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 | — | — | — |
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 |
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 ↗
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.
Thin-wall tubing: dimensions and connection fit
Wall thickness, outside diameter, surface finish and hardness affect tubing selection. Thin wall is a relative description, so the enquiry needs actual dimensions and tolerance. A fitting manufacturer may also specify an acceptable wall range for its connection.
| Reference item | Technical guidance |
|---|---|
| Grade identity | 304 / UNS S30400 |
| Nominal wall relation | Wall = (OD − ID) / 2 for a circular tube |
| Connection review | OD, wall, hardness and surface condition |
| Tube standard | Select the project’s applicable standard |
How to use this information
Use the minimum permitted wall from the ordered tolerance when assessing a design. Keep burr removal and handling requirements clear so tube ends and surfaces remain suitable for assembly.
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: Alleima 3R12 — 304/304L grade reference · Swagelok — tubing selection and handling
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 | 304 |
| Manufacturing type | Specify seamless or welded where applicable |
| 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 |
Make “thin wall” a measurable requirement
Specify the actual wall thickness and its tolerance. Include outside diameter, cut length and straightness requirements where they affect fit or fabrication. For a component with close clearances, use a drawing to show which dimensions are critical. Identify how the tube will be joined or handled when those steps impose additional dimensional or end-condition requirements.
Comparing supplier quotations
Compare wall thickness and permitted variation together. Two nominally similar thin-wall tubes may not meet the same fit requirement if their tolerances differ.
Example enquiry checklist
SS 304 thin-wall tube; OD; nominal wall and tolerance; straightness; cut length; finish; quantity; drawing reference.
SS 304 Thin Wall 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 ss 304 thin wall 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 |
|---|---|
| Outside diameter | Specify with the enquiry |
| Wall thickness and thickness tolerance | Specify with the enquiry |
| Straightness and cut length | 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 ss 304 thin wall tubes
Define nominal wall thickness and permitted variation rather than relying on the relative term thin wall.
Define the purchase specification
A thin wall requirement needs an actual thickness and tolerance. Consider handling, support and fabrication requirements alongside the dimensional specification.
Questions about SS 304 Thin Wall Tubes
What should I specify for ss 304 thin wall tubes?
Define nominal wall thickness and permitted variation rather than relying on the relative term thin wall.
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.
