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High pressure pipe







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    Title: High Pressure Pipe 1
    Brief introduction: There are many ways to classify steel, and there are eight main methods: 1. Classification by quality (1) ordinary steel (phosphorus P≤0.045%, sulfur S≤0.050%) (2) high-quality steel (P, S are all ≤0.035%) (3) High-quality steel (P≤0.035%, S≤0.030%) 2. Classified by chemical composition (1) Carbon steel: a. Low carbon steel (carbon C≤0.25%); b Medium carbon steel (carbon C≤0.25 ~ 0.60%); c. High carbon steel (carbon C≤0.60%). (2) Alloy steel: a. Low alloy steel (total content of alloy elements ≤5%); b. Medium alloy steel (total content of alloy elements> 5 to 10%); c. High alloy steel (total content of alloy elements>. ..... [ detailed ]
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