Improved formability provides easier fabrication and saves “redos”
The excellent formability of the four BethStar grades is associated with low sulfur (0.010 max) and the relative absence of stringer manganese sulfide inclusions. The suggested minimum inside bend radii for forming BethStar are shown on page 2.

Improved weldability reduces need for preheat and saves money
BethStar 50, 60, 70 and 80 are readily weldable using conventional arc welding processes. Specified base metal strength and toughness can be maintained into the weld zone, provided proper weld consumables and normal levels of heat input are used.

Description

*More restrictive toughness requirements are available on inquiry.

Availability

Maximum lengths depending on thickness and width range from 1,440 in. to 420 in.
**Thickness 3/16 to <1/4 in. available on inquiry.

Bethlehem's BethStar family of low-carbon, low-sulfur, high-strength steel plate offers improved toughness, weldability and formability when compared to competitive grades such as ASTM A572.

Four grades — BethStar 50, 60, 70 and 80 — enable design engineers to take advantage of the increased strength levels and fabricating advantages these plate grades offer. BethStar plates combine outstanding toughness, ease of fabrication and attractive strength/ cost relationships, all of which can translate into real savings for the end user.

The BethStar plate grades meet the requirements of ASTM A656, Type 7 (modified to 0.010 maximum sulfur).

These grades have low-carbon contents, low-carbon equivalents, and exhibit excellent resistance to hydrogen-assisted cracking. Normally no preheat will be necessary for temperatures as low as 0�F, provided low-hydrogen conditions can be maintained. When base metal temperature is below 32�F, the plate should be preheated to remove any moisture.

Fatigue properties
Fracture and fatigue are best controlled by proper methods of design, fabrication and inspection. The BethStar grades exhibit fatigue properties typical of HSLA grades of similar strength levels.

Minimum Inside Radius For Transverse Bends (T=thickness)

Figures 1 and 2 are examples of excellent formability and weldability of BethStar plate.

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