1.4410 stainless steel round rods

GNEE supplies Super Duplex Stainless Steel Round Bars compliant with EN 1.4410 (X2CrNiMoN25-7-4) standards, specifically designed for extremely demanding corrosive environments such as marine engineering, oil and gas, chemical processing, and seawater desalination. These materials are ideal for manufacturing pump shafts, valve stems, propeller shafts, fasteners, and pressure vessel components.

 

We can provide EN 1.4410 Super Duplex Stainless Steel Round Bars with diameters ranging from Φ6 mm to Φ500 mm and lengths from 0.5 meters to 30 meters (custom sizes available). Product forms include hot rolled round bars, forged round bars, cold drawn bars, ground bright bars, and black surface bars. Deep processing services such as cutting, turning, forging, and heat treatment are also supported to meet various machining and structural application requirements.

EN 1.4410 stainless steel bars feature a Pitting Resistance Equivalent Number (PREN) of ≥42, providing outstanding resistance to pitting corrosion, crevice corrosion, and stress corrosion cracking in high-chloride environments such as seawater and oil & gas media containing H₂S/CO₂. Their corrosion resistance performance significantly exceeds that of austenitic stainless steels such as 316L and conventional duplex stainless steels like 1.4462.

 

1.4410 Stainless Steel Round Rods Specifications

Specification	ASTM A276 and ASTM A479
Standard	EN, DIN, JIS, BS, AISI, API, ASTM, ASME,
Sizes	3 To 450 MM Diameter
Length	3 to 6 meter or Custom Lengths
Flat Bar Sizes	3 * 20* 20 ~ 12* 100* 100 MM
Square Bar Sizes	4* 4~100* 100 MM
Finish	NO.4 Finish, Centreless Ground, Rough Turned, Black, Bright Polished, Polish, Grinding, BA Finish and Matt Finish
tolerance of bar	H13K9, H8, H9, K12, H10, H12, H11,K10, K11 or clients requirements
Condition	Sheared and Edged, Cold Drawnd Polished Cold Drawn, Rolled Flat, Annealed Supplier & Manufacturer
Technique	Cold Drawn, Hot Rolled, Cold Rolled, Forged

 

EN 1.4410 Round Bar Chemical Composition

Cr	Ni	Mo	C	N
22.0-23.0	4.50-6.50	3.00-3.50	.030 Max	0.14-0.20
Mn	Si	P	S	Fe
2.00 Max	1.00 Max	.030 Max	.020 Max	Balance

 

Mechanical Properties of EN 1.4410 Round Bar

Property	Typical Value
Yield Strength (Rp0.2)	≥ 550 MPa
Tensile Strength	750 – 950 MPa
Elongation	≥ 15%
Impact Toughness (−46°C)	≥ 40 J
Hardness	≤ 290 HB

 

ASTM A276 UNS S32750 Forged Bar Standards

GNEE supplies a wide range of Super Duplex Stainless Steel F53 bars and ASTM A276 UNS S32750 round bars.

Type	Sizes in MM	Sizes in Inch	ISO (tolernace)
polished & Cold drawn bar	3 to 75	1/8 to 3	h10, h8, h11, h9
ground & Cold drawn bar	10 to 75	5/6 to 2.50	h10, h8, h11, h9
polished & peeled bar	40 to 150	1.50 to 6	H11 and Din 1013
ground & peeled bar	20 to 50	3/4 - 2	H11/ H10/ H9

Click to Check 1.4410 Stainless Steel Bar Stock Availability

 

Is EN 1.4410 stainless steel bar magnetic?

Yes, EN 1.4410 (Super Duplex) stainless steel bar is magnetic. Because it has a mixed microstructure of approximately 50% ferrite and 50% austenite, the high ferritic content allows it to be attracted to magnets. This distinguishes it from common 300-series austenitic stainless steels, which are non-magnetic.

 

Can EN 1.4410 round bars be welded?

Yes, EN 1.4410 (Super Duplex 2507/S32750) round bars can be welded, as they possess good weldability. They are commonly joined using methods like GTAW (TIG), SMAW (stick), and SAW. Proper technique is essential, requiring specific filler metals (e.g., [ER2594]), controlled heat input, and low interpass temperatures to maintain corrosion resistance.

 

EN 1.4410 Round Bars price per kg

The price of EN 1.4410 (Super Duplex 2507) round bars typically ranges from $15 to $50 per kilogram, depending on the supplier, order quantity, and surface finish (e.g., bright bar or black bar). For large-volume orders, the price may drop to approximately $18 to $20 per kilogram.

 

GNEE is a trusted Chinese supplier of precipitation-hardening stainless steels and specialty alloys. We offer round bars in alloys 2205, 2507, and 904L, available in a diverse range of product forms including bars, plates, profiles, and forgings. All products are sourced from certified steel mills and undergo rigorous testing for chemical composition and mechanical properties to ensure reliable quality.