一、介绍
钢板是高强度管线钢，钢板管线钢种类及用途：管线钢是指用于输送石油、天然气等的大口经焊接钢管用热轧卷板或宽厚板。
二、与X70的区别
WPHY 70相当于国内的的L485，也是X70。只是采用的标准不同而已,屈服强度值是一样的。
该钢强度相当于X70,国标的L485,但不能等同，标准、使用方式以及交货状态均是不一样的。
三、执行标准
执行ASTM A860/A860M标准
Si Mn P S Ni Cr Mo Cu Nb V Ti Al
≤0.2 0.15~0.4 1~1.45 ≤0.03 ≤0.010 ≤0.5 ≤0.3 ≤0.25 ≤0.35 ≤0.04 ≤0.1 ≤0.05
五、力学性能
品种 形状 交货状态 详情
其他 热处理 Rp0.2(MPa) ≤485 说明
Rm(MPa) 550～725 说明
A(%) ≥20 说明 棒拉；A（板拉）≥28%
冲击温度() -46 说明
Ak(J) 34～40 说明
HB ≤235 说明
HRC ≤22 说明
六、X70化学成分
C Si Mn P S
≤0.08 ≤0.35 1~1.8 ≤0.02 ≤0.005
七、X70力学性能
品种 形状 交货状态 规格 详情
X70(高性能)-板,带(2.5~20) 板,带 热轧 2.5~20 Rt0.5(MPa) ≥485 说明
Rm(MPa) ≥570 说明
冲击温度() -20 说明
Akv(J) ≥190 说明 30°方向
弯曲直径 2a 说明
弯曲角度() 180 说明
I. to
steel plate is high type and use of steel plate steel: steel is used for oil, gas and other large steel pipe with hot coil plate or wide thick plate.
Ii. and X70
WPHY 70 is to L485 in which is also X70.The yield is the same, but the is .
The of this steel is to X70 and L485, but it be the same. The use mode and state are all .
with ASTM A860/A860M
Si Mn P S Ni Cr Mo Cu Nb V Ti Al
were 0.15 ~ 0.4 1 ~ 0.2 1.45 0.03 0.010 0.5 0.3 or less or less or less or less were 0.25, 0.35, 0.04, 0.1, 0.05 or less or less or less or less
V. of
shape
Rp0.2(MPa) ≤485 for other heat
Rm(MPa) 550 ~ 725
A(%) ≥20 bar pull;A (plate pull) ≥28%
of () -46
Ak(J) 34 ~ 40
HB 235 or less
HRC 22 or less
Vi. of X70
C Si Mn P S
≤0.08 ≤0.35 1~1.8 ≤0.02 ≤0.005
Vii. of X70
shape
X70(high )- with (2.5~20) with hot 2.5~20 Rt0.5(MPa) ≥485
Rm (MPa) 570 or more
() -20
Akv(J) ≥190 the of 30°
of 2a
Angle () 180