ASTM A36 Carbon steel bar/rod

ASTM A36 Carbon steel bar/rod

Steel Grade:Q195,Q235,Q345,45#, S20C, SAE1010,SAE1020.SAE1045,EN8,EN 19fC45,CK45,SS400 etc
Standard:ASTM A615Gr40/60,BSS4449 Gr460B,500B etc.
Diameter: 6mm-1200mm.
Length: 3000mm-12000mm or as client's request
Tolerance: +0.5mm/-0(dia),+5mm/-0(L)
Heat treatment: Normalized / Annealed / Quenched / tempered
Surface: black,mill,polished,brush,etc
Test: Ultrasonic test according to SEP 1921-84 G3 C/c
Application: Widely used in construction industry for reinforcing concret(Express way; office building, Bridge etc) Trasportation By sea(20' 40' container), parts of larger cross-sections, crankshafts, gears.

Product  Description


Round steel is a long strip of steel with a solid cross section. Its specifications are expressed in millimeters in diameter. They are divided into three types: hot-rolled, forged, and cold-drawn. The hot-rolled specifications are 5.5-250 mm. They are often used as steel bars, bolts, and various Mechanical parts, round steel larger than 25 mm is mainly used to manufacture mechanical parts and seamless steel tube billets.


Carbon steel rod.jpg

Product Name  carbon steel round bar
Place of Origin Shandong, China
Standard  AiSi, ASTM, bs, DIN, GB, JIS
Grade  HRB335/HRB400/HRB500
Length   6m/9m/12m or as customer request
Tolerance  ±1%
Tensile strength300N/mm² , 360N/mm² , 435N/mm²
Technique  Hot Ribbed Steel Rebar
Price TermCIF CFR FOB EX-WORK
MOQ 1 Ton
Payment Term  30%T/T Advance + 70% Balance
Packing  Standard Sea-worthy Packing
Type   Plate
Certification ISO,CE


Chemical Composition

CCuFeMnPSiS
0.25~0.2900.2098.01.030.0400.2800.050


Mechanical Behavior

A36ultimate tensile strengthTensile strength and yield strengthBreak Elongation (in 200mm)Break Elongation (in 50mm)modulus of elasticityVolume modulus (typical value of steel)Poisson ratiomodulus of shearing
the metric system400~550MPa250MPa20.0%23.0%200GPa140GPa0.26079.3GPa
British system58000~79800psi36300psi20.0%23.0%29000ksi20300ksi0.26011500ksi



Physical Property

physical propertythe metric systemBritish system
density7.85 g/cm30.284 lb/in3


Applied Range

Bolt, riveted or welded structures for bridges, construction and oil rigs, etc.

 It is used for forming storage tanks, bin, bearing plate, fixture, ring, formwork, clamp, fixture, sprocket, cam, gear, bottom plate, forgings, decoration engineering, piles, supports, automobile and agricultural equipment, frame, mechanical parts, etc.


Peer Material

Guo Biao GBEuropean standard ENAmerican-Standard ASTMDe standard DIN, WNrday mark JISThe French standard, AFNORBS BSCanada HG
Q235BS235JRA283CSt37-2SM400AE24-240A/40B230G
Italy UNIIndia ISSwitzerland SSONORM, AustraliaNorway NSSpain UNEinternational standard ISOPortuguesa NP
Fe360BIS20621311/1312RSt360BNS12123AE235B-FNE235


Full-Link Trust Service System

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—— Guarantee services

Pre-sales Trust Services (Reducing Decision-Making Risks)

Free Samples: We provide free samples accompanied by material certificates, allowing customers to inspect the products before placing orders.

Virtual Factory Tour + Live Factory Inspection: We offer appointment-based virtual factory tours (covering production lines, laboratories and warehouses).

Customized Solutions: Based on customers' application scenarios, applicable standards, budgets and delivery schedules, we provide multiple sets of steel selection and cost comparison solutions, with clear marking of quality risk points and corresponding control measures.

—— Guarantee services

Pre-sales Trust Services (Reducing Decision-Making Risks)

Free Samples: We provide free samples accompanied by material certificates, allowing customers to inspect the products before placing orders.

Virtual Factory Tour + Live Factory Inspection: We offer appointment-based virtual factory tours (covering production lines, laboratories and warehouses).

Customized Solutions: Based on customers' application scenarios, applicable standards, budgets and delivery schedules, we provide multiple sets of steel selection and cost comparison solutions, with clear marking of quality risk points and corresponding control measures.

—— Guarantee services

In-sales Transparent Management (Full Process Traceability)

Production Live Streaming: For orders from large customers, we provide real-time live streaming and short videos of the production process, enabling customers to witness the quality control work on site.

Loading Supervision Service: We support loading supervision by customers themselves or third-party institutions, with photo and video records provided as evidence.

Logistics Visualization: We provide bills of lading, real-time logistics tracking information and estimated port arrival time, enabling customers to inquire about the logistics status at any time.

—— Guarantee services

In-sales Transparent Management (Full Process Traceability)

Production Live Streaming: For orders from large customers, we provide real-time live streaming and short videos of the production process, enabling customers to witness the quality control work on site.

Loading Supervision Service: We support loading supervision by customers themselves or third-party institutions, with photo and video records provided as evidence.

Logistics Visualization: We provide bills of lading, real-time logistics tracking information and estimated port arrival time, enabling customers to inquire about the logistics status at any time.

—— Guarantee services

After-sales Support Services (Building Long-Term Trust)

Technical Support: We offer professional guidance on steel application, recommendations for welding processes, diagnosis of quality problems, and provide free technical training (both online and offline).

Customer Profile Management: We establish exclusive service profiles for each customer, recording order details, quality inspection results, delivery information and after-sales records. We conduct regular follow-up visits and proactively remind customers of inventory status and new product launches.

—— Guarantee services

After-sales Support Services (Building Long-Term Trust)

Technical Support: We offer professional guidance on steel application, recommendations for welding processes, diagnosis of quality problems, and provide free technical training (both online and offline).

Customer Profile Management: We establish exclusive service profiles for each customer, recording order details, quality inspection results, delivery information and after-sales records. We conduct regular follow-up visits and proactively remind customers of inventory status and new product launches.

why choose us

Precision Manufacturing

Equipped with advanced production lines and a skilled workforce, we ensure high dimensional accuracy and consistent quality in every batch. Our 19 years of OEM/ODM experience enable us to handle complex custom requirements with precision and efficiency.

Material Science

We specialize in copper and aluminum materials, with in-depth knowledge of their properties and applications. From standard alloys to specialized compositions, we provide material solutions optimized for conductivity, strength, and corrosion resistance.

Quality Controll

Our manufacturing process is backed by rigorous quality inspections at every stage—from raw material selection to final packaging. We adhere to international standards to ensure reliable performance and long-term durability of all products.

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Product Showcase

Whether it's standard industrial profiles or complex irregular structures, we can provide reliable aluminum solutions to global customers with efficient delivery and consistent quality.

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