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ASTM A490 Threaded Rods Manufacturer & Exporter in India

Explore ASTM A490 Threaded Rods Manufacturer & Exporter in India manufactured for demanding industrial applications with reliable strength, corrosion resistance and compliance with international standards.
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-196

Min Temp

870

Max Temp

🌡

870

Suitable for continuous service up to approximately 870°C under typical operating conditions.

⚡

620

Typical tensile strength around 620 MPa depending on product form and heat treatment.

🛡

Very Good

Very Good corrosion resistance in a wide range of industrial environments.

⚖

8

Typical density is approximately 8.0 g/cm³.

Product Overview

What are ASTM A490 Threaded Rods?

ASTM A490 threaded rods are high-strength, quenched and tempered alloy steel fasteners designed for structural bolting applications requiring superior tensile and yield strength. Manufactured from alloy steel conforming to ASTM A490, these rods are heat treated to achieve a minimum tensile strength of 150 ksi (1040 MPa), making them suitable for critical connections in steel structures, bridges, and heavy machinery.

Unlike standard ASTM A193 or A307 threaded rods, ASTM A490 threaded rods are not intended for general-purpose use but are specified where high preload and structural integrity are essential. They are supplied with coarse threads (UNC) and are available in diameters from ½” to 1½”, with custom lengths and threading options available for project-specific requirements.

Quick Specifications

MaterialAlloy Steel (ASTM A490)
UNS NumberK10430 (typical)
DIN Number1.7225 (42CrMo4)
Material StandardASTM A490
Threaded Rod StandardASME B18.31.3
Thread FormUNC (Unified Coarse)
Diameter Range½"-1½" (M12-M36)
Tensile Strength150 ksi (1040 MPa) min
Yield Strength130 ksi (895 MPa) min
HardnessRockwell C 33-39
? All rods supplied with full mechanical and chemical certification. Third-party inspection available.

Complete the Fastener Set

Other ASTM A490 Fastener Products Available from RealBolt

RealBolt also manufactures the complete ASTM A490 fastener range from certified alloy / carbon steel bar stock, including ASTM A490 Bolts, ASTM A490 Nuts, ASTM A490 Screws, ASTM A490 Washers, and ASTM A490 Studs. All ASTM A490 fastener types are produced to ASTM with full EN 10204 MTC 3.1/3.2 documentation.
ASTM A490 Bolts
ASTM A490 Nuts
ASTM A490 Screws
ASTM A490 Washers
ASTM A490 Studs

Technical Data

ASTM A490 Threaded Rods Dimensions, Sizes & Thread Standards

ASTM A490 Threaded Rods are available in metric M6–M100 and inch ¼″–4″ as standard. Per ASME B18.31.3 (Unified Inch Threaded Rods). Custom cut lengths and full/partial threading available. Metric equivalents available on request. All ASTM A490 threaded rods dimensions are verified against applicable DIN, ISO, and ASME B18 standards before

Threaded Rod Dimensions - Inch (ASME B18.31.3)

Nominal Size (in)Thread Pitch (TPI)Core Diameter (in)Max Length (in)
½130.405144
?110.509144
¾100.614144
?90.729144
180.835144
1¼71.073144
1½61.304144
? Custom cut lengths and metric sizes available on request.

Dimensional & Material Standards

StandardCoversThread
ASTM A490High-strength threaded rodsUNC
ASME B18.31.3Threaded rod dimensionsUNC
ASTM F436Hardened washers-
ASTM A563Heavy hex nutsUNC
ISO 898-1 (Class 10.9)Metric equivalentsMetric
Material StandardRequirement
ASTM A490Alloy steel, quenched & tempered
ASTM A563Compatible nuts
ASTM F436Compatible washers
EN 10204 3.1Mill test certificate
EN 10204 3.2TPI-witnessed MTC

Material Chemistry

ASTM A490 Threaded Rod Chemical Composition

ASTM A490 Threaded Rods are manufactured from chromium-molybdenum alloy steel with Cr (0.8–1.1%), Mo (0.15–0.65%), and vanadium additions in B16 grades, controlled per ASTM and ASME SA-193. Cr-Mo additions raise hardenability and creep rupture strength for pressure vessel service; vanadium in B16 extends the allowable service temperature to 538°C.

Chemical Composition per ASTM A490

ElementComposition (%)
Carbon (C)0.38-0.53
Manganese (Mn)0.65-1.35
Phosphorus (P)0.035 max
Sulfur (S)0.040 max
Silicon (Si)0.15-0.35
Chromium (Cr)0.45 max
Nickel (Ni)0.25 max
Molybdenum (Mo)0.20 max
Boron (B)0.003 max
? All heats verified by spectrographic analysis. Full traceability provided.

Why ASTM A490 Alloy Composition Matters for Threaded Rods

High Carbon Content
The elevated carbon content (0.38–0.53%) is essential for achieving the high tensile and yield strength required by ASTM A490 after quenching and tempering.
Alloying Elements
Manganese, chromium, and molybdenum enhance hardenability and toughness, ensuring the rods maintain strength and ductility even in large diameters and long lengths.
Strict Impurity Limits
Low phosphorus and sulfur levels minimize the risk of embrittlement and ensure reliable performance in structural applications.

Fastener Performance

ASTM A490 Threaded Rods Mechanical Properties & Torque Reference

The table below lists mechanical properties and torque reference for ASTM A490 Threaded Rods per ASTM. ASTM A490 threaded rods achieve 620 MPa tensile strength, with hardness, yield, and elongation values verified by NABL-accredited testing and reported in the EN 10204 MTC.

Recommended Torque Values - ASTM A490 Threaded Rods

Rod Size (in)Dry Torque (Nm)Lubricated Torque (Nm)Clamp Load (kN)
½27021556
?43034590
¾750600145
?1200960210
118001440275
1¼32002560445
1½48003840650
?? Lubrication: Lubricated values assume K=0.15. Use only approved structural bolt lubricants. Do not use anti-seize on ASTM A490 rods as it may affect preload and slip resistance.

Industry Applications

ASTM A490 Threaded Rods Applications — Industries & End Uses

ASTM A490 Threaded Rods from RealBolt are specified across oil and gas pressure vessels, power generation, and petrochemical where very good corrosion resistance and 620 MPa tensile strength are required for reliable fastener performance. Click each industry below for detailed application examples.
ASTM A490 threaded rods are widely used for structural connections in steel bridges, high-rise buildings, and stadiums where high preload and slip-critical performance are required. They are specified for column splices, beam-to-column joints, and base plate anchoring in seismic and wind-resistant structures.
These rods are ideal for anchoring heavy equipment, presses, turbines, and industrial machinery to concrete foundations, providing the high clamping force and fatigue resistance needed for dynamic loads and vibration.
A490 threaded rods are specified for bolted connections in wind turbine towers, transmission line pylons, and substation structures, where high strength and long-term reliability are critical under cyclic loading.
Used in conveyor supports, crusher frames, and mining headframes, ASTM A490 threaded rods deliver the strength and durability needed for harsh, high-load environments.

ASTM A490 Threaded Rods Standards & International Certifications

ASTM A490 Threaded Rods from RealBolt Engineering Industries are manufactured to internationally recognised fastener dimensional standards covering thread form, tolerances, strength grades, and quality requirements. Every batch ships with EN 10204 MTC 3.1/3.2, hardness test certificate, dimensional inspection report, and proof load test records — available on request for all orders.
Standards
DIN 975 DIN 976-1 ASME B18.31.2 IS 1367 IS 1364 SAE J429
Certifications
ISO 9001:2015EN 10204 3.1EN 10204 3.2CE MarkingPED 2014/68/EU

Buy ASTM A490 Threaded Rods from India's Leading Manufacturer — Get a Competitive Quote Today

Partner with RealBolt — India’s leading manufacturer of certified ASTM A490 Threaded Rods — for competitive pricing, EN 10204 MTC 3.1/3.2 documentation, and fast Mumbai dispatch. Standard sizes are ex-stock; custom dimensions accepted with 2–3 week lead time. Request your quote today.
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Answers for Buyers

ASTM A490 Threaded Rods — Frequently Asked Questions

Browse expert answers to common questions about ASTM A490 Threaded Rods from RealBolt — covering ASTM A193 grade, proof load, creep ratings, cryogenic L7 limits, coating options, and EN 10204 documentation. Contact our technical team directly for project-specific guidance on ASTM A490 threaded rods selection and pricing.
ASTM A490 threaded rods are supplied with Unified National Coarse (UNC) threads per ASME B1.1 as standard. Metric threads (ISO 261/965) are available on request for international projects. Custom thread pitches and partial/full threading can be provided to suit specific engineering requirements.
No, ASTM A490 threaded rods must not be hot-dip galvanized or mechanically galvanized, as hydrogen embrittlement risk is significant for high-strength alloy steel. Only zinc-aluminum coatings (such as Geomet or Dacromet) or plain black finish are permitted per ASTM A490.
ASTM A490 threaded rods are not recommended for welding due to their high carbon and alloy content, which can lead to cracking and loss of mechanical properties. If welding is unavoidable, consult with a qualified welding engineer and follow preheat and post-weld heat treatment procedures.
Standard sizes (½”-1¼”) are available ex-stock with no formal MOQ – single rods can be supplied for urgent requirements. Custom diameters, lengths, or coatings may require a minimum order of 10 rods or 20 kg. Quantity discounts apply at 50, 200, and 500 rods.

Industrial Cities We Serve:

  • Ahmedabad
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  • Bengaluru
  • Chennai
  • Coimbatore
  • Faridabad
  • Gandhidham
  • Greater Noida
  • Gurugram
  • Hazira
  • Hosur
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  • Ludhiana
  • Mumbai
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