General
Mechanical
Property  Temperature  Value  Comment 

Creep strength 10^4 cycles  575.0 °C  167 MPa Show Supplier Material materials with Creep strength 10^4 cycles of 167 MPa  at 10000h 
600.0 °C  138 MPa Show Supplier Material materials with Creep strength 10^4 cycles of 138 MPa  at 10000h  
625.0 °C  112 MPa Show Supplier Material materials with Creep strength 10^4 cycles of 112 MPa  at 10000h  
650.0 °C  94 MPa Show Supplier Material materials with Creep strength 10^4 cycles of 94 MPa  at 10000h  
675.0 °C  76 MPa Show Supplier Material materials with Creep strength 10^4 cycles of 76 MPa  at 10000h  
700.0 °C  62 MPa Show Supplier Material materials with Creep strength 10^4 cycles of 62 MPa  at 10000h  
725.0 °C  50 MPa Show Supplier Material materials with Creep strength 10^4 cycles of 50 MPa  at 10000h  
750.0 °C  41 MPa Show Supplier Material materials with Creep strength 10^4 cycles of 41 MPa  at 10000h  
775.0 °C  33 MPa Show Supplier Material materials with Creep strength 10^4 cycles of 33 MPa  at 10000h  
800.0 °C  27 MPa Show Supplier Material materials with Creep strength 10^4 cycles of 27 MPa  at 10000h  
825.0 °C  22 MPa Show Supplier Material materials with Creep strength 10^4 cycles of 22 MPa  at 10000h  
850.0 °C  18 MPa Show Supplier Material materials with Creep strength 10^4 cycles of 18 MPa  at 10000h  
875.0 °C  15 MPa Show Supplier Material materials with Creep strength 10^4 cycles of 15 MPa  at 10000h  
900.0 °C  13 MPa Show Supplier Material materials with Creep strength 10^4 cycles of 13 MPa  at 10000h  
925.0 °C  11 MPa Show Supplier Material materials with Creep strength 10^4 cycles of 11 MPa  at 10000h  
950.0 °C  9.6 MPa Show Supplier Material materials with Creep strength 10^4 cycles of 9.6 MPa  at 10000h  
975.0 °C  8.2 MPa Show Supplier Material materials with Creep strength 10^4 cycles of 8.2 MPa  at 10000h  
1000.0 °C  7 MPa Show Supplier Material materials with Creep strength 10^4 cycles of 7 MPa  at 10000h  
1025.0 °C  6.2 MPa Show Supplier Material materials with Creep strength 10^4 cycles of 6.2 MPa  at 10000h  
1050.0 °C  5.5 MPa Show Supplier Material materials with Creep strength 10^4 cycles of 5.5 MPa  at 10000h  
1075.0 °C  4.9 MPa Show Supplier Material materials with Creep strength 10^4 cycles of 4.9 MPa  at 10000h  
1100.0 °C  4.3 MPa Show Supplier Material materials with Creep strength 10^4 cycles of 4.3 MPa  at 10000h  
Creep strength 10^5 cycles  525.0 °C  162 MPa Show Supplier Material materials with Creep strength 10^5 cycles of 162 MPa  at 100000h 
550.0 °C  128 MPa Show Supplier Material materials with Creep strength 10^5 cycles of 128 MPa  at 100000h  
575.0 °C  102 MPa Show Supplier Material materials with Creep strength 10^5 cycles of 102 MPa  at 100000h  
600.0 °C  82 MPa Show Supplier Material materials with Creep strength 10^5 cycles of 82 MPa  at 100000h  
625.0 °C  64 MPa Show Supplier Material materials with Creep strength 10^5 cycles of 64 MPa  at 100000h  
650.0 °C  52 MPa Show Supplier Material materials with Creep strength 10^5 cycles of 52 MPa  at 100000h  
675.0 °C  43 MPa Show Supplier Material materials with Creep strength 10^5 cycles of 43 MPa  at 100000h  
700.0 °C  33 MPa Show Supplier Material materials with Creep strength 10^5 cycles of 33 MPa  at 100000h  
725.0 °C  27 MPa Show Supplier Material materials with Creep strength 10^5 cycles of 27 MPa  at 100000h  
750.0 °C  22 MPa Show Supplier Material materials with Creep strength 10^5 cycles of 22 MPa  at 100000h  
775.0 °C  18 MPa Show Supplier Material materials with Creep strength 10^5 cycles of 18 MPa  at 100000h  
800.0 °C  15 MPa Show Supplier Material materials with Creep strength 10^5 cycles of 15 MPa  at 100000h  
825.0 °C  12 MPa Show Supplier Material materials with Creep strength 10^5 cycles of 12 MPa  at 100000h  
850.0 °C  10 MPa Show Supplier Material materials with Creep strength 10^5 cycles of 10 MPa  at 100000h  
875.0 °C  8.8 MPa Show Supplier Material materials with Creep strength 10^5 cycles of 8.8 MPa  at 100000h  
900.0 °C  7.5 MPa Show Supplier Material materials with Creep strength 10^5 cycles of 7.5 MPa  at 100000h  
925.0 °C  6.6 MPa Show Supplier Material materials with Creep strength 10^5 cycles of 6.6 MPa  at 100000h  
950.0 °C  5.7 MPa Show Supplier Material materials with Creep strength 10^5 cycles of 5.7 MPa  at 100000h  
975.0 °C  5 MPa Show Supplier Material materials with Creep strength 10^5 cycles of 5 MPa  at 100000h  
1000.0 °C  4.3 MPa Show Supplier Material materials with Creep strength 10^5 cycles of 4.3 MPa  at 100000h  
1025.0 °C  3.8 MPa Show Supplier Material materials with Creep strength 10^5 cycles of 3.8 MPa  at 100000h  
1050.0 °C  3.3 MPa Show Supplier Material materials with Creep strength 10^5 cycles of 3.3 MPa  at 100000h  
1075.0 °C  3 MPa Show Supplier Material materials with Creep strength 10^5 cycles of 3 MPa  at 100000h  
1100.0 °C  2.6 MPa Show Supplier Material materials with Creep strength 10^5 cycles of 2.6 MPa  at 100000h  
Elastic modulus  20.0 °C  200 GPa Show Supplier Material materials with Elastic modulus of 200 GPa  
200.0 °C  185 GPa Show Supplier Material materials with Elastic modulus of 185 GPa  
400.0 °C  170 GPa Show Supplier Material materials with Elastic modulus of 170 GPa  
600.0 °C  155 GPa Show Supplier Material materials with Elastic modulus of 155 GPa  
800.0 °C  135 GPa Show Supplier Material materials with Elastic modulus of 135 GPa  
1000.0 °C  120 GPa Show Supplier Material materials with Elastic modulus of 120 GPa  
Elongation  23.0 °C  40 % Show Supplier Material materials with Elongation of 40 %  min. 
Elongation A2  23.0 °C  40 % Show Supplier Material materials with Elongation A2 of 40 %  min. 
Hardness, Vickers  23.0 °C  190 [] Show Supplier Material materials with Hardness, Vickers of 190 []  
Tensile strength  20.0 °C  650  850 MPa Show Supplier Material materials with Tensile strength of 650  850 MPa  
100.0 °C  550 MPa Show Supplier Material materials with Tensile strength of 550 MPa  
200.0 °C  475 MPa Show Supplier Material materials with Tensile strength of 475 MPa  
300.0 °C  440 MPa Show Supplier Material materials with Tensile strength of 440 MPa  
400.0 °C  425 MPa Show Supplier Material materials with Tensile strength of 425 MPa  
500.0 °C  400 MPa Show Supplier Material materials with Tensile strength of 400 MPa  
600.0 °C  340 MPa Show Supplier Material materials with Tensile strength of 340 MPa  
Yield strength Rp0.1  20.0 °C  350 MPa Show Supplier Material materials with Yield strength Rp0.1 of 350 MPa  min. 
100.0 °C  265 MPa Show Supplier Material materials with Yield strength Rp0.1 of 265 MPa  min.  
200.0 °C  215 MPa Show Supplier Material materials with Yield strength Rp0.1 of 215 MPa  min.  
300.0 °C  200 MPa Show Supplier Material materials with Yield strength Rp0.1 of 200 MPa  min.  
400.0 °C  190 MPa Show Supplier Material materials with Yield strength Rp0.1 of 190 MPa  min.  
500.0 °C  180 MPa Show Supplier Material materials with Yield strength Rp0.1 of 180 MPa  min.  
600.0 °C  165 MPa Show Supplier Material materials with Yield strength Rp0.1 of 165 MPa  min.  
Yield strength Rp0.2  20.0 °C  310 MPa Show Supplier Material materials with Yield strength Rp0.2 of 310 MPa  min. 
100.0 °C  225 MPa Show Supplier Material materials with Yield strength Rp0.2 of 225 MPa  min.  
200.0 °C  189 MPa Show Supplier Material materials with Yield strength Rp0.2 of 189 MPa  min.  
300.0 °C  170 MPa Show Supplier Material materials with Yield strength Rp0.2 of 170 MPa  min.  
400.0 °C  160 MPa Show Supplier Material materials with Yield strength Rp0.2 of 160 MPa  min.  
500.0 °C  150 MPa Show Supplier Material materials with Yield strength Rp0.2 of 150 MPa  min.  
600.0 °C  140 MPa Show Supplier Material materials with Yield strength Rp0.2 of 140 MPa  min.  
Thermal
Property  Temperature  Value  Comment 

Coefficient of thermal expansion  100.0 °C  1.65E5 1/K Show Supplier Material materials with Coefficient of thermal expansion of 1.65E5 1/K  for 30°C to the mentioned temperature 
200.0 °C  1.7E5 1/K Show Supplier Material materials with Coefficient of thermal expansion of 1.7E5 1/K  for 30°C to the mentioned temperature  
300.0 °C  1.7E5 1/K Show Supplier Material materials with Coefficient of thermal expansion of 1.7E5 1/K  for 30°C to the mentioned temperature  
400.0 °C  1.75E5 1/K Show Supplier Material materials with Coefficient of thermal expansion of 1.75E5 1/K  for 30°C to the mentioned temperature  
500.0 °C  1.8E5 1/K Show Supplier Material materials with Coefficient of thermal expansion of 1.8E5 1/K  for 30°C to the mentioned temperature  
600.0 °C  1.8E5 1/K Show Supplier Material materials with Coefficient of thermal expansion of 1.8E5 1/K  for 30°C to the mentioned temperature  
700.0 °C  1.85E5 1/K Show Supplier Material materials with Coefficient of thermal expansion of 1.85E5 1/K  for 30°C to the mentioned temperature  
800.0 °C  1.9E5 1/K Show Supplier Material materials with Coefficient of thermal expansion of 1.9E5 1/K  for 30°C to the mentioned temperature  
900.0 °C  1.9E5 1/K Show Supplier Material materials with Coefficient of thermal expansion of 1.9E5 1/K  for 30°C to the mentioned temperature  
1000.0 °C  1.95E5 1/K Show Supplier Material materials with Coefficient of thermal expansion of 1.95E5 1/K  for 30°C to the mentioned temperature  
Max service temperature  1150 °C Show Supplier Material materials with Max service temperature of 1150 °C  
Specific heat capacity  20.0 °C  490 J/(kg·K) Show Supplier Material materials with Specific heat capacity of 490 J/(kg·K)  
100.0 °C  515 J/(kg·K) Show Supplier Material materials with Specific heat capacity of 515 J/(kg·K)  
200.0 °C  540 J/(kg·K) Show Supplier Material materials with Specific heat capacity of 540 J/(kg·K)  
300.0 °C  565 J/(kg·K) Show Supplier Material materials with Specific heat capacity of 565 J/(kg·K)  
400.0 °C  580 J/(kg·K) Show Supplier Material materials with Specific heat capacity of 580 J/(kg·K)  
500.0 °C  600 J/(kg·K) Show Supplier Material materials with Specific heat capacity of 600 J/(kg·K)  
600.0 °C  615 J/(kg·K) Show Supplier Material materials with Specific heat capacity of 615 J/(kg·K)  
700.0 °C  630 J/(kg·K) Show Supplier Material materials with Specific heat capacity of 630 J/(kg·K)  
800.0 °C  645 J/(kg·K) Show Supplier Material materials with Specific heat capacity of 645 J/(kg·K)  
900.0 °C  655 J/(kg·K) Show Supplier Material materials with Specific heat capacity of 655 J/(kg·K)  
1000.0 °C  665 J/(kg·K) Show Supplier Material materials with Specific heat capacity of 665 J/(kg·K)  
1100.0 °C  680 J/(kg·K) Show Supplier Material materials with Specific heat capacity of 680 J/(kg·K)  
Thermal conductivity  20.0 °C  13 W/(m·K) Show Supplier Material materials with Thermal conductivity of 13 W/(m·K)  
100.0 °C  14 W/(m·K) Show Supplier Material materials with Thermal conductivity of 14 W/(m·K)  
200.0 °C  16 W/(m·K) Show Supplier Material materials with Thermal conductivity of 16 W/(m·K)  
300.0 °C  18 W/(m·K) Show Supplier Material materials with Thermal conductivity of 18 W/(m·K)  
400.0 °C  20 W/(m·K) Show Supplier Material materials with Thermal conductivity of 20 W/(m·K)  
500.0 °C  21 W/(m·K) Show Supplier Material materials with Thermal conductivity of 21 W/(m·K)  
600.0 °C  23 W/(m·K) Show Supplier Material materials with Thermal conductivity of 23 W/(m·K)  
700.0 °C  24 W/(m·K) Show Supplier Material materials with Thermal conductivity of 24 W/(m·K)  
800.0 °C  25 W/(m·K) Show Supplier Material materials with Thermal conductivity of 25 W/(m·K)  
900.0 °C  26 W/(m·K) Show Supplier Material materials with Thermal conductivity of 26 W/(m·K)  
1000.0 °C  28 W/(m·K) Show Supplier Material materials with Thermal conductivity of 28 W/(m·K)  
1100.0 °C  29 W/(m·K) Show Supplier Material materials with Thermal conductivity of 29 W/(m·K)  
Electrical
Property  Temperature  Value 

Electrical resistivity  20.0 °C  8.4E7 Ω·m Show Supplier Material materials with Electrical resistivity of 8.4E7 Ω·m 
100.0 °C  9.1E7 Ω·m Show Supplier Material materials with Electrical resistivity of 9.1E7 Ω·m  
200.0 °C  9.7E7 Ω·m Show Supplier Material materials with Electrical resistivity of 9.7E7 Ω·m  
300.0 °C  1.02E6 Ω·m Show Supplier Material materials with Electrical resistivity of 1.02E6 Ω·m  
400.0 °C  1.07E6 Ω·m Show Supplier Material materials with Electrical resistivity of 1.07E6 Ω·m  
500.0 °C  1.11E6 Ω·m Show Supplier Material materials with Electrical resistivity of 1.11E6 Ω·m  
600.0 °C  1.15E6 Ω·m Show Supplier Material materials with Electrical resistivity of 1.15E6 Ω·m  
700.0 °C  1.18E6 Ω·m Show Supplier Material materials with Electrical resistivity of 1.18E6 Ω·m  
800.0 °C  1.21E6 Ω·m Show Supplier Material materials with Electrical resistivity of 1.21E6 Ω·m  
900.0 °C  1.23E6 Ω·m Show Supplier Material materials with Electrical resistivity of 1.23E6 Ω·m  
1000.0 °C  1.26E6 Ω·m Show Supplier Material materials with Electrical resistivity of 1.26E6 Ω·m  
1100.0 °C  1.29E6 Ω·m Show Supplier Material materials with Electrical resistivity of 1.29E6 Ω·m  
Magnetic
Property  Temperature  Value 

Relative magnetic permeability  23.0 °C  1 [] Show Supplier Material materials with Relative magnetic permeability of 1 [] 
Chemical properties
Property  Value  Comment  

Carbon  0.08 % Show Supplier Material materials with Carbon of 0.08 %  
Cerium  0.05 % Show Supplier Material materials with Cerium of 0.05 %  To cerium should be added the quantity of other rare earth metals, since the the additive takes the form of misch metal containing about 50% Ce.  
Chromium  21 % Show Supplier Material materials with Chromium of 21 %  
Iron  Balance  
Manganese  0.8 % Show Supplier Material materials with Manganese of 0.8 %  max.  
Nickel  11 % Show Supplier Material materials with Nickel of 11 %  
Nitrogen  0.17 % Show Supplier Material materials with Nitrogen of 0.17 %  
Phosphorus  0.04 % Show Supplier Material materials with Phosphorus of 0.04 %  max.  
Silicon  1.6 % Show Supplier Material materials with Silicon of 1.6 %  
Sulfur  0.03 % Show Supplier Material materials with Sulfur of 0.03 %  max. 
Technological properties
Property  

Application areas  The high creep strength of Sandvik 253 MA, coupled with its excellent oxidation resistance and its good resistance to carburization in constantly carburizing gas, makes it a very suitable material for end uses in which 18/8 steels lack the necessary resistance to oxidation and carburization. Sandvik 253 MA is often preferred instead of stainless chromium steels which have insufficient creep strength and structural stability. Furthermore, Sandvik 253 MA can very well take the place of higher alloyed materials such as 25Cr/20Ni steels and Alloy 800H, or even Alloy 600 in certain cases. Sandvik 253 MA has come to be used extensively in the metallurgical, petrochemical and power industries. Typical applications are: Trademark information: 253 MA is a trademark owned by Outokumpu OY  
Certifications  Approvals: Approved for use in ASME Boiler and Pressure Vessel Code, Section I, III and VIII, Div. 1 (SA182, SA213, SA240, SA249 SA312 and SA479)  
Cold Forming  Annealing after cold bending is not normally necessary, but this should be reviewed depending on the degree of bending and the operating conditions. If cold bending has exceeded 10–20%, we recommend solution annealing for tubes that are to be used at temperatures above about 800°C (1450°F), and when the highest possible creep strength is required in the bent tube.  
Corrosion properties  Air: Sandvik 253 MA has very high resistance to oxidation, especially at cyclically varying temperatures. See Figs. 3 and 4. The service temperature in air should not exceed about 1150°C (2100°F). Isothermal oxidation at 1150°C (2100°F) for 100 h results in a corrosion rate of about 0.3 mm/year (13 mpy), and exposure at the same temperature for 1000 h causes about 0.2 mm/year (9 mpy). Cyclic oxidation at 1150°C (2100°F) for 5 x 24 h, with cooling to room temperature every 24 hours gives a corrosion rate of less than 1.1 mm/year (43 mpy), which is only marginally greater than the corrosion rate at 1000°C (1830°F). Cyclic oxidation testing for 1000 h (15 minutes at the testing temperature and 5 minutes at room temperature, making a total of 3000 cycles) places heavy demands on the elasticity and adhesive capacity of the oxide. The test results in Fig. 4 show that the resistance of Sandvik 253 MA in such difficult conditions is superior to that of both ASTM TP310 and EN 1.4828 (ASTM TP309). The very good properties of this grade in cyclic conditions have been achieved by adding rare earth metals and silicon. Carburizing atmosphere: Carburization can occur when a material comes into contact with hot gases with high carbon activity, e.g. hydrocarbons. The degree of carburization depends on the composition of the material and on the carbon and oxygen contents of the gas. Thanks to the relatively high chromium content and the addition of silicon and rare earth metals, a protective oxide is easily formed on the surface of Sandvik 253 MA material. Carburization resistance is, therefore, good. Fig. 5 shows carburization after 500 h at different temperatures, in a mixture of about 10% methane and about 90% argon containing 0.5% oxygen. As can be seen, Sandvik 253 MA is less prone to carburization at high temperatures in these conditions than ASTM TP310 and Alloy 800H. In alternately oxidizing and carburizing atmospheres and carburizing slags, Sandvik 253 MA is slightly more prone to carburization than steels of higher chromium and/or nickel content. Other gaseous atmospheres: In addition to its very good oxidation resistance in air, Sandvik 253 MA is also highly resistant to other atmospheres. The highly protective oxide layer makes it possible to use this steel at high temperatures in atmospheres containing sulphur and other aggressive compounds. Sandvik 253 MA is more resistant than the higher alloyed 25Cr/20Ni steels to combustion gas attacks in cyclic conditions. It has an equivalent resistance, compared to the same grades, in conditions which are virtually isothermal. Sandvik 253 MA can also be used in nitrogencontaining atmospheres provided that the gas contains enough oxygen to form a protective oxide layer. In gas shields containing little or no oxygen the resistance of Sandvik 253 MA is inferior to that of Alloy 800H and 25Cr/20Ni steels as illustrated in Fig. 6. Thus, the grade is not recommended for use in muffle tubes using cracked ammonia gas. Salt and metal melts: Compared with conventional austenitic stainless steels, Sandvik 253 MA has good resistance to cyanide melts and neutral salt melts and also to metal melts, e.g. lead, at high temperatures. Its resistance to metal melts is to a great extent determined by the oxygen content of the melt. As with other alloyed steels, corrosion is greatest at the surface of the metal bath. Wet corrosion: Sandvik 253 MA is not generally used in conditions requiring great resistance to wet corrosion. The steel is, however, slightly more resistant than ASTM TP304 to stress corrosion cracking in chloride bearing aqueous solutions. Its resistance is more or less the same as that of ASTM TP316.  
Heat Treatment  Tubes are delivered in the heat treated condition. If another heat treatment is needed after further processing the following is recommended: Stress relieving: 850950°C (15601740°F), 1015 minutes, cooling in air. Solution annealing: 1050–1150°C (1920–2100°F), 5–20 minutes, rapid cooling in air, gas or water.  
Hot forming  Hot bending should be carried out at 1100–850°C (2050–1560°F) and should be followed by solution annealing.  
Other  Forms of supply: Seamless tube and pipe in Sandvik 253 MA is supplied in dimensions up to 260 mm (10.2 in.) outside diameter in the solutionannealed and whitepickled condition or solution annealed by a brightannealing process. Sandvik 253 MA is also supplied in forms of: Wire, drawn or ground  
Structural Stability  Because Sandvik 253 MA contains less chromium, and because of the addition of nitrogen the grade is less prone to sigma phase embrittlement than 25Cr/20Ni steels. For more information please take a look at the figure on the right side of the material page.  
Welding  The weldability of Sandvik 253MA is good. Suitable methods of fusion welding are manual metalarc welding (MMA/SMAW) and gasshielded arc welding, with the TIG/GTAW method as first choice.In common with all austenitic stainless steels, Sandvik 253MA has low thermal conductivity and high thermal expansion. Welding plans should therefore be carefully selected in advance, so that distortions of the welded joint are minimized. If residual stresses are a concern, solution annealing can be performed after welding. For Sandvik 253MA, heatinput of <1.5 kJ/mm and interpass temperature of <150°C (300°F) are recommended. Recommended filler metals:
