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RQ65(12CrMoNi)舞阳钢板正火+回火交货,钢板成分和性能保证完美

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RQ65(12CrMoNi)舞阳钢板正火+回火交货,钢板成分和性能保证完美

RQ65()钢板技术标准及性能分析1、本技术条件适用于厚RQ65()的钢板。2、钢板的尺寸、外形、重量及允许偏差除应符合标准之规定外,钢板的厚度偏差执行如下规定:厚度≤40mm钢板,负偏差为0.5mm,厚度≥40mm钢板,负偏差为1.0mm,钢板的公差带执行的规定。3、技术要求3.1 化学成分钢板的化学成分(熔炼分析)应符合表1的规定。表1wt%.09~0.150.17~0.400.90~1.300.40~0.700.20~0.300.04~0.120.70~1.000.02~0.06≤0.030≤0.030注:成品分析逐炉进行分析检验,其结果应符合GB222的规定。3.2 交货状态:钢板以正火+回火状态交货3.3 力学及工艺性能3.3.1 钢板的室温和低温的力学及工艺性能应符合表2的规定。表2厚度mm拉力试验冲击试验J180冷弯σs MPaσb MPaδ5 %-10-≥460≥635≥16≥68≥28d=≥415≥620≥16≥68≥28d=≥385≥620≥16≥68≥28d=3a注:表2中的冲击功为三个试样的算术平均值,允许其中一个试样的单值低于表2的规定值,但不得低于规定值的70%。厚度小于12mm的钢板,不做冲击试验。3.3.2 钢板的高温性能应符合表3的规定,试验温度应在合同中注明。表3钢板厚度mm高温屈服强度σ0.2   

注:厚度≤14mm的钢板,不做高温拉伸试验。

and of RQ65() steel plate

1. The are to thick RQ65() steel .

2. Size, and of steel plate in to the of the of steel plate shall be as : ≤40mm steel 0.5mm, ≥40mm steel 1.0mm, zone of steel plate shall with the of .

3.

3.1

The of the steel plate ( ) shall with the in Table 1.

Table 1 wt %

C Si Mn Cr Mo V Ni Nb P S

0.09 ~ 0.15 0.17 ~ 0.40 0.90 ~ 1.30 0.40 ~ 0.70 0.20 ~ 0.30 0.04 ~ 0.12 0.70 ~ 1.00 0.02 ~ 0.06 ≤0.030 ≤0.030

Note: The shall be and by and the shall to the of GB222.

3.2 : the steel plate shall be in the + state

3.3 and

3.3.1 The and of steel at room and low shall with the of Table 2.

Table 2.

mm test test J 180 cold

S MPa B MPa 5%

8-25 ≥460 ≥635 ≥16 ≥68 ≥28 D = 3A

26-80 ≥415 ≥620 ≥16 ≥68 ≥28 D = 3A

≥385 ≥620 ≥16 ≥68 ≥28 D = 3A

Note: The work in Table 2 is the mean value of the three and a value of one of the is to be less than the value in Table 2, but not less than 70% of the value.

No test shall be for steel with less than 12mm.

3.3.2 The of the steel plate shall with the in Table 3, and the test shall be in the .

Table 3

Steel plate mm high yield 0.2mpa

350 400 450 500

8-25 365 350 345 315

26-80 345 330 330 300

300 290 290 265

Note: Steel with ≤14mm shall not be to high test.

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