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Stainless Steel 904L Round Bars

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Stainless Steel 904L Round Bars Specification

Product Form
Round Bar

Hardness
220 HB (Brinell Hardness)

Diameter
6mm to 200mm (or custom)

Material Composition %
Cr 1923%, Ni 2328%, Mo 45%, Cu 12%, Mn 2%, C 0.02%, P 0.045%, S 0.035%, balance Fe

Heat Resistance
Good up to 400C (752F)

Coating Type
Uncoated/No external coating

Size
6mm to 200mm diameter, custom lengths

Tensile Strength
490710 MPa

Recyclable
Yes

Corrosion Resistant
Yes, Excellent resistance to acids and chloride stress corrosion

Product Name
Stainless Steel 904L Round Bars

Steel Type
Stainless Steel

Steel Product Type
Round Bars

Grade
904L

Thickness
Customizable, standard sizes available

Shape
Round

Steel Standard
ASTM A276, ASTM A479, EN 10088-3

Surface
Bright, Polished, Peeled, Black, Matt

Composition
1923% Cr, 2328% Ni, 45% Mo, 12% Cu, max 2% Mn, max 0.045% P, max 0.035% S, max 0.02% C, balance Fe

Application
Construction, Chemical Processing, Oil & Gas, Marine, Power Plants, Heat Exchangers, Pharmaceutical Industries

Dimension (L*W*H)
As per customer requirement or standard sizes

Weight
Varies with size and length

Color
Metallic Silver/Grey

Material Grade
904L

Finish Type
Polished, Bright

Usage
Suitable for high-corrosive environments and process industries

About Stainless Steel 904L Round Bars

What Are Specification Stainless Steel 904L Round Bars?

Specifications :	ASTM A276, ASME SA276 / ASTM A479 ASME SA479
Round Bars :	Outside Diameter in the range of 4mm to 500mm
Bright Bars :	Outside Diameter in the range of 4mm to 100mm
Hex Bars :	18mm 57mm (11/16 to 2-3/4)
Square Bars :	18mm 47mm (11/16 to 1-3/4)
Length :	1 to 6 Meters, Custom Cut Lengths
Form :	Round, Square, Hex (A/F), Rectangle Etc.
Finish :	Black, Bright Polished, Rough Turned, NO.4 Finish, Matt Finish, BA Finish

Equivalent material Of Stainless Steel 904L Round Bars?

STANDARD	WERKSTOFF NR.	UNS	JIS	BS	KS	AFNOR	EN
SS 904L	1.4539	N08904	SUS 904L	904S13	STS 317J5L	Z2 NCDU 25-20	X1NiCrMoCu25-20-5

Chemical Composition Of Stainless Steel 904L Round Bars?

Grade	C	Mn	Si	P	S	Cr	Mo	Ni	Cu
SS 904L	0.020 max	2 max	1 max	0.040 max	0.030 max	19.0-23.0	4.0-5.0 max	23.00 28.00	1.0-2.0

Mechanical Properties Of Stainless Steel 904L Round Bars?

Density	Melting Point	Tensile Strength	Yield Strength (0.2%Offset)	Elongation
7.95 g/cm3	1350 C (2460 F)	Psi 71000 , MPa 490	Psi 32000 , MPa 220	35%

Superior Corrosion and Heat Resistance

904L Stainless Steel Round Bars provide extraordinary resistance against acids, chlorides, and harsh chemical environments. The alloys atomic structure, combined with a balanced mixture of chromium, nickel, molybdenum, and copper, ensures excellent performance up to 400C and protects against chloride stress corrosion cracking, making it a preferred choice for high-corrosive process industries.

Versatile Applications Across Industries

Engineered for versatility, these round bars suit a wide range of sectors including power plants, oil & gas, chemical processing, marine, pharmaceutical, and heat exchanger manufacturing. Their adaptability across indoor and outdoor installations and compatibility with various fabrication methods underscore their value for both structural and process-critical uses.

Quality Standards and Inspection Assurance

Manufactured in compliance with ASTM, ASME, EN, DIN, and JIS standards, every batch of Stainless Steel 904L Round Bars undergoes rigorous quality checks. Third party inspection is offered, ensuring each product meets high-quality benchmarks and maintains safety and reliability in demanding environments.

FAQs of Stainless Steel 904L Round Bars:

Q: How are Stainless Steel 904L Round Bars typically delivered and stored to preserve quality?

A: These bars are delivered in hot rolled, annealed and pickled, cold drawn, or polished conditions, with end finishes including plain, bevelled, or threaded. For optimal preservation, storage should be indoors on dry surfaces and sealed packaging, such as in wooden cases or bundled, is recommended to prevent contamination or corrosion.

Q: What makes Stainless Steel 904L Round Bars suitable for use in high-corrosive environments?

A: The alloys compositionrich in chromium, nickel, molybdenum, and copperprovides excellent resistance to acids and chloride-induced stress corrosion. Its non-magnetic nature and bright polished finish further enhance durability in harsh chemical and marine environments.

Q: Which industries commonly use Stainless Steel 904L Round Bars and why?

A: Industries such as construction, chemical processing, oil & gas, marine, pharmaceutical, heat exchangers, and power plants value these bars for their exceptional corrosion, heat resistance, and reliable mechanical properties, especially when exposed to aggressive media and elevated temperatures.

Q: What standards do Stainless Steel 904L Round Bars comply with, and how does this benefit users?

A: These round bars conform to ASTM, ASME, EN, DIN, and JIS standards, ensuring high quality and consistency in international markets, and providing assurance of performance, compatibility, and safety in critical applications.

Q: How can the dimensions and end finishes be customized for project requirements?

A: 904L Round Bars are supplied in diameters from 6mm to 200mm or as per customer specifications, with customizable lengths and a choice of plain, bevelled, or threaded ends. This flexibility enables manufacturers and engineers to match exact application needs.

Q: Is Stainless Steel 904L recyclable, and what environmental advantages does it offer?

A: Yes, the product is fully recyclable. Its long service life, resistance to degradation, and the ability to reuse or repurpose the material contribute to sustainable building and equipment practices.

Q: What inspection and testing options are available for Stainless Steel 904L Round Bars?

A: Third party inspection is accepted, and bars undergo stringent quality control to ensure compliance with specified standards and mechanical, chemical, and dimensional properties before dispatch.

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