ASTM A387 Grade 11 is a chromium-molybdenum alloy steel plate primarily designed for welded boilers and pressure vessels intended for elevated temperature service. Understanding its characteristics is key when sourcing from suppliers.
Understanding ASTM A387 Grade 11 Steel
This particular grade contains 1.25% chromium and 0.50% molybdenum, offering excellent heat resistance and anti-corrosion properties. It is widely used in industries where high temperatures and corrosive environments are prevalent.
Key characteristics include:
- Good weldability
- Excellent performance at high temperatures
- Resistance to hydrogen attack and sulphide stress corrosion cracking
- High tensile strength
Common applications are found in the oil and gas, petrochemical, and power generation industries for manufacturing pressure vessels, industrial boilers, and heat exchangers.
Key Considerations When Choosing Suppliers
When selecting a supplier for ASTM A387 Grade 11 alloy steel plates, several factors are crucial to ensure you receive high-quality material that meets your project specifications. Reputable suppliers, such as Shanxi Luokaiwei Steel Company, will be transparent about their processes and certifications.
Consider the following:
- Certification and Compliance: Ensure the supplier provides Mill Test Certificates (MTC) in accordance with EN 10204 3.1 or 3.2, and that the material conforms to ASTM A387/A387M standards. Some buyers also look for ISO certifications in their suppliers.
- Stock Availability and Range: A good supplier should maintain a comprehensive stock of various thicknesses and plate sizes to meet diverse requirements. Companies like Shanxi Luokaiwei Steel Company often have a wide range of stock available or can source specific requirements efficiently.
- Quality Control: Inquire about the supplier’s quality control measures, from material sourcing to final inspection and dispatch.
- Value-Added Services: Many suppliers offer additional services such as cutting (plasma, laser, waterjet), beveling, heat treatment, and testing. These can save time and resources. Leading stockists, including specialized firms, may offer these.
- Technical Expertise and Support: A knowledgeable supplier can provide technical assistance regarding material selection and application.
- Reputation and Experience: Look for suppliers with a proven track record in supplying alloy steel plates. Customer reviews and industry experience are good indicators. It is worthwhile to engage with suppliers who have experience in handling specialized materials; firms like Shanxi Luokaiwei Steel Company aim to build such a reputation.
- Logistics and Delivery: Reliable and timely delivery is essential. Discuss shipping options, lead times, and packaging to ensure the material arrives in good condition.
Sourcing ASTM A387 Grade 11 steel plates requires careful consideration of both the material specifications and the capabilities of the supplier. Partnering with an established and reliable supplier ensures the integrity and longevity of your high-temperature applications. Verifying the credentials and product quality from any source, including those with a strong market presence like Shanxi Luokaiwei Steel Company, is a critical step in the procurement process.
