ASTM A106 Introduction

ASTM A106 introduction:

1. ASTM A106 for the American standard material, including A, B, C a total of three grades

 

American standard	Similar Chinese	tensile strength
A	20#	330MPa
B	Q235	415MPa,
C	Q345	485MPa

 

 

1. Chemical analyze

	≤C	Mn	≤P	≤S	Si	≤Cr	≤Cu	Mo	Ni	V
A	0.25	0.27-0.93	0.035	0.035	0.1	0.4	0.4	0.15	0.4	0.08
B	0.30	0.29-1.06	0.035	0.035	0.1	0.4	0.4	0.15	0.4	0.08
C	0.35	0.29-1.06	0.035	0.035	0.1	0.4	0.4	0.15	0.4	0.08

 

Above grade is distinguished by C and Mn, then it come with different tensile strength.