253ma Stainless Steel Pipe 253ma Stainless Steel Hollow Bar UNS S30815

253ma stainless steel pipe 253ma stainless steel hollow bar UNS S30815 1 253MA is an austenitic, chromium-nickel stainless steel with heat resistance and high strength 2 Similar material DIN 1.4835 3 size vary from OD10 to 200mm

253ma stainless steel pipe 253ma stainless steel hollow bar UNS S30815

253MA stainless steel is a high temperature resistant material with excellent strength, corrosion resistance and heat resistance. It is also known for its high oxidation resistance, making it a popular choice for high temperature applications such as furnace components, heat exchangers and exhaust systems.

UNS S30815 is a high-alloy austenitic stainless steel with a high nitrogen content that enhances its chemical stability and has excellent corrosion resistance. In addition, the presence of chromium, nickel and manganese in its composition increases its strength and toughness.

253MA stainless steel is also available in hollow bar form, which offers excellent dimensional accuracy and precision and can be used for a variety of applications such as drilling, boring and machining. In addition, the hollow bar form offers convenient customization as it can be cut to the desired length, making it a prime raw material for manufacturing complex structures and components.

Material	DIN253ma
Chemical Composition	Mechanical Properties(In Quenched & Tempered State)
C	0.05-0.10	Tensile strength(MPA)
Si	1.40-2.00	Yield strength (MPA)
N	0.14-0.20	Elongation(δ5/%)
Cr	20.00-22.00	Reduction in Area (ψ/%)
Mo		Impact (J)
P	≤0.035	Hardness
S	≤0..030
CE	0.03-0.08
Ni	10.00-12.00

2. Heat Treatment Solution Treatment (Annealing) Heat to 1050-1150°C and cool rapidly. It is recommended that the material be solution treated after 10-20% cold work to achieve maximum creep strength in service. This grade cannot be hardened by thermal treatment.

3.Welding Excellent weldability by all standard fusion methods. AS 1554.6 pre-qualifies welding of S30815 with matching Grade 22.12HT rods or electrodes. Grade 309 fillers can be used if lower creep strength can be tolerated. Pure argon shielding gas should be used.

4.Possible Alternative Grades

Grade	Why it might be chosen instead of 253MA (UNS S30815)
310	Carburising atmospheres require a higher nickel content.
304H	Lower cost alternative, with lower creep strength, for use up to about 800°C.
321H	Lower cost alternative, with lower creep strength, for use up to about 800°C
Nickel Alloys	Carburising atmospheres or temperatures above the 1100 - 1150°C maximum of S30815.