253 MA
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253 MA 253 MA
253 MA
253 MA
253 MA
253 MA
  • Description
Jiangsu Be Alloy Co.,Ltd produce special alloy products, including Bar,Rod,Sheet,Plate,Pipe,Tube Pipe Fittings,Rings,Forgings,Flange Coil and Strip,if any requirements not found, Please email us sales@bealloy.com. We will offer you best price and more details. Any customization are accepted.
  • 253 MA is a lean austenitic heat resistant alloy with high strength and outstanding oxidation resistance. 253 MA maintains its heat resistant properties by advanced control of micro alloy additions. The use of rare earth metals in combination with silicon gives superior oxidation resistance up to 2000°F. Nitrogen, carbon and a dispersion of rare earth and alkali metal oxides combine to provide creep rupture strength comparable to the nickel base alloys. A wide variety of components requiring high strength at elevated temperatures such as heat exchangers, kilns, stack dampers and oven components are common applications for 253 MA.

  • Chemical Composition, %

    Cr

    Ni

    C

    Si

    Mn

    20.0-22.0

    10.0-12.0

    0.05-0.10

    1.40-2.00

    0.80 Max

    P

    S

    N

    Ce

    Fe

    0.040 Max

    0.030 Max

    0.14-0.20

    0.03-0.08

    Balance


  • Some characteristics of 253 MA
    Excellent oxidation resistance to 2000°F
    High creep-rupture strength
    In what type of applications is 253 MA used?
    Burners, Boiler Nozzles
    Petrochemical and refinery tube hangers
    Heat exchangers
    Expansion bellow
    Stack dampers

  • Mechanical Properties Annealed Material

    Specified Limits Minimum

    Typical Range

    Ultimate Tensile Strength, psi

    87,000

    90,000-114,000

    .2% Offset Yield Strength, psi

    45,000

    45,000-69,000

    Elongation in 2", %

    40

    42-70

    Reduction of Area, %

    50

    -

    Hardness Rockwell B

    -

    Rb 90


  • Fabrication and Welding with Stainless 253 MA
    253 MA Stainless steel is readily fabricated by standard commercial procedures. In comparison to carbon steel, stainless steels are tougher and tend to work harden rapidly. However, with positive feeds and slow speeds combined with abundant cutting fluid this alloys tendency to work harden may be minimized.
    Stainless 253 MA can be welded using conventional welding processes. Filler metal should be of similar composition for maximum weld integrity and properties.

  • ASTM Specifications

    Plate

    Bar

    Pipe Smls

    Pipe Welded

    A240, A480, A167

    A276, A479

    A213, A312

    A312, A358, A409, A813, A814



Alloy

ASTM

DIN

Nitronic 50

UNS S20910


Nitronic 60

UNS S21800


Alloy 20

UNS N08020

2.4660

Alloy 28

UNS N08028

1.4563

Sanicro 28

UNS N08028

1.4563

Alloy 31

UNS N08031

1.4562

Alloy 59



904L

UNS N08904

1.4539

253 MA

UNS S30815


254 SMO

UNS S31254

1.4547

AL-6XN


1.4529

F55(S32760)

UNS S32760

1.4501

F53(2507)

UNS S32750

1.4410

F51(2205)

UNS S31803

1.4462

F60(2205)

UNS S32550


329(SUS329J4L)

UNS S32900


2304


1.4362

80NI-20CR



660


1.4980

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