TC128 PVQ Steel Plate

TC128 Grade B is a pressure vessel quality steel plate used in pressurized railroad tank cars. Certified under the Association of American Railroads’ Manual of Standards and Recommended Practices, TC128 Grade B is suitable for railcar tank applications.

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Features

  • Available in grade B.

  • Available in normalized and as-rolled conditions.

  • Low-temperature service may require normalized plate with Charpy V-notch impact properties.

  • Due to quickly shifting inventory for this PVQ steel grade, please inquire about availability.

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Product Details

Grade Thickness Width Length
TC128-B Inquire Inquire Inquire
Grade Yield Point (ksi) Tensile Strength (ksi) Min. 8" Elongation %
B 50 81-101 16
Carbon max 0.24%
Manganese max 1.00-1.65%
Phosphorus max 0.025%
Sulfur max 0.015%
Silicon, >3/4" thick 0.15-0.50% max
Silicon, ≤3/4" thick 0.15-0.40% max
Copper max 0.35%
Columbium max Per ASTM A20
Vanadium max 0.08%
Chromium max No Limit
Aluminum max 0.015-0.060%
Nitrogen max 0.010%
Nickel max No Limit
Boron max 0.00%
Molybdenum max No Limit
Titanium max 0.02%
Tin max 0.02%
CEq max 0.53%
Ti/N max ratio 4.0
Cu+Ni+Cr+Mo max 0.65%
Nb+V+Ti max 0.11%

Grade Comparison

Frequently Asked Questions

Learn more about TC128 Grade B steel plate.
TC128 Grade B steel plate is used for pressurized railroad tank cars and railcar tank applications. It is a high-strength carbon-manganese steel plate used in fusion-welded tank car tanks and is certified under Association of American Railroads requirements for tank cars.
AAR certification means TC128 Grade B steel plate meets requirements from the Association of American Railroads’ Manual of Standards and Recommended Practices for tank car applications. For railcar tank fabrication, this certification helps confirm that the plate meets the required material, testing and traceability standards for pressurized tank car use.
TC128 Grade B steel plate may be supplied in the as-rolled or normalized condition. When TC128 Grade B is designated for low-temperature service, it is typically provided in the normalized condition with specified low-temperature Charpy V-notch impact properties.
TC128 Grade B steel plate may require Charpy V-notch impact testing when designated for low-temperature service. Normalized TC128 Grade B can be supplied with specified low-temperature impact properties, and testing requirements should be confirmed based on the railcar tank specification and service conditions.