Tension Specimen Fractures

		A36 steel fracture images 2024-T4 aluminum fracture images

 

Test Slide Shows

• A36 HR steel Φ 3/16"
• A36 HR steel Φ 1/4"
• A36 HR steel Φ 5/16"
• A36 HR steel Φ 5/8"
• 1035 HR steel Φ 5/8"
• 1045 HR steel Φ 5/8"
• 2024-T4 aluminum Φ 3/16"
• 2024-T4 aluminum Φ 1/4"
• 2024-T4 aluminum Φ 5/16"
• 2024-T4 aluminum Φ 5/8"
• 2024-T4 aluminum 1/4"x1"

 

Fracture Descriptions

Category		Descriptors
form	symmetrical	cup-cone flat irregular or ragged
	asymmetrical	partial cup-cone flat irregular or ragged	asymmetrical factures caused by non-axial loading, non-homogeneity of the material, or a defect or flaw
texture		silky fine grain coarse grain or granular fibrous or splintery crystalline glassy dull
color
From The Testing and Inspection of Engineering Materials, 3rd Ed., H.E. Davis, G.E. Troxell, and C.T. Wiskocil, McGraw-Hill, 1964, pp. 129-31.

Tensile Fracture Description Examples

Material	Description
mild steel	cup-cone, silky
wrought iron	ragged, fibrous
cast iron	gray, flat, granular
cold-worked or heat-treated materials	"star fracture"

From The Testing and Inspection of Engineering Materials, 3rd Ed., H.E. Davis, G.E. Troxell, and C.T. Wiskocil, McGraw-Hill, 1964, pp. 129-31.