6061 T6 Metric Aluminum Bar, 10mm Thick x 30mm Wide x 3 Ft Length Thickness Tolerance +/-.203mm”Width tolerance for 5 mm to 25 mm wide bars is ±0.254 mm. Width tolerance for 30 mm to 50 mm wide bars is ±0.356 mm. Flatness tolerance is 0.006″ per inch of width. Length tolerance is ±1/4″. 6061 Alloy has better corrosion resistance and weldability than Alloys 2024 and 7075, but it’s not as strong. It is nonmagnetic, heat treatable, and resists stress cracking. Temperature range is -320° to 300° F. Yield Strength: 35,000 psi Hardness: 95 Brinell ASTM B221 Aluminum Bars are not film or protective masked and may have scuffs or scratches. RETURN’S Where we are at fault. Item not as described, damaged or an obvious error on our part is guaranteed a full refund, inclusive of any & all shippingper our stated directions. RETURN DIRECTION’s; All returns MUST be in the original condition received. All returns MUST be shipped in the same manner as we shipped originally. ANY ADDITIONAL COST UP & BEYOND THE ORIGINAL COST, INCURRED IN RETURNING YOUR ITEM IS NOT REFUNDABLE. (if you choose to return an item at a higher rate than we originally shipped to you? This portion is NOT refundable) Refunds due because of a no error on our part are completed asan item refund only. Shipping is excluded. PLEASE feel free to contact us with any questions or concerns, as we strive for 100% satisfaction & happy customers. Items with a free shipping 20% restocking fee will apply.