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Capillary Tubes

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Capillary Tubes

 

SS 304 and 316 Capillary Tubing Stockist In India In OD Range Of 0.3mm To 12mm

Capillary Tubes are small bore, thin-wall metal tubes. They suit metering, sensing and precise transfer duties. Bore accuracy matters more than raw flow volume. Navstar Steel stocks Stainless Steel Capillary Tube in bulk. We hold SS 304, SS 316 and 316L grades. Sizes range from 0.3 mm to 12 mm OD. Buyers can lift coils or cut lengths fast. No need to wait on a mill's rolling schedule.

We are a genuine Capillary Tubes Stockist In India. We also export as an SS Capillary Tubing Exporter. Our stock covers Seamless Capillary Tube and Welded Tubing. ASTM A269 covers general instrumentation service duty well. ASTM A213 suits seamless heat exchanger tube duty. Every consignment carries heat-number traceability for full accountability. We also issue EN 10204 3.1 mill certificates. Our desk confirms stock, weight and freight quickly. We serve Mumbai, Pune, Ahmedabad, Chennai and Delhi. Confirmation reaches buyers within the same working day.

Capillary Tube Tech Snapshot Quick Glance

Grades SS 304, 316, 316L, Inconel 625
Standards ASTM A269, ASTM A213
OD Range 0.3 mm - 12 mm
Wall Thickness 0.05 mm - 1.65 mm
Key Alloying Cr‑Ni / Cr‑Ni‑Mo / Ni‑Cr‑Mo‑Nb
Forms Coil, Straight Length, Cut Piece
Temper Annealed / Hard Drawn
MTC EN 10204 Type 3.1
Inspection Third Party TPI On Request
Dispatch 2-5 Days Ex‑Mumbai Stock

Need Capillary Tubing Cut, Coiled Or Certified?

Send us your OD, wall, grade and length - get weight, rate and dispatch date the same working day

Request Quote Now

Table of Contents



Supplier of Inconel 625 Capillary Transfer Tube In EN 2.4856 For Service Temperature Up To 982°C

Beyond stainless grades, we supply Inconel 625 Capillary Tube. This nickel–chromium–molybdenum–niobium alloy resists heat and aggressive chemistry. It stays strong from cryogenic temperatures up to 982°C. Alloy 625 suits downhole injection lines and seal systems. It also performs well in high temperature sensing legs. In Gulf chloride environments, 625 resists pitting well. It also resists cracking better than standard SS tubing

Seamless And Welded Capillary Tubing We Stock

Stainless Steel Capillary Tube
Stainless Steel Capillary Tube
316 Stainless Steel Capillary Tubing
316 Stainless Steel Capillary Tubing
Inconel 625 Capillary Tube
Inconel 625 Capillary Tube

Capillary Tube Forms And Supply Conditions

SMLS Seamless, cold drawn, joint-free bore for critical lines.
WLD Welded from precision strip, economical for metering duty.
COIL Continuous coils for refrigeration and control line runs.
EP Electropolished bore for HPLC and medical devices.

Capillary Tube Grades: Stainless Steel, Nickel Alloys And Monel

Navstar Steel is a full-line Capillary Tubes Stockist In India. We stock more than just 304 and 316 grades. Our racks hold every austenitic and high-nickel grade needed. One enquiry covers stainless, nickel-alloy and Monel tubing. No need to split orders across multiple vendors

Stainless Steel Capillary Tube Grades We Stock

Every grade below is stocked as seamless and welded tubing, per ASTM A269 / A213, from 0.3 mm OD upward

304SS 304 Capillary Tube
304LSS 304L Capillary Tube
309SS 309 Capillary Tube
310SS 310 / 310S Capillary Tube
316SS 316 Capillary Tube
316LSS 316L Capillary Tube
316TiSS 316Ti Capillary Tube
317LSS 317L Capillary Tube
321SS 321 / 321H Capillary Tube
347SS 347 Capillary Tube
410SS 410 Capillary Tube
904LSS 904L Capillary Tube

Nickel Alloy Capillary Tube Grades We Stock

High-nickel capillary tubing for chemistry and heat stainless can't handle, with UNS / Werkstoff references on request

IN 600Inconel 600 Capillary Tube
IN 601Inconel 601 Capillary Tube
IN 625Inconel 625 Capillary Transfer Tube
IN 718Inconel 718 Capillary Tube
IC 800Incoloy 800 / 800H / 800HT Capillary Tube
IC 825Incoloy 825 Capillary Tube
HAST C276Hastelloy C276 Capillary Tube
HAST C22Hastelloy C22 Capillary Tube

Monel Capillary Tube Grades We Stock

Monel capillary tubing for seawater, hydrofluoric acid and sour service, where chloride attack rules out stainless

M 400Monel 400 Capillary Tube
M K500Monel K500 Capillary Tube

Stainless, nickel alloy or Monel - same workflow applies: heat-number traceability, EN 10204 3.1 certification, same-day stock confirmation ex-Mumbai.

Capillary Tubes Stockist In Mumbai - Coils And Cut Lengths Lifted From Khetwadi Warehouse Racks

Confirm your OD and wall over one call and reserve material the same day instead of chasing a mill rolling schedule.

Request Quote Now

SS Capillary Tube Testing, Finish And Packing Specification

What Ships With Every Capillary Tube Order

Testing Route Hydrostatic or non-destructive electric test per ASTM A269 / A213, flare and hardness checks by lot
Surface Finish Bright annealed, pickled, polished or electropolished bore on request
End Finish Square cut, deburred ends; plastic caps fitted on straight lengths
Alloy 625 Compliance Inconel 625 capillary material referenced to NACE MR0175 / ISO 15156‑3 for sour service enquiries
Packing Style Sleeved coils, capped and bundled straight lengths, export wooden boxes with silica gel lining
Traceability Heat number tagged on every coil and bundle, matched to the EN 10204 3.1 certificate pack

Small Diameter Tubing, SS Micro Tubing & Needle Tubing Against Drawing – Duplex Capillary Tubing On Inden

We also supply Needle Tubing, SS Micro Tubing and Duplex Capillary Tubing. These are procured against your drawing and certified before dispatch

Capillary Tube Sizes

Instrument buyers usually specify imperial sizes; hydraulic buyers work in metric. We stock both, with common ODs and a quick conversion table below

0.3 mm 0.5 mm 1/32″ OD 1.0 mm 1/16″ OD 2.0 mm 3.0 mm 1/8″ OD 6.0 mm 8.0 mm 10.0 mm 12.0 mm
Imperial Call-Out Metric OD Typical Use
1/32″ OD Capillary Tubing 0.79 mm HPLC transfer lines, analytical connections
Stainless Steel 1/16 In. Capillary Tubing 1.59 mm Chromatography, instrument impulse lines
1/8″ OD Capillary Tube 3.18 mm Hydraulic control lines, gauge connections
  • Wall options: 0.05 mm to 1.65 mm
  • Thin, regular and heavy wall series
  • Cut-to-length tolerance on request
  • Capillary Tube Weight Chart shared with quote

SS Capillary Tubing Exporter Offers Best Quality To Jebel Ali, UAE

Gulf buyers receive commercial invoice, packing list, certificate of origin and 3.1 MTC scans before the vessel sails.

Request Export Quote

Chemical Composition Of Capillary Tube

Stainless follows ASTM A213 / A269; Inconel 625 follows UNS N06625. Figures are maximum percentages unless a range is shown

Grade C Mn Si P S Cr Ni Mo Others
SS 304 (TP304) 0.08 2.00 1.00 0.045 0.030 18.0-20.0 8.0-11.0 - -
SS 316 (TP316) 0.08 2.00 1.00 0.045 0.030 16.0-18.0 10.0-14.0 2.00-3.00 -
SS 316L (TP316L) 0.035 2.00 1.00 0.045 0.030 16.0-18.0 10.0-14.0 2.00-3.00 -
Inconel 625 (N06625) 0.10 0.50 0.50 0.015 0.015 20.0-23.0 58.0 min 8.0-10.0 Nb+Ta 3.15-4.15, Fe 5.0 max

Mechanical Properties Of Seamless Capillary Tube Grades

ASTM A213/A269 skip mechanical requirements below 1/8 in. ID or 0.015 in. wall, micro sizes go by chemistry and dimensions instead.

Grade Tensile Strength, min Yield Strength, min Elongation, min Hardness, max
SS 304 (ASTM A213) 515 MPa (75 ksi) 205 MPa (30 ksi) 35% 90 HRB
SS 316 (ASTM A213) 515 MPa (75 ksi) 205 MPa (30 ksi) 35% 90 HRB
SS 316L (ASTM A269) 485 MPa (70 ksi) 170 MPa (25 ksi) 35% 90 HRB
Inconel 625 (annealed, typical) 830-1100 MPa - - -

Stainless Steel Capillary Tubing Equivalent Grades

Use this cross-reference for European or Japanese drawings, the same stock answers UNS, EN and JIS call-outs

Grade UNS EN / Werkstoff Nr. EN Name JIS
SS 304 Capillary Tube S30400 1.4301 X5CrNi18-10 SUS 304
SS 316 Capillary Tube S31600 1.4401 X5CrNiMo17-12-2 SUS 316
SS 316L Capillary Tubes S31603 1.4404 X2CrNiMo17-12-2 SUS 316L
Inconel 625 Capillary Transfer Tube N06625 2.4856 NiCr22Mo9Nb -

What You Get As A Capillary Tubes Buyer?

  • Burr-free cut lengths with squared, capped tube ends
  • Coils, straights and cut pieces from 0.3 mm OD stock
  • Capillary tubing certified with EN 10204 3.1 reports
  • Custom OD, wall and length drawn to your drawing

Capillary Tube Stainless Steel HS Code And Export Documentation

Confirming the tariff line early helps UAE, Canada and South Africa buyers clear shipments faster. Seamless stainless capillary tube falls under HS 7304.41; welded under HS 7306.40. Confirm the final line with your customs broker

Export File We Prepare For Every Shipment

Seamless Tariff Line HS 7304.41 - cold-drawn / cold-rolled stainless steel tubes of circular cross-section
Welded Tariff Line HS 7306.40 - other welded stainless steel tubes of circular cross-section
Document Pack Commercial invoice, packing list, certificate of origin, 3.1 MTC, fumigation where required
Exit Points Nhava Sheva (JNPT) for sea freight, Mumbai air cargo complex for urgent lots

ASTM A269 Capillary Tube Supplier In India Shipped With EN 10204 3.1 Certification

Canadian instrument shops get heat-traceable coils with paperwork ready for incoming inspection sign-off.

Get Supplier Quote

Capillary Tube Price In India: What Decides Your Per Metre Rate

Price is quoted per metre or per kg, with no single rate for every combination. Six factors move your Price List, so we price against the exact drawing.

Six Price Drivers On Every Capillary Tube Quote

GRADE 304 is lowest; 316L costs more; Inconel 625 carries alloy pricing.
OD × WALL Finer bores need more draw passes, costing more per kg.
FORM Coils, straight lengths and cut pieces price differently.
FINISH Electropolished or bright annealed costs more than pickled stock.
QUANTITY Bulk bookings unlock better rates than sample lots.
TESTING Inspection and extra NDT add certification cost per lot.

Mail your size, grade and quantity for a same-day ex-Mumbai rate.

Delivery Estimate For SS Capillary Tubing Orders

Typical windows once your order is confirmed against ready stock.

Ex-Stock Dispatch
2-5 Working Days

Packed and dispatched from our Mumbai stock.

Sea Freight
7-30 Days

Ships from Nhava Sheva; lane sets the window.

Air Freight
5-9 Days

Best for urgent lots, within a week.

Country-Specific ETA
Lane Dependent

UAE: 1 week. Canada, South Africa: 3-5 weeks.

Transit varies by port and customs - ask our desk for the live schedule. Government Recognized Export House serving 20+ countries.

Where Buyers Use Our Metal Capillary Tubes

Capillary Tube Applications We Supply Against

HPLC And Chromatography Transfer Lines
Hydraulic Control Lines And Impulse Tubing
Refrigeration And HVAC Evaporator Circuits
Medical Devices And Needle Tubing
Temperature Sensing And Thermometer Systems
Chemical Injection And Instrumentation Lines

Capillary Tube Buyer Questions, Answered

What sizes of stainless steel capillary tubes do you keep in stock?

0.3-12 mm OD, wall 0.05-1.65 mm. Coils, lengths, cut pieces; custom sizes on drawing.

How is capillary tube price calculated in India?

Per metre or kg, by grade, size, form, finish and testing. Share your list for a same-day rate.

Should I order ASTM A269 or ASTM A213 capillary tubing?

A269 for general/instrumentation duty; A213 for boiler/heat exchanger duty. Both cover TP304/TP316.

What is the HS code for stainless steel capillary tubes?

Seamless: HS 7304.41. Welded: HS 7306.40. Confirm exact sub-heading with your broker.

Are you a Capillary Tubes Stockist, Supplier or Manufacturer In India?

All three — stockist, supplier and manufacturer, depending on your order.

Do you export capillary tubing to the UAE, Canada and South Africa?

Yes, by sea or air with full certification. Dispatch 2-5 days; transit 5-30 days.