PDF《12Cr1MoV alloy steel pipe》

Sunny Steel Enterprise Ltd.

Collect Steel pipe and fitting Resources Http://www.sunnysteel.com E-mail: [email protected] Page:1 of 12Cr1MoV alloy steel pipe.docx 12Cr1MoV alloy steel pipe 12Cr1MoV steel creep very close to the limit with lasting strength value with high ductility, and in the case of persistent stretching. Process resistance and weldability of the steel is good, but before welding was preheated to

300 ° C, required after welding stress-relief processing. 用于低中压锅炉(工作压力一般不大于 5.88Mpa,工作温度在 450℃以下)的受热面管子 Tag: 12Cr1MoV, Boiler steel pipe, Alloy steel tube, GB5310- 2008, High Pressure Boiler Seamless Steel Pipe, 12Cr1MoV alloy steel pipe 主要特性 此钢与 12CrMoV 钢相比,具有更高的抗氧化性及热强性.此钢的蠕变极限与持久强度值很接近,并在持久拉伸的 情况下具有高的塑性;

钢的工艺性与焊接性良好,但焊前需预热至 300℃,焊后需除应力处理. 是高压、超高压、亚临界电站锅炉过热器、集箱和主蒸气导管广泛采用的钢种.580℃时仍具有高的热强性和抗氧 化性能,有较高的持久塑性.生产工艺较简单,焊接性能良好,但对正火冷却速度较敏感.580℃长期使用会产生 珠光体球化. Sunny Steel Enterprise Ltd. Collect Steel pipe and fitting Resources Http://www.sunnysteel.com E-mail: [email protected] Page:2 of 12Cr1MoV alloy steel pipe.docx Application High-pressure, high pressure, subcritical power station boiler superheater header and main steam conduit widely used kinds of steel.

580 ℃ still has a high thermal strength and anti-oxidant properties, have higher durable plastic. The production process is relatively simple, and good weldability, but normalizing cooling rate sensitive.

580 ℃ long-term use will produce pearlite spheroidization. Chemical Compositions (%) of 12Cr1MoV Elements Data Carbon 0.08-0.15 Silicon 0.17-0.37 Manganese 0.40-0.70 Phosphorus(max) ≤0.030 Sulfur(max) ≤0.030 Chromium 0.90-1.20 Molybdenum 0.25-0.35 Cuprum(max) ≤0.20 Nickel(max) ≤0.30 Sunny Steel Enterprise Ltd. Collect Steel pipe and fitting Resources Http://www.sunnysteel.com E-mail: [email protected] Page:3 of 12Cr1MoV alloy steel pipe.docx Mechanical Properties of 12Cr1MoV Yield Strength (Mpa) 450-600 Tensile Strength (Mpa)

280 Elongation (%)

20 The W.T. tolerance of 12Cr1MoV W.T.(S) Tolerance of W.T.

20 D