Q235 Q235A Q235B H Profile Steel
Q235A, Q235B, Q235C, Q235D are the differences in grades. What they represent is mainly that the impact temperature is different. The difference between A, B, C and D refers to the difference in impact temperature in their performance.
They are: Q235A level, no impact; Q235B level, 20 degree normal temperature impact; Q235C level, 0 degree impact; Q235D level, -20 degree impact. At different impact temperatures, the impact values are also different. In terms of mechanical properties, Grade A only guarantees conventional tensile strength, yield strength and elongation; Grade B starts to add 180℃ cold bending and room temperature impact energy, Grade C guarantees 0℃ impact power, and Grade D guarantees -20℃ impact power. , the lowest value is 27J.
Products Details
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Product Name |
Q235 Q235A Q235B H Profile Steel |
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Standard |
ASTM, JIS, DIN EN,GB |
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Grade |
Q235,Q345B SS400, ST37-2, A36, S235JRG1, Q235, Q345 etc |
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Length |
6m 9m 12m or as customer's request |
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Widht |
37mm-88mm or as customer's request |
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Thickness |
1.5mm-25mm |
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Technique |
Hot rolled/Cold rolled |
q235 steel grade chemical composition
| Chemical Composition (heat analysis), %, ≤ | |||||||
| Steel Grade | Quality Grade | C | Si | Mn | P | S | Deoxidation Method |
| Q235 | Q235A | 0.22 | 0.35 | 1.40 | 0.045 | 0.050 | Rimmed / Killed |
| Q235B | 0.20 | 0.35 | 1.40 | 0.045 | 0.045 | Rimmed / Killed | |
| Q235C | 0.17 | 0.35 | 1.40 | 0.040 | 0.040 | Killed | |
| Q235D | 0.17 | 0.35 | 1.40 | 0.035 | 0.035 | Exceptionally Killed | |
q235 steel grade mechanical property
| Yield Strength (MPa, ≥); Thickness or Dia. (d) mm | Tensile Strength (MPa) | ||||||
| Steel Grade | Quality | d≤16 | 16< d ≤40 | 40< d ≤100 | 100< d ≤150 | 150< d ≤200 | d≤100 |
| Q235 | Q235A | 235 | 225 | 215 | 195 | 185 | 370-500 |
| Q235B | |||||||
| Q235C | |||||||
| Q235D | |||||||
q235 steel garde physical properties
| Physical Properties | |
| Density, g/cm3 | 7.85 |
| Melting point, ℃ | about 1493 |
| Specific heat capacity, J/(Kg·K) | 470 at 20 ℃ |
| Electrical resistivity, μΩ·m | about 0,15 (20 ℃) |
| Elastic modulus, GPa (kN/mm2) | 200 |
| Thermal conductivity, (W/m·K) | 53-49 (0-100 ℃) |
| Coefficient of thermal expansion, (10-6/K) | 11.3-11.6 (20 ℃) |
| Young’s modulus, GPa (kN/mm2) | 200 |
| Poisson’s ratio | 0.24-0.28 |
about q235 h section steel
Lightweight: One of the primary advantages of aluminum tubes is their lightweight nature. Aluminum has a low density, making it significantly lighter than other metals such as steel. This characteristic makes aluminum tubes ideal for applications where weight reduction is essential, such as in the aerospace, automotive, and transportation industries. The reduced weight also simplifies handling, installation, and transportation of aluminum tube-based systems.
Corrosion Resistance: Aluminum has inherent corrosion resistance properties. When exposed to the atmosphere, aluminum forms a thin oxide layer that protects the underlying metal from corrosion. This resistance to corrosion makes aluminum tubes suitable for various applications, including marine environments, outdoor structures, and chemical processing plants.
about gNEE group company description
Gnee (Tianjin) Trading Co., Ltd. is a dynamic and innovative trading company based in Tianjin, China. With a strong emphasis on quality, reliability, and customer satisfaction, Gnee Trading has established itself as a prominent player in the global trading industry. This comprehensive introduction will provide an overview of the company's history, business activities, core values, and achievements.
Established in 2008, Gnee(Tianjin) Trading Co., Ltd. has rapidly grown into a respected trading company with a diverse portfolio of products and services. The company's headquarters are strategically located in Tianjin, a major economic and trading hub in northern China. This advantageous location enables Gnee Trading to connect with both domestic and international markets, facilitating efficient trade and logistics operations:
When GNEE customers visited the company, the salesperson warmly received them and took photos. We look forward to more cooperation from new and old customers, and also warmly welcome your visit:
GNEE Company has signed first-level agency agreements with some large steel plants such as Baosteel, Maanshan Iron and Steel, and Anshan Iron and Steel, which has a strong price war advantage. We are committed to strict quality control and thoughtful customer service, and our experienced staff are always ready to listen to your requirements to ensure full customer satisfaction:
GNEE company has passed SGS CE ISO and other certifications, has complete testing equipment, strong technical force, and accepts factory testing. We firmly believe that "quality is the core of a company's sustainable strength". We will establish stable, long-term, win-win cooperative relationships with our customers and stick to them:
We can customize Q235 Q235A Q235B H Profile Steel and other products of different sizes and standards according to your needs, and provide customers with high-quality after-sales services. If you have any purchasing needs for steel products, please contact us!
FAQ
Q: Are you a trading company or a manufacturer?
A: We are a factory and a foreign trade company.
Q: How long is your delivery time?
A: If the goods are in stock, generally 5-10 days. Or 15-20 days if the goods are not in stock, it is based on the quantity.
Q: Do you provide samples? Is it free or extra?
A: Yes, we will provide free samples before mass production.
Q: What are your payment terms?
A: Payment<=1000USD, 100% prepayment. Payment >=$1000, 40% T/T in advance, balance before shipment.If you have any other questions, please feel free to contact us via the methods below.
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