TruSTRENGTH 80 Flat Bar

Product and Application

TruSTRENGTH 80 structural steel flats with 80 ksi yield strength. This product is intended for use in the agricultural, forestry and trailer chassis industries, and other structural applications requiring a combination of high strength, weldability and toughness.

Available in thickness 1/4” - 2”, widths 3” - 12” and lengths up to 56’.
 

Mechanical Properties

Yield Strength (0.2%)	80 ksi (552 MPa)
Tensile Strength	95 ksi (655 MPa)
Elongation in 2”	14%
Charpy V-Notch @ -20° F	15 ft-lbs (20.3 J) longitudinal
Methods	Mechanical tests in accordance with ASTM A370, latest revision
Frequency	Per heat, per size and per load

* Minimum values unless otherwise noted.
 

Dimensional Tolerances

Cross-Sectional Dimensions	Per ASTM A6, Table 26 (flats)
Length	Per ASTM A6, Table 30
Width	Per ASTM A6
Straightness	1/4" in 5' maxiumum deviation

 

Chemical Composition

	C	Mn	P	S	Si	V
Min	0.10	0.80	-	-	0.15	0.08
Max	0.24	1.65	0.040	0.040	0.35	0.18
CE* (typical):			0.52		*CEV = C + Mn/6 + (Cr+Mo+V)/5 + (Ni+Cu)/15

 

Recommended Welding Practices

TruSTRENGTH 80 flat bar can be welded by conventional processes such as SMAW, SAW and GMAW, provided the weld procedures used are suitable for this grade and design of the welded structure. Proper weld procedures should include the following:

1. Low Hydrogen conditions must be used.
2. Preheating to 200-500 °F is required for heavy section (>0.750”), and is recommended for thinner sections to eliminate moisture.
3. Slow cooling rates should be avoided to prevent low toughness in the heat-affected zone (HAZ).

*These statements are general guidelines. CMC Impact Metals is not responsible for the results of any welding work performed.
 

Standard Delivery Conditions

Test Reports

Supplied with shipment for each production lot in the shipment. Reports include description of product and heat treatment processing, and heat number, heat treatment lot and chemical analysis of all elements listed from ladle analysis.

QMS #: TD-CUS-432 | Last Revision: 10/01/2023