Technical Data

Chemical Compositions- (For information purposes only)

 


Ladle Analysis, Percent - (Maximum or Ranges)
Specification/Grade C Mn P S Si V Cu Ni Cr Mo B Zr
ASTM A242 Type 1
(Mayari R)
(No equivalent)
AASHTO grade)		 0.12 0.50
to
1.00		 0.12 0.05 0.02
to
0.90		 - 0.50 1.00 0.40
to
1.00		 - - 0.10
ASTM A588
ASTM A709-50W
AASHTO M270-50W
(Mayari R50)		 0.20 0.75
to
1.35		 0.04 0.05 0.15
to
0.50		 0.01
to
0.10		 0.20
to
0.40		 0.50 0.40
to
0.70		 - - -
Mayari R60
(No equivalent
ASTM/AASHTO
grades)		 0.20 0.75
to
1.35		 0.04 0.05 0.15
to
0.50		 0.01
to
0.10		 0.20
to
0.40		 0.50 0.40
to
0.70		 - - -
ASTM A852
ASTM A709-70W
AASHTO M270-70W		 0.19 0.80
to
1.35		 0.035 0.04 0.20
to
0.65		 0.02
to
0.10		 0.20
to
0.40		 0.50 0.40
to
0.70		 - - -
ASTM A514 - Grade P
ASTM A709W-100W-Type P
AASHTO M270-100W-Type P		 0.12
to
0.21		 0.45
to
0.21		 0.035 0.035 0.20
to
0.35		 - 0.20
min.		 1.20
to
1.50		 0.85
to
1.20		 0.45
to
0.60		 .001
to
.005		 -

Mechanical Properties

Specification/Grade Group or
Thickness (in.)		 Yield Point
(ksi,min.)		 Tensile Strength
(tsi,min.)		 Minimum
Elongation
% in 8 in.		 Minimum
Elongation
% in 2 in.
ASTM A243 Type 1
(Mayari R)
(No equivalent
AASHTO grade)
- Shapes
 Group 1 and 2
3
4 and 5		 50
46
42		 70
67
63		 18
18
18		 21
21
21
- Plates To 3/4" incl.
Over 3/4" to 1-1/2" incl.
Over 1-1/2" to 4" incl.
Over 4"		 50
46
42
40		 70
76
63
60		 18
18
18
-		 21
21
21
20
ASTM A588
ASTM A709-50W
AASHTO M270-50W
(Mayari R50)
- Shapes		 All 50 70 18 21
- Plates To 4" incl.
Over 4" to 5" incl.
Over 5" to 8" incl.		 50
46
42		 70
67
63		 18
-
-		 21
21
21
Mayari R60
(No ezuivalent ASTM/
AASHTO grades)
- Shapes		 Group 1 60 80 16 19
- Plates To 4" incl. 60 80 16 19
ASTM A852
ASTM A709-70W
AASHTO M270-70W		 To 4' Incl. 70 90 - 19
ASTM A514
ASTM A709-100W
AASHTO M270-100W		 To 1-12" incl.
Over 1-12" to 4" incl.		 100
90		 110
100		 -
-		 18
16

Technical Data page 1

Weathering Steel Main Page

Design Considerations The Weathering Process Cleaning and Handling
Joining, Forming and Stiffening Technical Data Suggestions and Details
Protective Coatings Availability General Remarks

Burns Harbor Products

Home Financial About Divisions Steel Links Products Markets What's New

E-mail comments to: [email protected]
�1998, Bethlehem Steel Corporation