PDF《15CrMoG alloy steel tube》

Sunny Steel Enterprise Ltd.

Collect Steel pipe and fitting Resources Http://www.sunnysteel.com E-mail: [email protected] Page:1 of 15CrMo Alloy steel tube.docx 15CrMoG alloy steel tube The 15CrMo steel pearlite heat-resistant steel, high hot strength (δ b ≥ 440MPa) and oxidation resistance at high temperatures, and has a certain resistance to hydrogen corrosion. As the steel contains a higher content of Cr, C, and other alloying elements, the steel hardened tendency obvious, poor welding. 15CrMo 钢系珠光体组织耐热钢 Tag: ASTM A210, Seamless medium carbon steel tube, ASTM A210 Grade A1, ASTM A210 Grade C, Boiler tube 15CrMo 钢系珠光体组织耐热钢,在高温下具有较高的热强性(δ b≥440MPa)和抗氧化性,并具有一定的抗氢腐 蚀能力. Application For high, middle, low pressure boiler and pressure purpose 15CrMoG alloy tube of the principles of the purified hydrogen at 300-500 ℃, the hydrogen to be purified is passed through one side of the 15CrMoG alloy tube, the hydrogen is adsorbed on 15CrMoG alloy wall, palladium 4d electron shell lacks two electronics, it can with the hydrogen generating unstable chemical bonds (palladium and hydrogen, this reaction is reversible), palladium, hydrogen is ionized proton whose radius is 1.5 *1015m, while the lattice constant of Sunny Steel Enterprise Ltd. Collect Steel pipe and fitting Resources Http://www.sunnysteel.com E-mail: [email protected] Page:2 of 15CrMo Alloy steel tube.docx palladium 3.88x 10-10M (20 °C time), it can be through 15CrMoG alloy tube role of palladium proton combined with electronic and re-formation of the hydrogen molecules to escape from the other side of the 15CrMoG alloy tube. In the 15CrMoG the surface of the alloy tube, not dissociated gas impermeable, can therefore be to use 15CrMoG alloy tube to obtain high purity hydrogen. Chemical Compositions (%) of 15CrMoG Elements Data Carbon 0.12-0.18 Silicon 0.17-0.37 Manganese 0.40-0.70 Phosphorus(max) 0.03 Sulfur(max) 0.03 Chromium 0.80-1.10 Molybdenum 0.40-0.55 Cuprum(max) 0.2 Nickel(max) 0.3 Mechanical Properties of 15CrMoG Yield Strength (Mpa) 450-600 Tensile Strength (Mpa)

270 Elongation (%)

22 Sunny Steel Enterprise Ltd. Collect Steel pipe and fitting Resources Http://www.sunnysteel.com E-mail: [email protected] Page:3 of 15CrMo Alloy steel tube.docx The W.T. tolerance of 15CrMoG W.T.(S) Tolerance of W.T.

20 D