As a kind of high-quality carbon structural steel, Q275 carbon steel is widely used in construction, machinery manufacturing and engineering fields with its excellent mechanical properties and economy. With the acceleration of industrialization and infrastructure construction, the demand for Q275 carbon steel continues to grow, and it has become an indispensable and important material in modern industry. Ⅰ. Properties of Q275 carbon steel Q275 carbon steel belongs to the ordinary carbon structural steel, its chemical composition mainly includes iron (Fe), carbon (C), manganese (Mn), silicon (Si) and a small amount of sulfur (S) and phosphorus (P). This material has the following significant characteristics: 1. high strength: Q275 carbon steel has high tensile strength and yield strength, able to withstand large loads and stresses, suitable for high-strength structural components. 2. good workability: easy to cut, weld, bend and mold, suitable for a variety of processing techniques to meet the needs of complex design. 3. Economy: relatively inexpensive and cost-effective, ideal for engineering and construction fields. 4. Weather resistance: good corrosion resistance in ordinary environment, suitable for general structural parts. 5. Wide applicability: it can be used in a variety of structural and mechanical components to meet the needs of different industries....

2025/04/11   Plummeting Exports to the U.S. Drive Chinese Firms Toward Emerging Markets Since the U.S. imposed 25% tariffs on steel and aluminum imports in 2018, China’s steel exports to America have faced severe contraction. Data from the U.S. International Trade Commission (USITC) reveals that China’s share of U.S. steel imports dropped sharply from 12% in 2017 to less than 3% in 2022, with high-end products like seamless pipes and silicon steel sheets hit hardest. Industry analysts note that the tariffs have effectively blocked access to the U.S. market, forcing Chinese steelmakers to pivot toward Southeast Asia, the Middle East, and Africa. Vietnam, for instance, saw a 15% surge in steel imports from China in 2022, intensifying regional competition and pressuring local prices. Domestic Market Strains and Policy Responses The export slump has exacerbated China’s domestic steel oversupply. In 2022, China produced 1.013 billion tons of crude steel, but weak demand from the property sector pushed inventories higher and dragged prices toward production cost thresholds. To address the imbalance, Beijing has doubled down on capacity reduction policies, cutting crude steel output by approximately 20 million tons in 2023. Simultaneously, infrastructure investments under the 14th Five-Year Plan—including high-speed rail and renewable...

SS400 steel is a common general structural steel, widely used in construction, bridges, machinery manufacturing, shipbuilding and other fields. The “SS” in its name stands for “Structural Steel”, while “400” indicates its minimum tensile strength of 400 MPa. SS400 is favored worldwide as a cost-effective steel with stable performance.

Benefits: Lower Fuel Costs Fuel expenses account for a significant portion of operating costs in the shipping industry (approximately 30%-50%). A decline in oil prices means lower costs for marine fuel (such as low-sulfur fuel and heavy fuel oil), directly improving the profit margins of shipping companies. Enhanced Freight Competitiveness Lower fuel prices reduce operational costs, allowing shipping companies to offer more competitive freight rates. This is particularly beneficial for companies that rely on long-term contracts. Improved Profitability Reduced fuel costs increase profit margins, enabling shipping companies to better manage debt repayment, improve cash flow, and invest in ship upgrades and environmental improvements. Potential Increase in Shipping Demand Lower oil prices can reduce global trade costs, promoting import and export activities and driving up shipping demand, especially for container shipping and dry bulk transportation. Drawbacks: Potential Decline in Freight Rates, Weakening Profitability As oil prices fall and operational costs decrease, companies may engage in price competition by lowering freight rates. This could lead to an overall decline in market freight rates, weakening industry profitability, particularly for companies that rely on high freight rates. Reduced Investment in Alternative Fuels and Environmental Initiatives Lower oil prices may discourage shipping companies from investing...

1. Structure composition Duplex stainless steel: As the name suggests, the microstructure of duplex stainless steel is composed of two phases: ** austenite ** and ** ferrite **, and the usual ratio is 50% austenite and 50% ferrite. This structure gives it excellent strength, corrosion resistance and crack resistance. Ordinary stainless steel: Austenitic stainless steel (such as 304, 316) is mainly composed of austenitic structure, has good toughness and corrosion resistance, but the strength is low. Ferritic stainless steel (such as 430) is mainly composed of ferritic, has high corrosion resistance and good oxidation resistance, but poor toughness, easy to embrittlement. 2. Mechanical properties Duplex stainless steel: Due to the combination of ferritic and austenitic phases, duplex stainless steel usually has higher tensile strength and yield strength, which is higher than austenitic stainless steel and can usually withstand greater loads. Ordinary stainless steel: Austenitic stainless steel has a lower strength, and although it has better ductility and toughness, it may not be as good as duplex stainless steel in applications with high strength requirements. The strength of ferritic stainless steel is higher than that of austenite, but it is relatively brittle. 3. Corrosion resistance Duplex stainless steel: has excellent corrosion...

1. Chemical Composition 304L Stainless Steel: Contains 18%-20% chromium (Cr) and 8%-12% nickel (Ni). The “L” indicates low carbon content, typically ≤0.03%, which improves its weldability. 316L Stainless Steel: Similar to 304L, but with an additional 2%-3% molybdenum (Mo). The molybdenum enhances its corrosion resistance, especially in chloride environments. 2. Corrosion Resistance 304L: Offers good corrosion resistance in most atmospheric and mildly corrosive environments. 316L: The addition of molybdenum gives 316L superior corrosion resistance, particularly in chloride-rich environments like seawater or chemical exposure. 3. Mechanical Properties Both grades have similar mechanical properties, but 316L may offer slightly better performance in certain high-temperature applications. 4. Weldability Both 304L and 316L are low-carbon versions, which give them excellent weldability. 5. Applications 304L: Commonly used in food processing, household items, architectural decoration, medical devices, etc. 316L: Ideal for marine, chemical processing, pharmaceuticals, oil & gas, and other industries where high corrosion resistance is required, particularly in environments involving chlorides and strong acids. 6. Price 316L is generally more expensive than 304L because the addition of molybdenum increases its corrosion resistance but also raises the cost. In summary, 316L is more corrosion-resistant than 304L, especially in harsh chemical or marine environments.   Gavin  +86...