253 MA [S30815] Round Bar

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253 MA [S30815] Round Bar Specification

Finish
Bright, Black, Polished

Diameter
10 mm to 350 mm

Grade
253 MA

Application
Industrial, Construction, Petrochemical, Oil & Gas, Power Generation, Heat Exchangers

Material
253 MA (UNS S30815) Stainless Steel

Standard
ASTM A276, ASTM A479

Length
3 meter to 6 meter or as required

Type
Round Bar

Processing
Peeled, Turned, Ground

Technique
Hot Rolled, Forged

Tolerance
H9, H11, or as specified

Specific Use
High Temperature Components, Kiln Liners, Furnace Parts

Machinability
Good machinability with proper tools

Elongation
35% min

Packaging
Standard export packing or as per client requirements

Form
Solid Bar

Corrosion Resistance
Excellent - especially in high temperature environments

Surface Condition
Smooth, Free from scale and cracks

Heat Resistance
Up to 1150°C (continuous service)

Tensile Strength
>600 MPa

Density
7.8 g/cm³

Melting Point
1400°C to 1450°C

Yield Strength
310 MPa min

Hardness
max 220 HB

Weldability
Good, can be welded by common methods

253 MA [S30815] Round Bar About

What Are Specification 253 MA [S30815] Round Bar?

Specifications	ASTM A276 / ASME SA276 & ASTM A479 / ASME SA276
Range	3.17 MM TO 350 MM DIA
Dia Meter	25mm to 152mm
Length	1 to 6 Meters, Custom Cut Lengths
Finish	Bright, Polish & Black
Form	Round, Square, Hex (A/F), Rectangle, Billet, Ingot, Forging etc
Condition	Cold Drawn & Polished Cold Drawn, Centreless Ground & Polished

Equivalent material Of 253 MA [S30815] Round Bar?

STANDARD	WERKSTOFF NR.	UNS	SS	EN
253 MA	1.4835	S30815	2368	X9CrNiSiNCe21-11-2

Chemical Composition Of 253 MA [S30815] Round Bar?

Grade	C	Mn	Si	S	Ce	Ni	Cr	P
253 MA	0.05 - 0.10	0.80 max	1.40 - 2	0.030 max	0.03 - 0.08	10 - 12	20 - 22	0.040 max

Mechanical Properties Of 253 MA [S30815] Round Bar?

Density	Melting Point	Tensile Strength	Yield Strength (0.2%Offset)	Elongation
8.0 g/cm3	1320-1390	650	300	35 %

Superior Heat and Corrosion Resistance

253 MA round bars are engineered to perform exceptionally well in environments exposed to prolonged high temperatures, up to 1150C in continuous service. Their excellent oxidation and corrosion resistance make them ideal for components in industries like petrochemical, power generation, and furnace engineering where reliability under thermal stress is critical.

Versatile Machinability and Fabrication

Combining good machinability with excellent weldability, 253 MA round bars can be processed using standard machining and welding techniques. Whether turned, peeled, or ground, these bars maintain a smooth, defect-free surface, making them suitable for custom fabrication according to client-specific dimensions and finishing requirements.

Wide Range of Applications

Engineered for versatility, 253 MA round bars are widely used for high temperature applications such as kiln liners, furnace parts, boiler components, and more. Their robust mechanical properties and durability enable them to withstand challenging working conditions across construction, oil & gas, and industrial manufacturing sectors.

FAQs of 253 MA [S30815] Round Bar:

Q: How does the 253 MA (S30815) round bar perform in high temperature environments?

A: The 253 MA round bar excels in high temperature conditions, maintaining structural stability and corrosion resistance up to 1150C in continuous service. Its composition allows it to withstand oxidation and scaling, making it an ideal choice for furnace and kiln components.

Q: What are the main benefits of using 253 MA round bars in industrial applications?

A: Users benefit from superior heat and corrosion resistance, high mechanical strength (tensile >600 MPa, yield 310 MPa), and excellent formability. This alloy ensures longevity and reliability, reducing downtime and maintenance costs in harsh environments.

Q: Where can 253 MA (S30815) round bars be used?

A: These bars are widely used in industries requiring robust performance at elevated temperatures, including petrochemical plants, power generation, oil & gas facilities, heat exchangers, kiln liners, and furnace construction.

Q: What machining and finishing processes can be applied to 253 MA round bars?

A: 253 MA round bars offer good machinability with appropriate tools and can be processed through peeling, turning, or grinding for smooth, polished, or black finishes. They are also available in different tolerances such as H9 and H11.

Q: How are 253 MA round bars packaged and supplied?

A: They are supplied in lengths of 3 to 6 meters (or as specified), with standard export packaging or customized solutions as per client requirements. Surface condition is assured to be smooth, free from cracks and scale, ensuring safe delivery.

Q: What welding methods are compatible with 253 MA round bars?

A: 253 MA round bars exhibit good weldability and can be joined using common welding processes such as TIG, MIG, and arc welding, following standard stainless steel procedures for optimal results.

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