Alloy Steel Round Bars Supplier, Stockist & Exporter
SteelNix supplies Alloy Steel Round Bars for forged components, flanges, fasteners, shafts, gears, valves, pressure equipment, oil & gas parts, power plants, machinery and high-strength engineering applications. Explore ASTM A182 F1, F5, F9, F11, F12, F22, F91, F92, ASTM A193 B7, B16, AISI 4130, 4140, 4145, 4145H, SAE 8620 and SAE 8630 grades in one complete product hub.
Quick Product Range
Alloy Steel Round Bars
SteelNix offers a complete Alloy Steel Round Bars range for buyers who need high strength, toughness, heat resistance, pressure service performance and reliable machining or forging quality. This single product page helps buyers compare all major alloy steel round bar grades in one place.
One Complete Alloy Steel Bar Range
Our Alloy Steel Round Bars range includes black bars, bright bars, forged bars, hot rolled bars, peeled bars, rough turned bars and machined bars. Grades include ASTM A182 pressure-service alloy grades, ASTM A193 bolting grades, AISI chromium-molybdenum grades and SAE case-hardening alloy steel grades.
Suitable for Industrial & Project Supply
SteelNix supports stockists, OEMs, fabricators, machining shops, forging units, fastener manufacturers, power plant suppliers, oil & gas contractors and industrial buyers with grade selection, material availability, MTC support and export-ready supply for Alloy Steel Round Bars.
Specification, Chemical Composition & Mechanical Properties
The details below give buyers a practical overview of Alloy Steel Round Bars. Final specifications, chemical limits and mechanical values may vary by grade, heat treatment condition, diameter, finish, tolerance and order requirement.
Product Specifications
SteelNix can supply Alloy Steel Round Bars in standard and project-based sizes. Share your grade, diameter, length, quantity and delivery location for accurate pricing.
| Product Detail | Specification |
|---|---|
| Product Name | Alloy Steel Round Bars |
| Product Forms | Round Bars, Bright Bars, Black Bars, Hot Rolled Bars, Forged Bars, Peeled Bars, Rough Turned Bars and Machined Bars |
| Common Standards | ASTM, ASME, AISI, SAE, EN, DIN and equivalent project standards as per customer requirement |
| Available Grades | ASTM A182 F1, F5, F9, F11, F12, F22, F91, F92, ASTM A193 B7, ASTM A193 B16, AISI 4130, AISI 4140, AISI 4145, AISI 4145H, SAE 8620 and SAE 8630 |
| Common Finish | Black, bright, peeled, polished, forged, hot rolled, rough turned, centerless ground and machined finish as per requirement |
| Common Applications | Forged components, flanges, fasteners, shafts, gears, valves, pressure equipment, oil & gas components, power plant parts, machinery and high-strength engineering applications |
| Documents | Material Test Certificate, inspection reports, test certificates and dispatch documents as per order terms |
Chemical Composition
| Grade Group | Type | Key Elements | Key Feature | Typical Use |
|---|---|---|---|---|
| ASTM A182 F1 / F5 / F9 / F11 / F12 / F22 | Chrome-Moly Alloy Steel | Chromium, molybdenum, carbon and controlled alloying elements | Good high-temperature and pressure service performance | Forged fittings, flanges, valves, power plants and refinery components |
| ASTM A182 F91 / F92 | High-Temperature Alloy Steel | Chromium, molybdenum, vanadium and grade-specific strengthening additions | Strong creep and high-temperature performance | Power plants, turbines, boilers and high-temperature pressure parts |
| ASTM A193 B7 / B16 | Alloy Steel Bolting Grade | Chromium, molybdenum and controlled carbon chemistry | High strength for bolting and pressure service | Studs, bolts, nuts, fasteners, flanges and pressure assemblies |
| AISI 4130 / 4140 / 4145 / 4145H | Chromium-Molybdenum Alloy Steel | Chromium, molybdenum and medium carbon chemistry | High strength, toughness and machinability after suitable treatment | Shafts, gears, tooling, oilfield parts and machinery components |
| SAE 8620 / SAE 8630 | Nickel-Chromium-Molybdenum Alloy Steel | Nickel, chromium, molybdenum and controlled carbon content | Good case hardening, toughness and wear resistance potential | Gears, shafts, pins, machinery parts and automotive components |
Mechanical Properties
| Grade Group | Strength Level | Machinability | Heat / Pressure Performance | Service Area |
|---|---|---|---|---|
| A182 F1 to F22 | Grade-specific strength for pressure service | Good with correct tooling and heat condition | Good elevated-temperature performance | Flanges, fittings, valves and refinery components |
| A182 F91 / F92 | High strength and creep-resistant performance | Requires controlled machining practice | Excellent high-temperature pressure service | Power plants, boilers and critical pressure parts |
| A193 B7 / B16 | High-strength bolting performance | Good for fastener manufacturing | Pressure and temperature service depending on grade | Stud bolts, fasteners and flange assemblies |
| AISI 4130 / 4140 / 4145 / 4145H | Medium to high strength potential | Good machining after suitable condition | Heat treatment dependent | Shafts, gears, tooling, machinery and oilfield parts |
| SAE 8620 / SAE 8630 | Good toughness and case hardening performance | Good for machined and case-hardened parts | Application dependent | Gears, pins, shafts and wear-resistant components |
Alloy Steel Round Bar Grades
Explore the complete Alloy Steel Round Bars range supplied by SteelNix for forging, machining, fasteners, flanges, shafts, gears, valves, power plants, oil & gas and engineering applications.
Alloy Steel A182 F11 Round Bars
Chrome-moly alloy steel bar for flanges, fittings and pressure parts.
Ask PriceAlloy Steel A182 F12 Round Bars
Used for pressure service components, valves, flanges and fittings.
Ask PriceAlloy Steel A182 F1 Round Bars
Low alloy steel bar for forged pressure and refinery components.
Ask PriceAlloy Steel A182 F22 Round Bars
Chrome-moly grade for high-temperature pressure applications.
Ask PriceAlloy Steel A182 F5 Round Bars
Alloy steel bar for refinery, power and pressure service equipment.
Ask PriceAlloy Steel A182 F91 Round Bars
High-performance alloy bar for power plants and critical pressure service.
Ask PriceAlloy Steel A182 F92 Round Bars
Creep-resistant alloy steel bar for high-temperature power applications.
Ask PriceAlloy Steel A182 F9 Round Bars
Chrome-moly alloy grade for pressure components and thermal service.
Ask PriceAlloy Steel A193 B16 Round Bars
High-strength bolting grade for pressure and temperature service.
Ask PriceAlloy Steel A193 B7 Round Bars
Common alloy steel grade for studs, bolts and flange fasteners.
Ask PriceAlloy Steel AISI 4130 Round Bars
Chromium-molybdenum alloy bar for shafts, tooling and oilfield parts.
Ask PriceAlloy Steel AISI 4140 Round Bars
High-strength alloy steel bar for shafts, gears and machinery components.
Ask PriceAlloy Steel AISI 4145H Round Bars
Controlled hardenability grade for oilfield, tool and heavy-duty parts.
Ask PriceAlloy Steel AISI 4145 Round Bars
Strong alloy steel bar for shafts, drilling tools and industrial components.
Ask PriceAlloy Steel SAE 8620 Round Bars
Case-hardening alloy steel bar for gears, pins and wear-resistant parts.
Ask PriceAlloy Steel SAE 8630 Round Bars
Tough alloy steel bar for gears, shafts, machinery and oilfield components.
Ask PriceApplications of Alloy Steel Round Bars
Alloy Steel Round Bars are selected for strength, toughness, hardenability, heat resistance, pressure service performance and reliable machining or forging quality.
Fasteners & Bolting
Used for studs, bolts, nuts, threaded rods and high-strength fastener components.
Flanges & Fittings
Suitable for forged flanges, fittings, valves and pressure service components.
Shafts & Gears
Used for shafts, gears, pins, axles, rollers and heavy-duty machinery parts.
Power & Oilfield Parts
Applied in power plants, boilers, turbines, oilfield tools and drilling components.
Industries We Serve
SteelNix supports project buyers, stockists, OEMs, fabricators, machining shops, forging units, fastener manufacturers and maintenance teams with Alloy Steel Round Bars.
Oil & Gas
Flanges, fittings, fasteners, pressure parts, drilling tools and oilfield components.
Power Plants
High-temperature pressure parts, boiler components, turbine parts and fasteners.
Engineering
Shafts, gears, tooling, machinery components and high-strength industrial parts.
Manufacturing
Automotive parts, heavy equipment components, forged products and machined parts.
Testing & Documents
SteelNix can arrange documentation and inspection support based on product grade, quantity, project specification and order terms.
MTC
Material Test Certificate can be provided for supplied Alloy Steel Round Bars.
PMI Testing
Positive Material Identification can be arranged where required by the buyer.
Mechanical Testing
Tensile, hardness, impact and related testing support can be arranged as per requirement.
Inspection
Visual, dimensional and third-party inspection support can be offered as applicable.
Frequently Asked Questions
Helpful answers for buyers searching for Alloy Steel Round Bars from SteelNix.
Which Alloy Steel Round Bar grades does SteelNix supply?
SteelNix supplies ASTM A182 F1, F5, F9, F11, F12, F22, F91, F92, ASTM A193 B7, ASTM A193 B16, AISI 4130, AISI 4140, AISI 4145, AISI 4145H, SAE 8620 and SAE 8630 round bars.
What are Alloy Steel Round Bars used for?
Alloy Steel Round Bars are used for forged components, flanges, fasteners, shafts, gears, valves, pressure equipment, oil & gas parts, power plant components, machinery and high-strength engineering applications.
What is the difference between A182 and A193 alloy steel bars?
ASTM A182 grades are commonly used for forged pressure components such as flanges, fittings and valves. ASTM A193 grades are commonly used for high-strength bolting and fastener applications.
Which alloy steel round bar grades are used for high-temperature service?
A182 F11, F12, F22, F91, F92 and A193 B16 are commonly used where elevated-temperature or pressure service performance is required. Final selection should follow the project specification.
Which alloy steel grades are used for shafts and gears?
AISI 4130, AISI 4140, AISI 4145, AISI 4145H, SAE 8620 and SAE 8630 are commonly used for shafts, gears, pins, machinery parts and oilfield components.
Can SteelNix provide Material Test Certificates?
Yes, Material Test Certificates and inspection documents can be provided as per order terms, product availability and customer requirements.
How can I get a price for Alloy Steel Round Bars?
To receive a quotation, share the grade, diameter, length, finish, quantity, standard, delivery location and any inspection or documentation requirement.
Need Alloy Steel Round Bars?
Share your required grade, diameter, length, finish, quantity, standard and delivery location. SteelNix will help you with material availability, pricing and technical support.