Titanium Sheet and Plate Buyer's Guide: Grades, Sizes, Tolerances, and Ordering Tips

If your bill of materials calls for titanium flat products, the first decision you face is deceptively simple: sheet or plate? The answer determines pricing, lead time, available grades, and even which mill standards apply. This guide gives procurement engineers and design teams the reference data they need to specify titanium sheet and plate correctly the first time.

Sheet vs. Plate — Where Is the Line?

Industry convention follows ASTM B265: titanium flat-rolled product up to 4.75 mm (0.187 in) thick is sheet; anything above that threshold through 150 mm is plate. The distinction matters because mills price, stock, and certify these products differently.

Sheet is typically supplied in coil or cut-to-length rectangles and is cold-rolled to final gauge. Plate is hot-rolled or forged, then surface-ground or pickled. Because plate undergoes less cold work, it retains more of the ingot's original grain structure — an important consideration for fracture-critical aerospace applications where through-thickness toughness is specified.

Common Grades at a Glance

ASTM Grade	UNS	Composition	Typical UTS (MPa)	Key Applications
Grade 1	R50250	CP Ti, low O	240	Chemical process linings, architectural cladding
Grade 2	R50400	CP Ti, standard	345	Heat exchangers, desalination, general industrial
Grade 5	R56400	Ti-6Al-4V	895	Aerospace structure, high-performance marine
Grade 7	R52400	Ti-0.15Pd	345	Wet chlorine service, PTA reactors
Grade 9	R56320	Ti-3Al-2.5V	620	Hydraulic tubing, thin-wall pressure vessels
Grade 12	R53400	Ti-0.3Mo-0.8Ni	483	Shell-and-tube heat exchangers, marine piping
Grade 23	R56407	Ti-6Al-4V ELI	860	Medical implants, cryogenic pressure vessels

Grade 2 accounts for roughly 60 percent of all titanium sheet consumption globally because it balances formability, weldability, and corrosion resistance at a lower cost per kilogram than any alloy grade. Grade 5 dominates plate orders in aerospace, where the strength-to-weight ratio justifies the premium.

Standard Sizes and Tolerances

Sheet (≤ 4.75 mm)

Most mills stock Grade 2 sheet in these dimensions:

• Thickness: 0.5, 0.8, 1.0, 1.5, 2.0, 3.0, 4.0 mm
• Width × Length: 1000 × 2000 mm, 1219 × 2438 mm (4 × 8 ft), 1500 × 3000 mm
• Thickness tolerance: per ASTM B265 Table 5 — typically ±0.05 mm for gauges under 1.6 mm

Plate (> 4.75 mm)

• Thickness: 6, 8, 10, 12, 15, 20, 25, 30, 40, 50 mm (custom up to 150 mm)
• Width × Length: up to 2000 × 4000 mm (wider cuts possible from slab mills)
• Thickness tolerance: ±0.25 mm for plates under 25 mm; ±1 % for thicker sections

Tighter tolerances are available on request but add lead time and cost. If your design can accept standard mill tolerances, specify "ASTM B265 standard" to keep pricing competitive.

Surface Finish Options

Finish	Process	Ra (μm)	When to Specify
Mill pickled	Hot roll + acid pickle	3.0–6.0	General fabrication, welded assemblies
Cold-rolled bright	Cold roll + anneal + light pickle	0.8–1.6	Architectural, medical device housings
Ground	Surface grinding	0.4–1.0	Tight flatness, critical sealing faces
Polished	Mechanical buff	0.1–0.3	Decorative, cleanroom equipment

For chemical process equipment, mill-pickled finish is the standard — the passive oxide layer that forms during pickling actually improves corrosion resistance. Over-specifying a polished finish on industrial plate adds cost without performance benefit.

How to Specify Your Order

A complete purchase order for titanium sheet or plate should include at minimum:

1. Grade and specification — e.g., "ASTM B265 Grade 2"
2. Dimensions — thickness × width × length in mm or inches
3. Quantity — number of pieces or total weight in kg
4. Surface finish — pickled, cold-rolled, ground, or polished
5. Heat treatment condition — annealed (standard for most grades) or mill condition
6. Certification — EN 10204 3.1 MTR is standard; 3.2 with third-party witness for aerospace
7. Edge condition — sheared, slit, or saw-cut (affects flatness near edges)
8. Marking — ink stamp, vibro-etch, or tag-only per your quality system

Omitting any of these fields invites substitution or re-work. The most common ordering mistake we see is specifying Grade 5 without stating heat treatment — mill condition and annealed Ti-6Al-4V have measurably different ductility.

Pricing Factors to Watch

Titanium sheet and plate pricing is driven by four variables:

• Titanium sponge cost — the raw-material baseline, which tracks OREMET/VSMPO spot prices
• Grade complexity — alloy grades require vacuum-arc remelting; each remelt step adds cost
• Gauge and width — thinner gauges require more rolling passes; wider sheets need larger mills
• Order volume — mill-direct orders (typically 500 kg minimum per size) undercut distributor pricing by 15–25 percent

For budget planning, Grade 2 sheet in standard sizes typically runs 30–50 USD/kg at volume, while Grade 5 plate ranges from 55–90 USD/kg depending on thickness and certification requirements. These figures shift quarterly with sponge pricing, so always request a current quote.

Why Work With a Vertically Integrated Supplier

When your supplier controls the full chain — from sponge to ingot to rolled product to cut-to-size — you gain traceability that distributors cannot match. Every plate can be traced back to a specific ingot heat number, and mechanical test data comes from the actual production lot rather than a generic typical-values sheet. For aerospace and medical OEMs subject to AS9100 or ISO 13485 audits, this traceability is not optional — it is a qualification requirement.

BAOTI operates its own VAR melting, hot-rolling, cold-rolling, and finishing lines, which means we issue mill test reports against the exact material you receive. If your application requires dual certification (e.g., ASTM B265 and AMS 4911 for Grade 5 plate), both specs are tested and documented on a single MTR.

Next Steps

Whether you need ten sheets for prototyping or ten tons for a heat-exchanger project, start by sending us your specification and quantity. Our technical sales team will confirm grade availability, advise on the most cost-effective size to minimize scrap, and provide a firm quotation within 48 hours.