A36/Q235/S235JR Carbon Steel Plate
A36, Q235, and S235JR are versatile hot-rolled carbon structural steel plates widely used in construction and general fabrication. Manufactured to ASTM, GB, and EN standards respectively, they provide a cost-effective solution for various industrial projects. Common applications include building structures, bridges, shipbuilding, and general engineering components requiring robust performance.
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PRODUCT DETAILS
Our Mild Carbon Steel Plates are available in multiple international standards, including ASTM A36, GB Q235, and EN S235JR. These are the most widely used low-carbon steel grades globally, offering excellent weldability, formability, and cost-effectiveness for general structural and engineering applications. While they conform to different regional specifications (American, Chinese, and European), their mechanical properties are largely comparable, making them interchangeable for many projects. Each grade ensures reliable performance in construction, machinery, and fabrication.
Product Parameters |
|
| Product Name | A36/Q235/S235JR Carbon Steel Plate |
| Production Process | Hot Rolling, Cold Rolling |
| Material Standards | AISI, ASTM, ASME, DIN, BS, EN, ISO, JIS, GOST, SAE, etc. |
| Width | 100mm-3000mm |
| Length | 1m-12m, or Customized Size |
| Thickness | 0.1mm-400mm |
| Delivery Conditions | Rolling, Annealing, Quenching, Tempered or Standard |
| Surface Process | Ordinary, Wire Drawing, Laminated Film |
Chemical Composition |
||||||
| C | Cu | Fe | Mn | P | Si | S |
| 0.25~0.290 | 0.2 | 98 | 1.03 | 0.04 | 0.28 | 0.05 |
Mechanical Properties |
|||
| A36 | Limit Tensile Strength | Yield Strength | Elongation at Break |
| (Unit: 200mm) | |||
| Metric | 400~550MPa | 250MPa | 20.00% |
| Imperial | 58000~79800psi | 36300psi | 20.00% |
Scope of Application
Bolted, riveted or welded structures for bridges, buildings and oil drilling rigs.
Used for forming storage tanks, silos, bearing plates, fixtures, rings, templates, fixtures, sprockets, cams, gears, bottom plates, forgings, decoration engineering, piles, brackets, automobiles and agricultural equipment, frames, mechanical parts, etc.
Comparison Table: A36 vs. Q235 vs. S235JR
| Parameter | ASTM A36 | GB Q235 | EN S235JR |
| Standard / Region | American (ASTM) | Chinese (GB) | European (EN) |
| Material Number | – | – | 1.0038 |
| Carbon (C) max | 0.25 – 0.29% | 0.17 – 0.22% | 0.17 – 0.20% |
| Manganese (Mn) | 0.80 – 1.20% | 0.30 – 0.70% | ≤ 1.40% |
| Yield Strength (min) | 250 MPa (36 ksi) | 235 MPa (for thickness ≤16mm) | 235 MPa (for thickness ≤16mm) |
| Tensile Strength | 400 – 550 MPa | 370 – 500 MPa | 360 – 510 MPa |
| Impact Test | Not required | Optional (often 20°C) | Required at 20°C (27J) |
| Typical Applications | Structural steel, bridges, buildings | General fabrication, automotive frames | Construction, machinery, welded parts |
ONLINE MESSAGE
CUSTOMER VISIT
APPLICATION
Ship
Chemical Industry
Electricity
Oil and gas transportation
FAQ
1. How to get samples to check the quality? How long can I get the samples?
Answer:After confirming the price, we are happy to provide samples for your evaluation. After confirming the sample details, the samples will be ready for delivery within 3-7 days, and sent to you by courier, and arrive within 3-5 days.
2.Do you provide samples ? is it free or extra ?
Answer:We provide samples free of charge, but the customer is responsible for the courier freight.
3. Do you accept the third party inspection?
Answer: Yes absolutely we accept.
4.Can you accept customization?
Answer:Yes. If you have special requirements on products or packages, we can do customization for you.
5.How do you control the quality?
Answer:We have professional inspectors to analyze chemical composition of raw materials and test the finished products strictly according to standard stipulated in the contract. In this process, Internal and external surfaces, two ends appearance, bending degree, fixed length, outer diameter and wall thickness dimension etc will be checked one by one. You can be assured that all the products you get from us are reliable.
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