Grade 253MA (UNS S30815)253MA is a grade combining excellent service properties at high temperatures with ease of fabrication. It resists oxidation at temperatures up to 1150°C and can provide superior service to Grade 310 in carbon, nitrogen and sulphur containing atmospheres.

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Dear valued customers,As the holiday season approaches,we would like to take a moment to express our sincerest gratitude for your continued support and trust in our company.It has been an absolute pleasure serving you throughout the year. On behalf of our entire team, we want to wish you a Merry Chr

In 2021, the Mid-Autumn Festival falls on September 21st (Tuesday).We will have a 3-days public holiday from September 19th to 21st.Ruiyang company wish all our friends have A happy Mid-Autumn Festival,family happiness,good health and good luck in everything!Why do we celebrate the Mid-Autumn Festiv

A large-diameter, relatively low-pressure pipe string set in shallow yet competent formations to protect fresh-water aquifers onshore. Second, the surface casing provides minimal pressure integrity, and thus enables a diverter or perhaps even a blowout preventer (BOP) to be attached to the top of th