チタン長方形チューブ

Titanium Rectangular Tube

Titanium rectangular tube with unequal long and short sides for direction-dependent frame stiffness and compact equipment layouts. Typical RFQs reference 20 × 10 to 200 × 100 mm, 0.5–5.0 mm wall and 1,000–6,000 mm cut lengths; these are quotation guides, not stock.

Grades: Grade 2 / UNS R50400; Grade 5 / UNS R56400
Width B × Height H: 20 × 10 to 200 × 100 mm RFQ reference
Wall t: 0.5–5.0 mm RFQ reference
Cut Length L: 1,000–6,000 mm RFQ reference

Product Detail

Product Introduction

Titanium rectangular tube is defined by unequal outside width and height, wall thickness and the orientation of its long and short axes. It is selected where packaging space and bending stiffness differ by direction, so the drawing must identify installed orientation, side-specific dimensions, bow, twist and connection faces. A round-tube specification does not by itself define this non-round section.

Selection Priorities

Long and short axes

State outside width B, height H, wall t and corner radii separately; identify which face and axis are load-bearing in the assembly.

Directional straightness

Define bow on the long and short faces, twist over length, rectangularity and cut-end orientation because stiffness and fit-up differ by axis.

Manufacturing route

Confirm formed and welded or another approved route, seam location relative to the working face, surface condition and any post-forming heat-treatment requirement.

Product Specifications

Product	Titanium Rectangular Tube	Grade	Titanium Grade 2, Grade 5 or specified alloy
Standard	Titanium rectangular tubing is commonly supplied to a customer drawing and agreed manufacturing/inspection specification. ASTM / ASME terms are the primary purchasing references. EN/W.-Nr. 3.7035 and 3.7165, JIS titanium grade terminology, and GB/T TA2 or TC4 keywords can also be reviewed when the exact product-form standard and revision are stated; they are not automatic equivalents. Do not cite a round heat-exchanger-tube standard as a substitute for non-round geometry and acceptance criteria.	Size & Form	Rectangular hollow section; 20 × 10 to 200 × 100 mm RFQ reference, 0.5–5.0 mm wall and 1,000–6,000 mm cut-length RFQ reference. These values are quotation guidance, not stock.
Tolerance	Drawing-defined long and short sides, wall, corner radii, rectangularity, face-specific bow, straightness, twist and cut-end orientation	Supply Condition	Straight cut lengths in agreed formed or welded condition with protected ends and bundle or case packing
Inspection	Long-side and short-side outside dimensions, wall, corner radii, rectangularity, face-specific bow, straightness, twist, cut-end orientation, surface and weld seam where applicable are reviewed against the order. Product test certificates can be provided.	Documents	Product test certificates can be provided.

Additional Supply & Ordering Details

Useful, technically consistent information consolidated from earlier product pages.

Section definition	Rectangular titanium tube has unequal outside width and height. Specify both outside dimensions, wall, corner radii, length, straightness, twist and rectangularity; width and height orientation must appear on the drawing.
Manufacturing-route boundary	Formed-and-welded, extruded, drawn or machined hollow routes can differ in corner radii, wall distribution and available aspect ratio. Confirm route, seam location and governing project requirements.
Orientation and loading data	Identify the major and minor axes, mating surfaces, seam orientation, cut or hole locations and whether bending, welding or finish machining follows. These inputs are more important than an equivalent round size.
Inspection focus	Measure width, height, diagonals, wall, corner radii, twist, bow and end squareness; inspect seam quality for welded construction and protect broad faces from transport damage.

Send the complete material RFQ
Include grade, specification revision, dimensions, tolerance, quantity, condition, tests and destination.

Request a Quotation

Chemical Composition

Weight percent; maximum unless a range is shown. Titanium is the balance. The ordered specification and grade control.

Grade / UNS	Principal Alloying Elements	Fe max	O max	C max	N max	H max	Ti
Grade 2 / R50400	—	0.30	0.25	0.08	0.03	0.015	Balance
Grade 5 / R56400	Al 5.50–6.75; V 3.50–4.50	0.40	0.20	0.08	0.05	0.015	Balance

Mechanical Properties – Annealed Material Reference

Grade	Ultimate Tensile Strength min	0.2% Yield Strength min	Elongation min
Grade 2	345 MPa	275 MPa	20%
Grade 5	895 MPa	828 MPa	10%

Representative minima only. Product form, section size, heat treatment and the invoked specification determine the certified acceptance values.

Typical Physical Properties

Grade	Density	Elastic Modulus	Thermal Expansion
Grade 2	4.51 g/cm³	Approx. 105 GPa	Approx. 8.6 µm/m·K
Grade 5	4.43 g/cm³	Approx. 114 GPa	Approx. 8.6 µm/m·K

Typical engineering references, not inspection acceptance limits.

Certificates & Inspection Records

SAKY ALLOY quality management system certificate

Services We Can Provide

Specification ReviewGrade, revision, condition and supplementary requirements.

Cut-to-Size SupplyDimensions, machining allowance and tolerances by review.

InspectionDimensions, surface, chemistry and mechanical documentation.

Testing OptionsPMI, UT, PT or other agreed testing where applicable.

TraceabilityMTC, heat/lot identity and inspection records.

Export SupportProtected packing, labels and shipping documents.

Product Packaging

Pipe and tube ends are capped, surfaces are wrapped where required, and bundles or export cases are identified by grade, size, heat and quantity. Typical export packaging for the same physical product form is shown below; final packing is confirmed for each order.

Bundled titanium pipes and tubes with protected ends for export

Application Scenarios

Low-profile equipment frames and enclosures

Material grade, dimensions, condition and inspection must be matched to the application requirements.

Directionally loaded rails, beams and support members

Material grade, dimensions, condition and inspection must be matched to the application requirements.

Compact chemical and marine assemblies with unequal section depth and width

Material grade, dimensions, condition and inspection must be matched to the application requirements.

FAQ

Why must rectangular tube orientation be shown on the drawing?

Its long and short axes have different bending stiffness and different connection faces. The installed orientation affects fit-up and structural behavior.

Which measurements are needed for a rectangular section?

Provide long side B, short side H, wall, corner radii, face-specific bow, rectangularity, twist, length and cut-end orientation.

Is titanium rectangular tube covered by ASTM B338?

ASTM B338 primarily addresses seamless and welded tubes for condensers and heat exchangers. Non-round rectangular sections should be ordered to an explicit drawing and agreed manufacturing and inspection specification.

Can the weld seam be placed on any face?

Seam position and acceptance should be agreed during manufacturing review, especially when one face is visible, machined, bent, clamped or highly loaded.