ASTM A234 WP5的化学成分和力学性能

ASTM A234 WP5的化学成分和力学性能

化学成分Chemical Compositions( max, % )

钢级GradeA	WP5 CL1
C	0.15
Mn	0.30-0.60
P	0.040
S	0.030
Si	0.50
Cr	4.0-6.0
Mo	0.44-0.65
Ni	...
Cu	...
V	...

A 当管配件为焊接结构时，上述级别号及标志号应添加字母“W”。When fittings are of welded construction, the grade and marking symbol shown above shall be supplemented by letter “W”.

拉伸性能 Tensile Requirements

钢级Grade	WP5 CL1
抗拉强度范围Tensile strength, range ksi [MPa]	60–85 [415–585]
最小屈服强度 Yield strength, min, ksi [MPa] (0.2 % offset or 0.5 % extension-under-load)	30 [205]

延伸率Elongation	WP5 CL1
	纵向Longitudinal	横向Transverse
标距为4D的标准圆形试样或小尺寸比例试样的最小值Standard round specimen, or small proportional specimen, min % in 4 D	22	14
5/16英寸（7.94mm）及其以上壁厚的矩形试样，和所有在全截面下试验的小尺寸试样，标距为2inch（50mm） Rectangular specimen for wall thickness 5⁄16 in. [7.94 mm] and over,and for all small sizes tested in full section; min % in 2 in. [50 mm]	30	20
5/16英寸（7.94mm）以下壁厚的矩形试样,标距为2inch（50mm）（试样宽1/2inch，12.7mm）Rectangular specimen for wall thickness less than 5⁄16 in. [7.94 mm];min % in 2 in. [50 mm] (1⁄2-in. [12.7-mm] wide specimen)	A	A

A 允许从上列伸长率值上，对于壁厚在7.94mm以下的，每减薄0.79mm，纵向伸长率递减1.5%及横向伸长率递减1.0%。下表给出不同壁厚的最小值。For each 1⁄32 in. [0.79 mm] decrease in wall thickness below 5⁄16 in. [7.94 mm], a deduction of 1.5 % for longitudinal and 1.0 % for transverse from the values shown above is permitted. The following table gives the minimum value for various wall thicknesses.

壁厚Wall Thickness		WP5 CL1
in.	[mm]	纵向Longitudinal	横向Transverse
5⁄16 (0.312)	7.94	30	20
9⁄32 (0.281)	7.14	28.5	19
1⁄4 (0.250)	6.35	27	18
7⁄32 (0.219)	5.56	25.5	…
3⁄16 (0.188)	4.76	24	…
5⁄32 (0.156)	3.97	22.5	…
1⁄8 (0.125)	3.17	21	…
3⁄32 (0.094)	2.38	19.5	…
1⁄16 (0.062)	1.59	18	…

硬度Hardness- 最高217HB