Specify with confidence.
Technical data tables
Chemical composition reference — weight %
Alleima rows are nominal compositions, with limits where marked. ATI rows are flat-product chemistry limits, not pipe limits. “—” means no value is provided here; it does not mean zero.
| Reference material | C | Si | Mn | P | S | Cr | Ni | Mo | Cu | Ti |
|---|---|---|---|---|---|---|---|---|---|---|
| 304 / 304L — Alleima 3R12 | ≤0.030 | 0.5 | 1.3 | ≤0.030 | ≤0.015 | 18.5 | 10 | — | — | — |
| 316 / 316L — Alleima 3R65 | ≤0.030 | 0.4 | 1.7 | ≤0.040 | ≤0.015 | 17 | 11.5 | 2.1 | — | — |
Mechanical property reference
Values apply to the cited mill product and test basis. They are not certificates or universal acceptance values for Tokk Steel material.
| Reference material | Test °C | Rp0.2 / yield (MPa) | Tensile (MPa) | Elongation (%) | Hardness |
|---|---|---|---|---|---|
| 304 / 304L — Alleima 3R12 | 20 | ≥210 | 515–680 | ≥45 | ≤90 HRB |
| 316 / 316L — Alleima 3R65 | 20 | ≥220 | 515–690 | ≥45 | ≤90 HRB |
304 / 304L — Alleima 3R12: Nominal mill chemistry and published seamless tube/pipe properties. Elongation A uses L₀ = 5.65√S₀. For wall above 10 mm the source notes proof strength may be about 10 MPa lower. View source datasheet ↗
316 / 316L — Alleima 3R65: Nominal mill chemistry and published seamless tube/pipe properties. Elongation A uses L₀ = 5.65√S₀. The source states proof strength can be about 10 MPa lower for wall above 10 mm. View source datasheet ↗
Calculated round-tube examples
Illustrative dimensions to explain bore and mass calculations, not a standard or supplied range. ID = OD − 2 × wall. Mass assumes nominal circular geometry and density 8.00 g/cm³. Precision tolerances must be specified separately.
| OD (mm) | Wall (mm) | Calculated ID (mm) | Approx. kg/m |
|---|---|---|---|
| 2 | 0.2 | 1.60 | 0.0090 |
| 3 | 0.3 | 2.40 | 0.0204 |
| 6 | 0.5 | 5.00 | 0.0691 |
| 8 | 1 | 6.00 | 0.1759 |
| 10 | 1 | 8.00 | 0.2262 |
Tables are sourced reference data or explicitly calculated examples. Your order’s grade, product standard and material documentation determine acceptance. Request current pricing with your quantity and specification; no competitor prices or pressure ratings have been transferred.
Coiled tubes: material, wall and installation variables
A coil describes the delivery geometry of a tube. Tubing selection still depends on grade, OD, wall thickness and surface condition. Any connection requirements must be assessed against the fitting system, and the coil dimensions must suit handling and installation.
| Reference item | Technical guidance |
|---|---|
| Grade identity | Select the approved grade |
| Tube dimensions | OD and wall thickness |
| Coil dimensions | Total length, coil diameter and delivery form |
| Installation review | Bending, end connections and fitting compatibility |
How to use this information
Specify total tube length separately from coil diameter. Bending and installation requirements belong to the project and tube dimensions; a generic coil description does not determine bend radius or allowable pressure.
Reference information explains the material or specification. Confirm actual dimensions, grade compliance, certificates and availability with the quotation. Manufacturer-specific approvals and properties apply to that manufacturer’s product.
Technical references: Swagelok — tubing selection and handling · ASTM A269/A269M-25 — general-service tubing
Send the details below so our team can review your requirement. Sizes, supply conditions and documentation will be confirmed with your quotation.
| Material | Stainless steel |
| Grade | Specified grade |
| Manufacturing type | Coiled; specify tube construction |
| Dimensions | Provide outside diameter, wall thickness and length |
| Standard & tolerance | Provide the applicable project specification |
| Finish | Specify your required surface finish |
| Quantity & documentation | Specify quantity and any certificate or inspection requirements |
Describe the tube and its delivery coil
A coil tube enquiry has two sets of dimensions: the tube itself and the coil supplied around it. State grade, OD and wall thickness first, then total tube length, coil diameter and delivery format. If your installation needs an uninterrupted length or a defined bend requirement, include those criteria in the request.
Comparing supplier quotations
Compare total tube length rather than confusing it with coil diameter. Specify any permitted joints or length discontinuities where your project controls them.
Example enquiry checklist
Stainless steel coil tube; grade; OD × wall; total length; coil diameter; construction; delivery form; quantity.
Stainless Steel Coil Tubes supplier enquiries in Mumbai, India
Tokk Steel is the stainless steel pipes and tubes division of Shatrunjay Special Alloy in Mumbai, India. Send your stainless steel coil tubes specification to our team with the grade, dimensions and quantity required by your project.
For a local enquiry in Mumbai, include your preferred collection or delivery arrangements for review. For a project elsewhere in India, include the destination and required date so availability, logistics and the quotation scope can be confirmed. Your location does not replace the technical specification: attach the drawing or material requirement when one is available.
Request a product quotation ↗Specification details for this product
| Detail | Information to provide |
|---|---|
| Tube OD and wall thickness | Specify with the enquiry |
| Total tube length | Specify with the enquiry |
| Coil diameter and delivery form | Specify with the enquiry |
Typical application areas
- Project-specific equipment
- Industrial assemblies
- Requirements defined by your design
Final material suitability should be assessed against your project’s operating conditions and applicable standards.
Buying stainless steel coil tubes
Specify tube dimensions and total length alongside coil diameter, delivery form and unwinding requirements.
Define the tubing and coil geometry
Specify both the tubing and the coil. Tube length, coil diameter and delivery format should be clearly distinguished.
Questions about Stainless Steel Coil Tubes
What should I specify for stainless steel coil tubes?
Specify tube dimensions and total length alongside coil diameter, delivery form and unwinding requirements.
Are all listed sizes and grades held in stock?
Availability, dimensions, lead time and documentation are confirmed with your quotation. Send your exact requirement rather than assuming availability from a product category.
Quotation questions
What should I include in my enquiry?
Include grade, dimensions, quantity, required standard, finish and delivery destination. Attach your specification when sending the email draft.
Can you confirm sizes and availability?
Our team will review your dimensions and confirm availability and lead time as part of the quotation.
