Nascent Fittings Inc.·Duplex Steel
Duplex Steel HEX(A/F) BARS & SHAFTS
Round bars & shafts in SS, CS, alloy, duplex & nickel. Cut lengths with MTCs for machining, stems and industrial OEM supply.

- Material
- Duplex Steel
- Size
- Common diameters
- Grades
- Standards: ASTM, ASME, EN and project specs
- Corrosion
- Excellent
About
Duplex Steel Bars & Shafts
Product overview combined with Duplex Steel material context for project selection.
Round bars, shafts and related solid sections for machining, fasteners, stems and mechanical equipment. Nascent supplies stainless, alloy, carbon, duplex, nickel and copper-alloy bars in standard and cut lengths with mill certificates.
Bars are offered in common diameters and finishes for pump shafts, valve stems, fasteners and fabricated components—supporting maintenance and OEM industrial demand.
Manufacturing note
Nascent fittings produces high quality stainless steel hexagonal bars in stainless steel grades. It also manufactures corrosion resistance quality of stainless steel hexagonal bars which make them suitable for various applications. Nascent supplies stainless steel hexagonal bars cut to size in both small and large widths. The hexagonal bars range in thickness from 12 mm to 75 mm and are accompanied by Ultrasonic Test Reports, Chemical Test Reports, and Mechanical Test Reports. Our stainless steel bright hex bar is flexible to use in different manufacturing applications due to its high strength and corrosion resistance durability. It is also used in the manufacturing of nuts, valves, hose ends, fasteners and hex bolts. Hexagonal bars, also known as hex bars, are used for nuts, bolts and fasteners in a variety of industries such as; electrical, heating and plumbing and marine. Hex bars are also used in applications where the machining process is assisted through the shape or grade of material. Stainless steel square bars are certified to the highest industry standards and are accompanied by a Mill Test Certificate.
Typical applications
- Oil & Gas
- Petrochemical
- Chemical Processing
- Power Generation
- Marine
- Desalination
Configurations
Duplex Steel Bars & Shafts types
Open a type for drawings-aligned specifications.
Material scope
Duplex Steel specification
Dimensional and grade range typically supplied for HEX(A/F) BARS & SHAFTS in this material.
- Grade
- ASTM/ASME A/SA A105, LF2
- Grade
- ASTM/ASME A/SA F11, F22, F91 F12, F5, F9,
- Grade
- Special Grade: 4130 , 4140, 17-4 PH, 15-5 PH, 4122 etc.
- Grade
- ASTM/ASME A/SA-182, A/SA-479, 310, 321, 317L, 347, 309, 409, 410, 420, 430, 440, 904L, F304/304L/304H, 316/316L/316H/316Ti etc.
- Grade
- Duplex steel: UNS S32205, S31803
- Grade
- Super Duplex Steel: UNS S32750, S32760
- Grade
- Copper Nickel: C70600(90:10), C71500(70:30)
- Grade
- Hastelloy: UNS N10276, N06455, N06022, N10665,
- Grade
- Monel: UNS N04400, N05500,
- Grade
- Aluminium: 2024, 6061, 6063, 6101, 7075.
- Grade
- Titanium: Grade 1, Grade 2, Grade 4, Grade 5, Grade 6, Grade 7, Grade 9, Grade 19, Grade 23.
Also available in
Other materials for this product
View Bars & Shafts in another material grade family.
Scroll →

Material
Aluminium
Bars & Shafts
View
Material
Stainless Steel
Bars & Shafts
View
Material
Alloy Steel
Bars & Shafts
View
Material
Titanium
Bars & Shafts
View
Material
Carbon Steel
Bars & Shafts
View
Material
Monel
Bars & Shafts
View
Material
Hastelloy
Bars & Shafts
View
Material
Copper
Standards: ASTM, ASME, EN and project specs
View
Material
Low Temperature Carbon Steel
Bars & Shafts
View
Material
Nickel Alloy
Standards: ASTM, ASME, EN and project specs
View
Material
Copper Alloy
Standards: ASTM, ASME, EN and project specs
View
Material
Cupro Nickel
Bars & Shafts
ViewCompliance
Standards & certificates
Specifications and documentation typically referenced for this product line — details from our shared compliance catalog.
Standards
5ASTM
ASTMASTM International material and product specifications.
- Scope
- Umbrella reference for ASTM material grades used across the catalog.
- Applies To
- Carbon, alloy, stainless, duplex and nickel-alloy piping products
ASME
ASMEAmerican Society of Mechanical Engineers — boiler, pressure vessel and piping codes.
- Scope
- Umbrella reference for ASME dimensional and material standards used on this product line.
- Applies To
- Flanges, fittings, pipes and related pressure components
EN
CENEuropean Norms for materials, flanges and fittings.
- Scope
- Umbrella reference for EN material and flange standards.
- Applies To
- EU-specified piping materials and PN flanges
ASTM A182
ASTMForged or rolled alloy and stainless steel pipe flanges, fittings, valves and parts.
- Scope
- Forged and rolled stainless, alloy and duplex steel components for high-temperature service.
- Applies To
- Flanges, fittings, valves and pressure parts
- Typical Grades
- F304/L, F316/L, F11, F22, F91, F51/F60 and related
ASME SA182
ASMEASME equivalent of ASTM A182 for forged stainless and alloy components.
- Scope
- Boiler and pressure vessel code adoption of ASTM A182 material requirements.
- Related
- ASTM A182
Certificates
5EN 10204 3.1
Mill test certificate with inspection by the manufacturer’s authorized inspection representative, independent of manufacturing.
- Type
- Inspection document (MTC)
- Scope
- States chemical analysis, mechanical test results and heat / lot identification for the supplied material.
- Documentation
- EN 10204 Type 3.1
- Benefit
- Provides traceable material evidence required on most industrial RFQs.
NACE MR0175
Materials for use in H₂S-containing environments in oil and gas production.
- Type
- Service / sour-service requirement
- Scope
- Limits hardness, microstructure and material selection for sulfide stress cracking resistance.
- Applies To
- Carbon, alloy and CRA piping products ordered for sour service
- Benefit
- Supports upstream oil & gas projects specifying sour-service compliance.
ISO 9001
Quality Management System certification.
- Type
- Quality Management System
- Scope
- Demonstrates a documented QMS covering process control, traceability and continual improvement across manufacturing and supply.
- Benefit
- Assures buyers of consistent product quality and controlled production practices.
- Issued As
- Third-party accredited certificate
PED
Pressure Equipment Directive compliance for equipment placed on the EU market.
- Type
- Regulatory conformity
- Scope
- Design and conformity assessment requirements for pressure equipment and assemblies in the European Union.
- Benefit
- Enables supply of pressure-rated components into EU projects when PED conformity is required.
- Related
- CE marking / Notified Body routes as applicable
IBR
Indian Boiler Regulations approval for boiler-quality piping materials and components.
- Type
- Regulatory approval
- Scope
- Materials and components intended for use under Indian boiler installations.
- Benefit
- Required for many power and process projects under IBR jurisdiction in India.
People also ask
Questions about Bars & Shafts
Nascent Fittings Inc. answers common buyer questions for this line.
Does Nascent Fittings Inc. manufacture Bars & Shafts?+
Yes. Nascent Fittings Inc. manufactures and supplies Bars & Shafts for industrial piping projects, with material grades and sizes aligned to project specifications.
Can Nascent Fittings Inc. export Bars & Shafts worldwide?+
Yes. We export Bars & Shafts globally with standard export packaging, material test certificates, and documentation support for international shipments.
What materials are available for Bars & Shafts?+
Bars & Shafts is available in carbon steel, alloy steel, stainless steel, duplex, nickel alloys, copper alloys, aluminium, titanium and other project-specific materials as required.
Need pricing for Duplex Steel HEX(A/F) BARS & SHAFTS?
Share sizes, material grade and quantity — manufacturing options and delivery timelines follow.










