades:
UNS S30900
Shape:
Round, Flat, Square.
Size Range:
| |
Diameter(mm) |
Thickness (mm) |
Width (mm) |
Length(mm) |
| Round |
20-480 |
- |
- |
2000-5800 |
| Square |
20-480 |
- |
- |
2000-5800 |
| flat |
- |
20-50 |
80-600 |
2000-5800 |
Steel-making Condition:
EF, EF/EAF+LF+VD, EF/EAF+ESR
Delivery Condition:
Annealed , Quenched + Tempered
Surface Condition:
Black, Grinded, Peeled, Rough turned, Polished
Features:
1.Competitive price
2.Immediate delivery
3.Premium quality
4.Reliable service
5.MOQ: 1 Ton
| Packing details |
In seaworthy packing, as your requirement. |
| Delivery details |
within 30-50 days |
Chemical Composition:
C |
Mn |
P |
S |
Si |
Cr |
Ni |
N |
| 0.20max |
2.00max |
0.045max |
0.030max |
1.00max |
22.0-24.0 |
12.0-15.0 |
/ |
Mechanical Properties
Properties |
Metric |
Imperial |
| Tensile strength |
620 MPa |
89900 psi |
| Yield strength (@ strain 0.200%) |
310 MPa |
45000 psi |
| Izod impact |
120 - 165 J |
88.5 - 122 ft-lb |
| Shear modulus (typical for steel) |
77 GPa |
11200 ksi |
| Elastic modulus |
200 GPa |
29008 ksi |
| Poisson's ratio |
0.27-0.30 |
0.27-0.30 |
| Elongation at break (in 50 mm) |
45% |
45% |
| Hardness, Brinell |
147 |
147 |
| Hardness, Rockwell B |
85 |
85 |
| Hardness, Vickers (converted from Rockwell B hardness) |
169 |
169 |
Fabrication and Heat Treatment
Machinability
Grade 309 stainless steel can be machined similar to that of 304 stainless steel.
Welding
Grade 309 stainless steel can be welded using fusion or resistance welding methods. Oxyacetylene welding method is not preferred for welding this alloy.
Hot Working
Grade 309 stainless steel is hot worked at 1177°C (2150°F) followed by reheating at 982°C (1800°F). It can be then quenched rapidly. Post-work annealing can be done to restore its corrosion resistance property.
Cold Working
Grade 309 stainless steel can be headed, upset, drawn, and stamped even though it has high work hardening rate. Annealing is performed after cold working in order to reduce internal stress.
Annealing
Grade 309 stainless steel is annealed at 1038-1121°C (1900-2050°F) followed by quenching in water.
Hardening
Grade 309 stainless steel does not react to heat treatment. Strength and hardness of this alloy can be increased by cold working.
Introduction:
Stainless steels are high-alloy steels which have higher corrosion resistance compared to other steels due to the presence of large amounts of chromium. Based on their crystalline structure, they are further divided into ferritic, austenitic, and martensitic steels.
Applications:
Grade 309 stainless steel is used in the following applications:
· Boiler baffles
· Furnace components
· Oven linings
· Fire box sheets
· Other high temperature containers.
Contact Information:
FUSHUN SPECIAL STEEL CO., LTD.
Website: fushunmetal.en.made-in-china.com
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