Heat-Resisting Alloy Steel T-Section 55x55x5mm
Hot-rolled T-shaped section of heat-resisting alloy steel (<0.3% C, 4-10.5% Cr), max cross-section 55 mm, for furnace frameworks. HTS 7228.70.30.81 covers such hot-rolled alloy shapes not advanced, under 76 mm. Defined per U.S. note (g).
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If silicon-electrical steel angles
Special electrical alloy steels classify under heading 7222.
If tubular and for towers/bridges
Hollow structural sections for specific uses enter heading 7308.
If universal mill plate product
Universal mill products with specific width/thickness have prior statistical suffixes.
Not sure which classification is right?
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Import Tips & Compliance
• Certify low carbon and chromium range per note (g) to qualify as heat-resisting steel
• Document hot-rolled mill finish; any coating/varnishing is 'further worked' elsewhere
Related Products under HTS 7228.70.30.81
A36 Alloy Steel Angle Bar 50x50x5mm
Hot-rolled L-shaped angle bar made from A36 structural alloy steel with a maximum cross-sectional dimension of 50 mm, used in construction framing. It falls under HTS 7228.70.30.81 as hot-rolled angles, shapes, or sections of alloy steel, not drilled, punched, or further advanced, with max dimension under 76 mm. Meets chapter definitions for alloy steel structural products.
4140 Alloy Steel Channel Section 65x35x5mm
Hot-rolled U-shaped channel made from 4140 chromium-molybdenum alloy steel, max dimension 65 mm, for machinery framing. Classified under HTS 7228.70.30.81 as other hot-rolled shapes/sections of alloy steel, not advanced beyond rolling, under 76 mm cross-section. Conforms to tool steel alloy definitions in chapter notes.
High-Strength 355 MPa Steel L-Section 40x40x4mm
Hot-rolled angle L-section of high-strength alloy steel meeting minimum yield point 355 MPa for thickness ≥3 mm, used in automotive chassis. HTS 7228.70.30.81 applies to hot-rolled alloy steel shapes with max dimension <76 mm, not drilled/punched. Explicitly defined as high-strength steel per U.S. note (a).
Tool Steel H-Section 60x30x6mm
Hot-rolled H-beam section from tool steel alloy (>1.2% carbon, >10.5% chromium), max dimension 60 mm, for die-making jigs. Under HTS 7228.70.30.81 as other alloy steel shapes hot-rolled without advancement, <76 mm. Matches tool steel definition in U.S. note (e)(i).
Chipper Knife Alloy Steel Angle 45x45x4mm
Hot-rolled angle profile of chipper knife steel (0.48-0.55% C, 7.25-8.75% Cr, etc.), max dim 45 mm, for woodworking machinery bases. Fits HTS 7228.70.30.81 as other hot-rolled alloy steel angles/shapes <76 mm, not advanced. Per U.S. note (f).
4340 Alloy Steel Z-Section Purlin 70x40x5mm
Hot-rolled Z-shaped purlin from 4340 nickel-chromium-molybdenum steel, max dimension 70 mm, for roof framing. HTS 7228.70.30.81 for alloy steel shapes hot-rolled, not punched/drilled, <76 mm cross-section.