The difference between A633Gr.D and A633Gr.E steel properties

A633Gr.D and A633Gr.E are American standard normalized high-strength low-alloy steel plates for welding, riveting, and bolting structures.

Chemical composition of A633Gr.D steel plate:

Grade	C	Si	Mn	P	S	Ni	Cr	Mo	Cu
A633 Gr.D	≤0.2	0.15-0.5	1-1.6	≤0.03	≤0.03	≤0.25	≤0.25	≤0.08	≤0.35

A633 Gr.D steel plate mechanical properties:

Delivery Status	Thickness	Mechanical properties
Normalizing	>40-65mm	Re(MPa)	≥345
		Rm(MPa)	485-620
		A200(%)	≥18	A50≥23%
	>65-100mm	Re(MPa)	≥315
		Rm(MPa)	450-590
		A200(%)	≥18	A50≥23%

Melting analysis of chemical composition of A633 Gr.E steel plate:

Grade	C	Si	Mn	P	S	Nb	V	Alt	N
A633 Gr.E	≤0.22	0.15-0.5	1.15-1.5	≤0.03	≤0.03	0.010-0.05	0.04-0.11	≥0.018	≤0.03

Composition remarks: Alt≥0.018 or vanadium-nitrogen ratio>4:1.

Mechanical properties of A633 Gr.E steel plate:

Delivery Status	Thickness	Mechanical properties
Normalizing	≤100mm	Re(MPa)	≥415
		Rm(MPa)	550-690
		A200(%)	≥18	A50≥23%
	>100-150mm	Re(MPa)	≥380
		Rm(MPa)	515-655
		A200(%)	≥18	A50≥23%

A633Gr.D and A633Gr.E steel plate technical standard and scope of application:
A633Gr.D and A633Gr.E steel implement ASTM A633/A633M standard. They are mainly used in bridges, ships, vehicles, boilers, high-pressure vessels, oil and gas pipelines, large steel structures and other manufacturing fields.