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NMFC 133740 - Mg Castings or Forgings | Class 70

Article ID
133740
NMFC 133740 for packaged Mg castings/forgings
Freight Group
MAGNESIUM METAL OR MAGNESIUM METAL ALLOYS
Magnesium metal and alloys, solid parts
Class Range
70 1 classification
Class 70 at 15+ lb/ft³ density
Hazardous
No
Non-hazardous under this packaged item

Classification Details

NMFC Description Class
133740.00 Castings or Forgings, NOI, see Note, item 133742, in packages, having a density of 15 pounds or greater per cubic foot, see Note, item 133743 70

Notes

Note 133742: NOTE-Applies only on articles manufactured solely by a casting or forging process.

How to Determine Your Class

To find the correct freight class for your shipment:

  1. Verify density at or above 15 lb/ft³ for each handling unit; compute weight ÷ cubic feet and print the result on the BOL to lock in Class 70.
  2. Package as crates or well-palletized cartons; block and brace, and use edge/corner guards to protect machined magnesium surfaces from impact and galvanic scuffs.
  3. Keep solid castings/forgings separate from chips, turnings, or powder, which classify differently and may introduce hazmat considerations.
  4. Reference NMFC Notes 133742 and 133743 on paperwork; label “NMFC 133740, Class 70, packaged” and include accurate piece counts per pallet.

Note: All classifications are subject to Item 170. Verify with official NMFC publications for the most current requirements.

Business Value

  • Class 70 for dense packaged magnesium yields competitive LTL rates compared with lighter-density freight.
  • Documented density reduces reclass and reweigh disputes, cutting chargebacks and avoiding delivery delays.
  • Proper crating and palletization lower claim risk on high-value aerospace and EV magnesium parts.
  • Non-hazardous status avoids hazmat fees and opens more carrier and service options.