H14 is the most frequently specified temper among semi-hard aluminum sheet products. When selecting materials, procurement and process engineers often struggle to distinguish between H14 and H24 regarding performance and application limits; incorrect temper selection can ultimately lead to yield fluctuations during mass production or unnecessary costs. As an aluminum sheet manufacturer serving global industrial clients, we draw upon industry standards and our own production experience to break down the processing characteristics, performance parameters, and suitable applications of H14 aluminum sheet.
By standard definition, H14 is a semi-hard product achieved through pure cold-rolling work hardening, corresponding to a “4/8 hard” temper level. According to ASTM B209 specifications, the production process involves cold-rolling the material to the target thickness followed immediately by coiling and shipping; it skips the subsequent low-temperature stabilizing anneal, achieving semi-hard strength through approximately 50% cold deformation. Compared to the H24 temper of the same alloy, the production process omits one annealing step, resulting in processing costs that are 8%–10% lower and a more competitive overall delivery price.
A comparison of core performance parameters shows that H14 tempers across different alloys strictly adhere to standard requirements:
1060 H14 pure aluminum sheet has a tensile strength of 110–130 MPa, a yield strength (offset) of ≥85 MPa, elongation at break of ≥6%, and a Brinell hardness of approximately 35–45 HB;
3003-H14 rust-proof aluminum sheet has a tensile strength of 140–180 MPa, a yield strength (offset) of ≥115 MPa, elongation at break of ≥8%, and a Brinell hardness of approximately 45–55 HB;
5052-H14 medium-strength rust-proof aluminum sheet has a tensile strength of 220–270 MPa, a yield strength (offset) of ≥180 MPa, elongation at break of ≥6%, and a Brinell hardness of approximately 70–80 HB.
Regarding dimensional precision, the tolerance for standard-thickness sheets (0.5–3.0 mm) is controlled within ±0.04 mm, with flatness ≤1I and surfaces free of visible roll marks or scratches, allowing for direct integration into automated blanking and bending production lines.
The core advantage of H14 aluminum sheet lies in its cost-effectiveness for general processing applications. It offers approximately 40% higher strength than the O-temper (soft) aluminum sheet of the same alloy; after a single-pass 90° bend, the finished part exhibits superior resistance to collapse, avoiding issues like deformation after bending or denting during transport. Meanwhile, its plasticity is sufficient for single-pass bending, shallow blanking, and simple stamping; it exhibits about 20% less springback than the H18 (hard) temper, resulting in a lower risk of cracking during bending. Our customer service experience shows that for standard sheet metal components—such as ventilation ducts, aluminum ceiling panels, and general electrical enclosures—H14 aluminium sheet fully meets forming and structural requirements. Compared to H24 aluminum sheet of the same specifications, the procurement cost is $60–80 lower per ton, allowing customers with annual consumption exceeding 100 tons to save tens of thousands of dollars in material costs.
When selecting materials, it is also important to consider specific applications: since H14 aluminium sheet does not undergo stabilizing annealing, its internal residual stress is slightly higher than that of the H24 temper; consequently, H24 is better suited for welded structural components and precision sheet metal parts requiring multi-pass continuous bending, while O-temper (soft) sheet is the preferred choice for deep-drawing applications.
As a professional aluminum sheet manufacturer, Haomei Aluminum offer H14 aluminum sheet across all mainstream alloy series (1xxx, 3xxx, and 5xxx) in thicknesses ranging from 0.2 mm to 6.0 mm. We maintain ready stock and provide comprehensive material test reports with every batch, offering precise selection advice based on the customer’s processing methods to help balance finished product quality with procurement costs.