Introduction to Bar Grating:
Specifications
| Product | Material Specification |
Federal Specification |
Military Specification |
Finish Specification |
|---|---|---|---|---|
| Light Duty Welded, Light Duty Press-Locked, Light Duty Swaged |
--ASTM A-569 (1/8”, 3/16”, 1/4”) --ASTM A-36 (1/4”) by inquiry |
ANSI/NAAMM MBG 531 |
MIL-G-18014 (Ships) |
--Bare Steel --Galvanized per ASTM A-123 or A-385 --One shop coat mfg’s standard paint. Note: This is to protect grating during transit only, not intended as a permanent finish. |
| Heavy Duty Welded Steel |
--ASTM A-36 (1/4”, 5/16”, 3/8”,1/2”) --Other (by inquiry) |
AASHTO (American Association of State Highway and Transportation Officials) Standard Specifications For Highway Bridges ANSI/NAAMM MBG 532 |
--Bare Steel --Galvanized per ASTM A-123 or A-385 --One shop coat mfg’s standard paint. Note: This is to protect grating during transit only, not intended as a permanent finish. |
|
| Aluminum Press-Locked Aluminum Swaged Aluminum Flush Top Aluminum I-Bar |
--Alloy 6063-T6 or Alloy 6061-T6 (special order) for bearing bars per ASTM B-221 --Alloy 6063 for cross bars per ASTM B-221 |
ANSI/NAAMM MBG 531 |
MIL-G-18014 (Ships) |
--Mill Finish --Other (by inquiry) |
| Stainless Steel Welded Stainless Steel Press-Locked Stainless Steel Swaged |
--Type 304 per ASTM A-167 (1/8” and 3/16”) --Other (by inquiry) |
ANSI/NAAMM MBG 531 |
MIL-G-18014 (Ships) |
--Welded: ‘As-welded’ --Press-Locked: Mill Finish --Other (by inquiry) |
