Triton Alloys Inc keep Stocks in 309/309S which is a highly authenticate CR-NI stainless steel used for its excellent oxidation resistance, High temperature and creep resistance. SS 309 except for a Low Carbon Content that minimizes carbide precipitation and improves weld ability.It is tough and ductile,and can be readily fabricated and machined
309S is the low-carbon version of 309,and is recommended for applications where sensitisation, and subsequent corrosion by high temperature gases or condensates during shutdown may pose a problem. They are essential Non-Magnetic as annealed & become slightly magnetic when cold worked. 309 is manufactured to ASTM A 167 and 309S to ASTM A240 specifications.
Specifications:
AMS 5523
ASME SA 240, ASME SA 312, ASME SA 479
ASTM A 240, ASTM A 276, ASTM A 276 Condition A, ASTM A 276 Condition S, ASTM A 312, ASTM A 479
EN 1.4833
UNS S30908, UNS S30909
Werkstoff 1.4833
Chemical Properties:
Element
Content (%)
Iron, Fe
60
Chromium, Cr
23
Nickel, Ni
14
Manganese, Mn
2
Silicon, Si
1
Carbon, C
0.2
Phosphorous, P
0.045
Sulfur, S
0.03
Physical Properties:
Properties
Metric
Imperial
Density
8 g/cm3
0.289 lb/in³
Melting point
1455°C
2650°F
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)
0.45
0.45
Hardness, Brinell
147
147
Hardness, Rockwell B
85
85
Hardness, Vickers (converted from Rockwell B hardness)
