B2B Steel Distribution
Steel Tube Supplier for Mechanical, Process and Precision Service
Source steel tube by type, grade, outside diameter and wall thickness. Build a complete tube specification and hand it to Noor Deira Steel for quotation.
Free, no-obligation specification review
Information current as of
Product Types & Range
Tube routes matched to service and tolerance
Seamless, welded, ERW, mechanical and precision tube each suit a different kind of service. Choose the route that matches pressure, tolerance and cost — availability is confirmed against your specification, not from a standing catalogue.
The right route for pressure, tolerance and cost
Seamless for pressure, welded for economy, precision for a close-tolerance bore.
Seamless Steel Tube
Pierced from a solid billet — no weld seam, uniform wall strength under pressure.
Welded Steel Tube
Rolled and longitudinally welded from strip or coil — economical for structural use.
ERW Steel Tube
Electric resistance welding produces a consistent seam for mechanical and structural tube.
Mechanical Steel Tube
Drawn-over-mandrel and cold-finished tube for machined, close-tolerance parts.
Precision Steel Tube
Cold-drawn and cylinder-honed tube with tight dimensional and surface control.
See the full tube range
Compare every route in one place and find the one that fits your service.
Explore steel tubes by type
Steel Tube Types
Seamless, welded, ERW, mechanical and precision tube compared.
Learn moreSeamless Steel Tube
No weld seam, uniform wall for pressure service.
Learn moreWelded Steel Tube
Longitudinal weld for structural and fluid service.
Learn moreERW Steel Tube
Electric-resistance welded seam, cost-efficient.
Learn moreMechanical Steel Tube
DOM and cold-finished for machined components.
Learn morePrecision Steel Tube
Cold-drawn, cylinder-honed to tight tolerance.
Learn moreMaterials, Categories & Coatings
Material and finish set the service envelope
Carbon, stainless and galvanized tube serve distinct duties, and the surface finish decides corrosion, forming and tolerance performance. Confirm the material and finish together.
Carbon Steel Tube
A519, A513 for mechanical, structural and general service.
View materialStainless Steel Tube
304 / 316 grades for corrosion and hygiene service.
View materialGalvanized Steel Tube
Hot-dip zinc for outdoor and conduit service.
View materialAlloy & Boiler Tube
A213 alloy grades for elevated-temperature service.
View materialSurface finishes & coatings
Black / mill finish
As-rolled or as-welded with the mill oxide scale left intact.
Galvanized (hot-dip)
Zinc coating for atmospheric and conduit corrosion resistance.
Cold-drawn (CD) / DOM
Cold-finished for tighter tolerance and smoother surface.
Honor & polished
Precision surface for hydraulic-cylinder and instrumentation use.
Pickled & oiled
Clean, scale-free surface for drawing and forming.
Compare materials before you commit, and use our surface finish guide to match the coating to the service. The MTC states the material and the finish, tying the tube back to the standard before it ships.
Specification Builder
Build a confirmation-ready tube specification
Select the type, material, grade, standard, dimensions and delivery terms. The builder compiles a summary you can copy, and hands the whole specification to our commercial department for quotation.
Your specification
A printable summary compiled from your selections.
- Tube type
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- Material
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- Grade
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- Standard
- —
- Outside diameter
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- Wall thickness
- —
- Length
- —
- Quantity
- —
- Surface finish
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- Documents
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- Application
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- Destination
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- Incoterm
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- Delivery date
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Proposed method: tube mass is calculated from OD, wall and material density; the commercial department re-verifies it against the governing standard and the MTC before quoting. Assumptions honoured as stated.
Grades, Standards, Sizes & Tolerances
Decision-ready tables for tube selection
Steel tube is specified by outside diameter, wall thickness, grade and governing standard. Reference the tables below, then confirm your exact requirement against the standard before ordering.
Grade & standard reference
| Standard | Grades | Application fit |
|---|---|---|
| ASTM A519 | 1020 / 1026 / 4130 | Seamless carbon & alloy mechanical tube |
| ASTM A513 | Type 5 DOM | Electric-welded drawn-over-mandrel tube |
| ASTM A179 | Low-carbon steel | Seamless cold-drawn heat-exchanger & condenser tube |
| ASTM A213 | T2 / T11 / T22 | Seamless ferritic & austenitic boiler tube |
| EN 10305-1 | E235 / E355 | Cold-drawn seamless precision steel tube |
| ASTM A500 | Gr. B / C | Cold-formed welded structural tubing |
Common outside-diameter & wall reference
| Outside diameter | Wall range | Typical use |
|---|---|---|
| 6.35 mm | 0.89 – 2.11 mm | Instrumentation and control tubing |
| 12.7 mm | 1.24 – 3.05 mm | Hydraulic and pneumatic lines |
| 25.4 mm | 1.65 – 6.35 mm | Heat-exchanger and mechanical parts |
| 50.8 mm | 2.11 – 8.74 mm | Machinery and hydraulic cylinders |
| 76.2 mm | 3.05 – 9.53 mm | Structural and fluid service |
| 101.6 mm | 3.40 – 12.7 mm | Boiler, pressure and process piping |
Dimensions are shown for reference and are governed by the product standard. Tolerances for outside diameter, wall thickness, straightness and surface condition follow the applicable standard — confirm the tolerance class with the governing reference.
Dimension
OD and wall stated and verified against the standard.
Tolerance
Tolerance class matched to forming and service intent.
Finish
Surface finish aligned to corrosion and forming duty.
Fit
Application fit confirmed with the commercial team.
Grades & standards
Steel Tube Grades
A complete grade map by material and service.
Read moreSteel Tube Standards
A519, A513, A179, A213, EN 10305 compared.
Read moreA519 Grade 1020 Tube
Seamless carbon mechanical — grade 1020.
Read moreA519 Grade 1026 Tube
Seamless carbon mechanical — grade 1026.
Read moreA179 Heat Exchanger Tube
Seamless cold-drawn low-carbon tube.
Read moreA213 Boiler Tube
Seamless alloy tube for elevated temperature.
Read moreA513 Type 5 DOM Tube
Electric-welded drawn-over-mandrel tube.
Read moreEN 10305 Precision Tube
Cold-drawn seamless precision tube.
Read moreTechnical resources
Quality, Testing & Documentation
Every tube carries a traceable paper trail
The tube consignment is released with the Mill Test Certificate and supporting documents that tie it back to the heat and heat-treatment condition of origin — the evidence industrial buyers require.
Mill Test Certificate (MTC)
Chemistry, mechanical properties and heat treatment per heat.
Heat traceability
Tube traceable to the heat number and cast of origin.
Dimensional conformity
OD, wall and straightness verified against the standard.
Pressure & NDT
Hydrostatic or non-destructive testing as the service requires.
Inspection
Milestone inspection agreed at order stage.
Shipping documents
Packing, commercial and destination documents closed out per Incoterm.
Procurement Insight
Why tube mass climbs with OD — and wall does the heavy lifting
A single verified calculation that anchors tube selection, so an industrial buyer can sanity-check any quoted section before committing.
The relationship
For round tube of outside diameter D and wall t (both in mm), the mass per metre is m = 0.02466 × t × (D − t) kg/m. Even a small change in wall thickness moves the mass significantly because the wall multiplies the full (D − t) term.
50.8 × 3.05 mm
≈ 3.58 kg/m
50.8 × 6.35 mm
≈ 6.96 kg/m
50.8 × 8.74 mm
≈ 9.06 kg/m
Source: carbon steel density 7.85 g/cm³, standard mass-per-metre formula for round tube (m = 0.02466 × t × (D − t) for carbon). The commercial department re-verifies the governing standard and the MTC before quoting. Last reviewed 30 August 2026.
The buyer takeaway
State OD and wall — a bare diameter is not enough to quote.
Two tubes of the same outside diameter can carry very different mass per metre depending on wall thickness. Naming both pins the section down and keeps the quotation accurate against the MTC.
Applications & Industries
Tube duty spans automotive, machinery, boiler and instrumentation
Each application sets its own grade, tolerance and documentation requirement. Share the target service and we align the tube to it.
Verified at the point of service
Dimension, tolerance and surface checked against the intended duty.
Automotive
Concern: Close tolerance, crash and fatigue performance.
Which grade, forming route and tolerance class apply?
Machinery
Concern: Machinability, straightness and wall concentricity.
Is a drawn or DOM tube required for the machined part?
Boilers
Concern: Elevated-temperature strength and corrosion.
Which A213 grade and pressure code govern the tube?
Manufacturing
Concern: Repeatable section and economical weld seam.
Does a welded or seamless route fit the cost and service?
Power Generation
Concern: High-temperature creep and oxidation.
Which alloy grade and inspection hold point apply?
Hydraulic Cylinders
Concern: Honed bore, straightness and pressure rating.
What bore tolerance and surface finish are specified?
Instrumentation
Concern: Small-diameter cleanliness and dimensional control.
What maximum OD and wall schedule are required?
Explore by application & industry
GCC Markets, Logistics & Incoterms
Steel tube supply across the Gulf Cooperation Council
Noor Deira Steel coordinates tube supply to six GCC markets, aligning grade, wall schedule and documentation to each destination's downstream requirement.
United Arab Emirates
Machinery, hydraulic and precision tube from our Dubai base.
We match tube type, grade and wall schedule to UAE machine shops and hydraulic cylinder builders, then coordinate domestic delivery from our Dubai base.
Explore United Arab Emirates
Saudi Arabia
Boiler, process and EPC-run tube quantities.
For Saudi industrial and power work we align boiler and mechanical tube certificates to project hold points, and plan shipment of project quantities.
Explore Saudi Arabia
Qatar
Instrumentation and process tube with technical approval.
Qatar process supply prioritises technical submittal approval — we coordinate the tube specification and document set before quotation.
Explore Qatar
Oman
Port-oriented tube for industrial and desalination work.
Oman industrial and desalination supply is concentrated through port destinations, harmonising tube grades with process requirements.
Explore Oman
Kuwait
Mechanical tube and hydraulic cylinder stock programs.
Kuwait machine-shop supply links tube outside diameter and wall to cylinder and machining detail, with shipment agreed against destination.
Explore Kuwait
Bahrain
Industrial tube and re-export coordination.
Bahrain industrial supply depends on accurate project documentation — we coordinate tube specification and documents to the delivery requirement.
Explore BahrainTrust & Commercial Support
Availability and terms you can act on
Tube supply is rarely a single transaction — it is the recurring feedstock of a machine shop or process plant. We structure the support industrial buyers depend on, order after order.
Specification clarity
We reconcile type, grade, OD and wall to the service before quoting.
Transparent quotation
Availability and delivery terms stated on request, with no hidden mark-ups.
Documentation
MTC, heat traceability and shipping documents closed out per consignment.
GCC coordination
Deliveries planned to destination with the Incoterm agreed up front.
Why buyers choose Noor Deira Steel
The concern
Wrong grade or wall stalls a whole production run
Our capability
We confirm grade, outside diameter and wall against the governing standard first.
The outcome
One correct tube selection — no re-quote or line shut-down.
The concern
A bare diameter mis-quotes the section
Our capability
We pin the OD and wall thickness before quoting the mass per metre.
The outcome
An accurate, verification-ready quotation against the standard.
The concern
Documentation gaps hold up process and boiler inspections
Our capability
We close MTC, traceability and shipping documents per consignment.
The outcome
Tube released to production without paperwork hold-ups.
Enquiry-to-Delivery
From first contact to delivered tube
A predictable eight-stage journey from first contact through specification, technical review, quotation, order, quality, packing, shipping, delivery and after-sales.
- 01
First contact
Tube type, material, grade, OD, wall and quantity scope.
- 02
Specification review
Type and grade reconciled against governing standard.
- 03
Technical review
Dimension and tolerance fit confirmed for the service.
- 04
Quotation
Availability, pricing on request and delivery terms.
- 05
Order
Purchase order confirmed against the quotation.
- 06
Quality control
MTC and test documents verified against the order.
- 07
Packing & shipping
Bundled, tagged and coordinated to destination.
- 08
Delivery & after-sales
Handed to site with closed-out documents.
Partners & Testimonials
Trusted by GCC industrial buyers
We work alongside machine shops, process plants and fabrication workshops across the region. Recommendations are shared on request — we never fabricate client names.
"Noor Deira Steel reconciled the tube grade and wall against our hydraulic-cylinder tolerance before quoting — the order matched the MTC exactly."
GCC Machine Shop Partner
Hydraulic cylinder & precision tube programme
Testimonials reflect documented working relationships and are shared with permission. We do not invent client names, companies or endorsements.
Frequently Asked Questions
Steel tubes, answered
The questions procurement teams, machine shops and process engineers ask most, answered plainly.
What steel tubes can Noor Deira Steel supply?
Seamless, welded, ERW, mechanical (DOM) and precision steel tubes in carbon, stainless and galvanized material. Availability is confirmed against your specification, not from a standing catalogue.
What is the difference between a tube and a pipe?
Tubes are specified by outside diameter and wall thickness with tighter dimensional tolerance, and are typically used for mechanical, structural and instrumentation service. Pipes are specified by nominal bore and schedule, and are used to convey fluids. The distinction is specification intent, not just size.
How do I choose between seamless and welded tube?
Seamless is preferred for pressure, elevated-temperature and critical service where a uniform wall and no weld seam are required. Welded (including ERW and DOM) is economical for structural and mechanical work. Confirm the service pressure, temperature and code, then select the route.
What is DOM tube and when should I specify it?
Drawn-over-mandrel (DOM) tube is electric-welded tube that is cold-drawn over a mandrel to refine the inside diameter, wall concentricity and surface finish. It suits mechanical parts and hydraulic cylinders that need a close-tolerance bore.
Which grades and standards govern steel tube?
Common references include ASTM A519 (seamless mechanical), A513 (welded/DOM), A179 (heat-exchanger), A213 (boiler) and EN 10305 (precision). The grade (such as 1020 or 4130) defines chemistry and mechanical minimums under its governing standard. Specify both.
What information do I need to request a steel tube quotation?
Tube type and material, grade, standard, outside diameter, wall thickness, quantity, documents, application, destination and Incoterm. The Specification Builder collects these fields and hands them to our commercial department.
Does Noor Deira Steel supply steel tube across the GCC?
Yes — Noor Deira Steel coordinates steel tube supply to the UAE, Saudi Arabia, Qatar, Oman, Kuwait and Bahrain, with Incoterms, bundling and destination documents agreed per order. Lead time is confirmed at quotation stage.
Request a Quote
Request your steel tube quotation
Tell us what you need and our commercial department will respond with availability and terms.
Email
sales@noordeirasteel.ae
WhatsApp / Mobile
+971 56 398 0860
Address
Office 1015, Churchill Executive Tower, Business Bay, Dubai, UAE
Working hours
Mon–Sat: 8.00 AM – 6.00 PM · Sun: Closed
"We would rather spend two minutes clarifying a tube specification than quote the wrong wall thickness twice."