6061 T6/T651 Aluminum Plate | 30-350mm Thickness with Ready Stock

Chalco specializes in supplying 6061 aluminum alloy sheets (6–350mm and above), focusing on applications requiring high strength and extra thickness. For thicker sheets, starting from 30mm , we can reliably supply products in the 30–350mm range.

In the T6 condition, it is available in thicknesses up to 350mm, offering excellent hardenability to meet the requirements of heavy-duty structures and high-performance applications. Click to check [stock]
In the T651 condition, thicknesses up to 260mm can be supplied. Stress relief through stretching ensures excellent dimensional stability of thick plates during CNC machining. Click to check [stock]

Leveraging its readily available inventory and rapid delivery capabilities, Chalco's 6061 thick plate is widely used in tooling fixtures, precision jigs, mold base plates, aerospace structural components, and ship parts.

Overview of Chalco 6061, T6, and T651 aluminum sheet thickness range

Chalco can supply 6061 T6 / T651 aluminum alloy plates, with thicknesses ranging from 30–350mm, as detailed below:

Thickness range (mm)	Thickness range (inches)	Width (mm)	Length (mm)	Remark
30–50 mm	1.18''–1.97''	1000–2500	2000–6000	We keep stock on hand and can cut to size.
50–150 mm	1.97''–5.90''	1000–2500	2000–6000	Mainly T651, with large inventory.
150–260 mm	5.90''–10.24''	1000–2500	2000–6000	T651, Customized + Some Stock
260–350 mm	10.24''–13.78''	1000–2500	2000–6000	T6 is available up to 350mm or larger.

Product Advantages of 6061 T6/T651 Aluminum Plates

By choosing Chalco 6061 aluminum alloy thick plates (≥30mm), customers not only obtain high-quality materials but also enjoy a stable supply and convenient procurement. Our advantages are mainly reflected in the following aspects:

Stress-Relieved Stability:

6061 T651 thick plates are stretched to eliminate residual stress, making them less prone to deformation during CNC deep cavity machining, ensuring dimensional accuracy and machining efficiency.

Large-size capacity:

Single plates up to 350mm and above can be supplied (for 400mm thickness, the hardening center performance needs to be confirmed according to specific requirements, please consult our sales staff), comprehensively covering application needs from mold base plates, tooling fixtures to ultra-thick structural parts.

CNC-friendly

materials have excellent cutting properties, making them suitable for high-speed cutting and precision machining. They are widely used in mold manufacturing and mechanical parts processing.

Comply with

international standards such as ASTM B209, EN 485, and GB/T 3880, and we can provide EN 10204 3.1 material reports and ultrasonic testing (UT).

Ready Stock & Fast Delivery:

A variety of popular sizes (30mm / 50mm / 100mm / 150mm / 200mm) are readily available in stock and can be cut to size as needed. Global fast delivery is supported.

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Application scenarios for 6061 T6/T651 aluminum plates (30–350mm)

Chalco supplies 6061 T6/T651 aluminum alloy plates (≥30mm) in various thickness ranges to meet diverse needs, from tooling and fixtures to aerospace and marine structures.

30–50mm: Tooling Fixtures and Precision Jigs

Suitable for CNC reference plates and fixture bases. Both T6 and T651 available, with T651 providing higher stability in deep cavity machining.

Chalco offers precision cutting and milling, delivering ready-to-use tooling plates.

30–50mm: Tooling Fixtures and Precision Jigs

50–150mm: Mold Base Plates and Die Casting Molds

Used for injection, die casting, and stamping molds. T651 ensures stability and durability after large-size machining.

Chalco provides pre-processing and flaw detection to speed up mold setup.

150–260mm: Aerospace Tooling and Structural Parts

Ideal for aerospace tooling, ship decks, and large machinery. T651 plates feature excellent stress relief for high-precision applications.

Chalco offers 100% UT inspection, cutting, and five-sided milling to meet aerospace and marine standards.

150–260mm: Aerospace Tooling and Structural Parts

260–350mm (and above): Extra-Thick Plates

For large molds, heavy equipment, and special structures. T6 available up to 350mm or more (400mm subject to performance confirmation).

Chalco supports ultra-thick plate customization, deep heat treatment, and large-size pre-processing.

Chalco can help you with ultra-thick plate customization, deep heat treatment, and large-size pre-processing, so you don't have to worry about special requirements.

To learn more about our solutions for thick plates in different alloys and thickness ranges, please visit our aluminum alloy thick plate product overview or contact us directly for a customized quote.

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6061 T6/T651 Aluminum Plate Technical Specifications

To ensure customers can accurately select the right model, Chalco provides 6061 T6/T651 aluminum alloy thick plates (≥30mm) that conform to international standards such as ASTM, EN, and GB/T. Key parameters are as follows:

Size range (custom cuts available)
Thickness (mm)	Width (mm)	Length (mm)	Remark
30–350	1000–2500	2000–6000	Custom cutting to lengths is available upon request, with maximum thicknesses up to 350 mm for T6 and 260 mm for T651.

Chemical composition (typical values, wt%)
Si	Fe	Cu	Mn
0.4–0.8	≤0.7	0.15–0.4	≤0.15

Mechanical properties (typical values)
state	Tensile strength (MPa)	Yield strength (MPa)	Elongation (%)
T6	≥ 290	≥ 240	≥ 8
T651	≥ 310	≥ 276	≥ 10

All thick plates are available with EN 10204 3.1 material certificates and ultrasonic testing reports (UT per ASTM B594), meeting the quality requirements of the aerospace, marine, and mold industries.

For special dimensions or performance parameters, please contact our technical team for customized solutions.

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Chalco 6061 T6 T651 aluminum plate production and processing capabilities

Chalco not only supplies thick aluminum alloy plates, but also provides one-stop processing services to help you reduce outsourcing and speed up project delivery.

Precision cutting: sawing, waterjet cutting, CNC blanking, with dimensions controllable to ±0.1 mm.

Heat treatment capability: full range of T tempers (T6, T651, T652), stress relief, and improved dimensional stability.

Surface finishing: milling, planing, and large five-sided machining to ensure flatness and allowance for subsequent machining.

Ultrasonic testing: compliant with ASTM B594 / AMS-STD-2154 standards—ensuring aerospace and marine-grade quality.

Customized machining: drilling, grooving, and pre-processing of fixture base plates shorten the cycle time for customers' subsequent processes.

Large-size processing capability: width up to 3500 mm and length up to 38000 mm, meeting the needs of large molds and heavy-duty structures.

Documentation and Certification: We provide EN 10204 3.1 material reports, which can be accompanied by third-party SGS/TÜV/BV testing, ensuring complete traceability.

Choosing Chalco means buying more than just aluminum sheets; it means getting a ready-to-use solution – saving you time, reducing costs, and meeting stringent industry standards.

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Chalco 6061 T6 aluminum sheet in stock

Popular sizes available for immediate shipment.

30 / 40 / 50 / 100 / 150 mm
Sizes of the entire series are available and updated in real time.

Thickness T/in	Dimensions W × L (in)	weight Lbs	Weight (kg)	Thickness T/mm	Dimensions W×L (mm)
1.181	59.055×118.110	803.585	364.500	30	1500×3000
1.260	59.055×118.110	857.157	388.800	32	1500×3000
1.378	59.055×118.110	937.516	425.250	35	1500×3000
1.575	59.055×118.110	1071.447	486.000	40	1500×3000
1.772	59.055×118.110	1205.377	546.750	45	1500×3000
1.969	59.055×118.110	1339.308	607.500	50	1500×3000
2.165	59.055×118.110	1473.239	668.250	55	1500×3000
2.362	59.055×118.110	1607.170	729.000	60	1500×3000
2.559	59.055×118.110	1741.101	789.750	65	1500×3000
2.756	59.055×118.110	1875.032	850.500	70	1500×3000
2.953	59.055×118.110	2008.962	911.250	75	1500×3000
3.150	59.055×118.110	2142.893	972.000	80	1500×3000
3.346	59.055×118.110	2276.824	1032.750	85	1500×3000
3.543	59.055×118.110	2410.755	1093.500	90	1500×3000
3.740	59.055×118.110	2544.686	1154.250	95	1500×3000
3.937	59.055×118.110	2678.616	1215.000	100	1500×3000
4.134	59.055×118.110	2812.547	1275.750	105	1500×3000
4.331	59.055×118.110	2946.478	1336.500	110	1500×3000
4.528	59.055×118.110	3080.409	1397.250	115	1500×3000
4.724	59.055×118.110	3214.340	1458.000	120	1500×3000
4.921	59.055×118.110	3348.271	1518.750	125	1500×3000
5.118	59.055×118.110	3482.201	1579.500	130	1500×3000
5.315	59.055×118.110	3616.132	1640.250	135	1500×3000
5.512	59.055×118.110	3750.063	1701.000	140	1500×3000
5.709	59.055×118.110	3883.994	1761.750	145	1500×3000
5.906	59.055×118.110	4017.925	1822.500	150	1500×3000
6.102	59.055×118.110	4151.856	1883.250	155	1500×3000
6.299	59.055×118.110	4285.786	1944.000	160	1500×3000
6.496	59.055×118.110	4419.717	2004.750	165	1500×3000
6.693	59.055×118.110	4553.648	2065.500	170	1500×3000
6.890	59.055×118.110	4687.579	2126.250	175	1500×3000
7.087	59.055×118.110	4821.510	2187.000	180	1500×3000
7.480	59.055×118.110	5089.371	2308.500	190	1500×3000
7.677	59.055×118.110	5223.302	2369.250	195	1500×3000
7.874	59.055×118.110	5357.233	2430.000	200	1500×3000
8.268	59.055×118.110	5625.095	2551.500	210	1500×3000
8.661	59.055×118.110	5892.956	2673.000	220	1500×3000
9.055	59.055×118.110	6160.818	2794.500	230	1500×3000
9.449	59.055×118.110	6428.680	2916.000	240	1500×3000
9.843	59.055×118.110	6696.541	3037.500	250	1500×3000
10.236	59.055×118.110	6964.403	3159.000	260	1500×3000
10.630	59.055×118.110	7232.265	3280.500	270	1500×3000
11.024	59.055×118.110	7500.126	3402.000	280	1500×3000
11.417	59.055×118.110	7767.988	3523.500	290	1500×3000
11.811	59.055×118.110	8035.849	3645.000	300	1500×3000
12.205	59.055×118.110	8303.711	3766.500	310	1500×3000
12.598	59.055×118.110	8571.573	3888.000	320	1500×3000
12.992	59.055×118.110	8839.434	4009.500	330	1500×3000
13.386	59.055×118.110	9107.296	4131.000	340	1500×3000
13.780	59.055×118.110	9375.158	4252.500	350	1500×3000
14.173	59.055×118.110	9643.019	4374.000	360	1500×3000
14.567	59.055×118.110	9910.881	4495.500	370	1500×3000
14.961	59.055×118.110	10178.743	4617.000	380	1500×3000
15.354	59.055×118.110	10446.604	4738.500	390	1500×3000
15.748	59.055×118.110	10714.466	4860.000	400	1500×3000

Chalco 6061 T651 aluminum sheet in stock

Popular sizes available for immediate shipment.

30 / 50 / 100 / 150 mm
Sizes of the entire series are available and updated in real time.

Thickness T/in	Dimensions W × L (in)	weight Lbs	Weight (kg)	Thickness T/mm	Dimensions W×L (mm)
1.181	59.055×118.110	803.585	364.500	30	1500×3000
1.260	59.055×118.110	857.157	388.800	32	1500×3000
1.378	59.055×118.110	937.516	425.250	35	1500×3000
1.575	59.055×118.110	1071.447	486.000	40	1500×3000
1.772	59.055×118.110	1205.377	546.750	45	1500×3000
1.969	59.055×118.110	1339.308	607.500	50	1500×3000
2.165	59.055×118.110	1473.239	668.250	55	1500×3000
2.362	59.055×118.110	1607.170	729.000	60	1500×3000
2.559	59.055×118.110	1741.101	789.750	65	1500×3000
2.756	59.055×118.110	1875.032	850.500	70	1500×3000
2.953	59.055×118.110	2008.962	911.250	75	1500×3000
3.150	59.055×118.110	2142.893	972.000	80	1500×3000
3.346	59.055×118.110	2276.824	1032.750	85	1500×3000
3.543	59.055×118.110	2410.755	1093.500	90	1500×3000
3.740	59.055×118.110	2544.686	1154.250	95	1500×3000
3.937	59.055×118.110	2678.616	1215.000	100	1500×3000
4.134	59.055×118.110	2812.547	1275.750	105	1500×3000
4.331	59.055×118.110	2946.478	1336.500	110	1500×3000
4.528	59.055×118.110	3080.409	1397.250	115	1500×3000
4.724	59.055×118.110	3214.340	1458.000	120	1500×3000
4.921	59.055×118.110	3348.271	1518.750	125	1500×3000
5.118	59.055×118.110	3482.201	1579.500	130	1500×3000
5.315	59.055×118.110	3616.132	1640.250	135	1500×3000
5.512	59.055×118.110	3750.063	1701.000	140	1500×3000
5.709	59.055×118.110	3883.994	1761.750	145	1500×3000
5.906	59.055×118.110	4017.925	1822.500	150	1500×3000
6.102	59.055×118.110	4151.856	1883.250	155	1500×3000
6.299	59.055×118.110	4285.786	1944.000	160	1500×3000
6.496	59.055×118.110	4419.717	2004.750	165	1500×3000
6.693	59.055×118.110	4553.648	2065.500	170	1500×3000
6.890	59.055×118.110	4687.579	2126.250	175	1500×3000
7.087	59.055×118.110	4821.510	2187.000	180	1500×3000
7.480	59.055×118.110	5089.371	2308.500	190	1500×3000
7.677	59.055×118.110	5223.302	2369.250	195	1500×3000
7.874	59.055×118.110	5357.233	2430.000	200	1500×3000
8.268	59.055×118.110	5625.095	2551.500	210	1500×3000
8.661	59.055×118.110	5892.956	2673.000	220	1500×3000
9.055	59.055×118.110	6160.818	2794.500	230	1500×3000
9.449	59.055×118.110	6428.680	2916.000	240	1500×3000
9.843	59.055×118.110	6696.541	3037.500	250	1500×3000
10.236	59.055×118.110	6964.403	3159.000	260	1500×3000

Chalco can provide you the most comprehensive inventory of aluminum products and can also supply you customized products. Precise quotation will be provided within 24 hours.

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