15MnNiNbDR舞阳钢铁容器板热处理正火+回火，材质和性能都可以保证

一、低温压力容器用钢向高韧性、高强度方向发展,现行低温压力容器用钢标准中的钢种并不能完全适应市场需求。为了满足市场对高韧性(-50)、高强度(Rm≥530)低温压力容器用钢的需求,研制开发了钢，用于高韧性-50低温压力容器。二、是国内首创，可用于-50下的低温压力容器用板，填补了《低下的低温压力容器用于低合金钢板》中-40—70用钢的空白，特别是低温球形储罐和高参数低温圆筒形容器板。三、读15锰镍铌低容，Mn是化学元素锰Ni是化学元素镍Nb是化学元素铌D是低温R是压力容器板。四、执行标准：。五、交货状态：正火+回火；钢板冲击温度：-45°C六、特点：钢板具有良好的低温冲击韧性，优良的焊接性能和抗硫化氢应力腐蚀能力。七、表面质量7.1钢板的表面不允许存在裂纹、气泡、结疤、折叠和夹杂等缺陷，如有上述表面缺陷，允许清理，清理深度从钢板实际尺寸算起，不得超过钢板厚度公差之半，并应保证钢板的***小厚度，缺陷清理处应平滑无棱角，钢板不得有分层.7.2其他缺陷允许存在，深度从钢板实际尺寸算起，不得超过钢板厚度公差之半，并应保证缺陷处厚度不小于钢板允许的厚度。八、钢板的化学成分（熔炼分析%）钢板牌号iNbDR≤0.180.15-0.501.20-1.60≤0.020≤0.0100.30-0.700.01-0.04≤0.015≤0.45九、钢板力学性能:屈服强度8—16mm：   ≥370；16—36mm：  ≥360；36—60mm：  ≥350；抗拉强度：8—16mm：   ；16—36mm：  ；36—60mm：  ；冲击试验：-50冲击试验：≥60J弯曲试验180°  =  d=3a断后伸长率A/：20十、钢板表面质量10.1钢板的表面不允许存在裂纹、气泡、结疤、折叠和夹杂等缺陷，如有上述表面缺陷，允许清理，清理深度从钢板实际尺寸算起，不得超过钢板厚度公差之半，并应保证钢板的***小厚度，缺陷清理处应平滑无棱角，钢板不得有分层

10.2其他缺陷允许存在，深度从钢板实际尺寸算起，不得超过钢板厚度公差之半，并应保证缺陷处厚度不小于钢板允许的厚度

1. Steel for low is high and . The steel types in the steel for low fully meet the .In order to meet the for high (-50) and high (Rm≥530) steel for low steel was for high (-50) low .

is the first in which can be used for the plate of under -50, the blank of steel in "Low used for Steel Plate", the tank and plate with high .

Mn is the Mn is the Ni is the NiNb is the D is the low R is the plate.

Iv. : .

V. : + ; steel plate : -45°C

Vi. :

steel plate has good low and .

7.

7.1 the of the steel plate are not to exist and such as the if any, to clean up, clean up the depth from steel size, not be more than half of the steel plate and shall that the * * * small steel plate of be with no sharp clean place plate be .

7.2 Other shall be and the depth shall not half of the of the steel plate from the size of the steel and the of the shall not be less than the of the steel plate.

Viii. of steel Plate ( %)

Steel plate C Si Mn P S Ni Nb Al Cr

≤0.18 0.15-0.50 1.20-1.60 ≤0.020 ≤0.010 0.30-0.70 0.01-0.04 ≤0.015 ≤0.45

Ix. of steel plate:

yield

8-16 mm: p. 370;

16-36 mm: p. 360;

36-60 mm: p. 350;

:

8-16 mm: ;

16-36 mm: ;

36-60 mm: ;

test: -50 test: ≥60J

test 180° = D = 3A

at break A/ : 20

X. of steel plate

10.1 the of the steel plate are not to exist and such as the if any, to clean up, clean up the depth from steel size, not be more than half of the steel plate and shall that the * * * small steel plate of be with no sharp clean place plate be

10.2 Other are . The depth shall not half of the of the steel plate from the size of the steel and the of the shall not be less than the of the steel plate