BethStar 50

BethStar 50 plate has 50 ksi minimum yield strength and is available through 21�2 in. thickness. Its outstanding toughness makes it an economical replacement for normalized grades in many applications. It may be ordered to conform to ASTM A656 or A808 specifications. BethStar 50 is ideal for fabrications where formability, weldability, strength and toughness are essential. Potential applications requiring excellent toughness include construction and mining equipment frame components, or large crane and offshore fabrications involving highly constrained weldments.The BethStar family includes a minimum of CVN toughness of 15 ft-lb longitudinal at -50�F. It may be ordered to even more restrictive specifications, including ASTM A808 at additional cost. The graphs below demonstrate the yield, tensile and CVN characteristics of BethStar 50 over a range of thicknesses. The superior toughness obtainable through additional chemistry and processing refinements is clearly seen in Figure 5.

Thick
(in.)

Avg. Yield
Strength (ksi)

Avg. Tensile
Strength (ksi)

Avg.
% Elong.

Longitudinal Charpy V
Energy (ft-lb@-50�F)

Normal

Superior

3/8

64.5

73.9

34.5 (2")

136 (3/4 size)

-

1

62.2

70.8

24.9 (8")

81

170

1 1/2

58.7

72.8

27.0 (8")

61

202

2

55.1

71.9

30.3 (2")

60

225

BethStar Steel Plate BethStar Characteristics BethStar 50 (page1) BethStar 50 (page 2)
BethStar 60 BethStar 70 BethStar 80 (page1) BethStar 80 (page 2)