Carbon steel.
Carbon steel piping is the default for water, steam, oil, gas and general process service where corrosion is not severe.
Can’t find your grade? Send it — we’ll source it.
Our stockist and mill sourcing network extends beyond the grades listed here. Send rare grades, unusual forms and small-quantity requirements for sourcing review.
One enquiry gives us the details to check suitable sources across the network and help move your purchase forward. Share the exact grade, standard, form, size, quantity, delivery town and required date. We’ll confirm availability, minimum order quantity and lead time against your requirement.
Mill test certificate (EN 10204 3.1) supplied with material; third-party inspection on request.
Quick details
| Material grade | Carbon steel (UNS K03006 (A106 Gr. B)) |
|---|---|
| Forms | Pipes, Butt-weld fittings, Flanges |
| Usage / application | Steam and condensate lines, Oil and gas process piping, Fire-fighting and utility water |
| Test certificate | Mill test certificate (EN 10204 3.1) supplied with material; third-party inspection on request. |
| Business type | Stockist and supplier |
| Location | 231/235, Sant Sena Maharaja Marg, Mumbai, Maharashtra 400004, India |
Also searched as: Carbon steel, A106 Gr. B / A105 / WPB, UNS K03006 (A106 Gr. B), W.Nr 1.0425 (P265GH, nearest), P265GH (nearest)
Product information for purchasing teams
Carbon steel piping is the default for water, steam, oil, gas and general process service where corrosion is not severe. The usual set is ASTM A106 Grade B seamless pipe, A234 WPB fittings and A105 flanges. API 5L line pipe and ASTM A333 low-temperature pipe are available on enquiry.
Exact specification, availability and commercial details are confirmed against your enquiry.
Product forms and standards
| Form | Standard |
|---|---|
| Pipes | ASTM A106 Gr. B / ASTM A53 / API 5L Gr. B |
| Butt-weld fittings | ASTM A234 WPB |
| Flanges | ASTM A105 |
Related designation references
| Grade | UNS | Werkstoff Nr. | EN / BS | JIS |
|---|---|---|---|---|
| Carbon steel | K03006 (A106 Gr. B) | 1.0425 (P265GH, nearest) | P265GH (nearest) | STPT 410 |
Cross-standard references are not automatic substitutes. Confirm the exact product form, specification, composition, class and condition before accepting a substitution.
Chemical composition, %
| Grade | C | Mn | Si | P | S | Cr | Ni | Mo | Cu |
|---|---|---|---|---|---|---|---|---|---|
| Carbon steel | ≤ 0.30 | 0.29 – 1.06 | ≥ 0.10 | ≤ 0.035 | ≤ 0.035 | ≤ 0.40 | ≤ 0.40 | ≤ 0.15 | ≤ 0.40 |
Mechanical properties
| Property | Value |
|---|---|
| Tensile strength | ≥ 415 MPa |
| Yield strength | ≥ 240 MPa |
Values per ASTM A106 Grade B pipe. Fittings and flanges follow A234 WPB and A105.. Confirm against the current edition of the standard and your purchase specification.
Density: 7.85 g/cm³
Applications
- Steam and condensate lines
- Oil and gas process piping
- Fire-fighting and utility water
- Structural and general engineering
Questions buyers ask
What is the difference between A106 and A53 pipe?
A106 is seamless pipe intended for high-temperature service. A53 can be seamless or welded and is aimed at general and lower-temperature use. Many projects specify A106 Gr. B for process piping and A53 for utilities.
What are the equivalent grades of Carbon steel?
Carbon steel is UNS K03006 (A106 Gr. B), Werkstoff 1.0425 (P265GH, nearest), EN P265GH (nearest) and JIS STPT 410. Cross-standard references are not automatic substitutes; verify the product form, standard, composition and condition.
In which forms is Carbon steel available?
Pipes to ASTM A106 Gr. B / ASTM A53 / API 5L Gr. B; Butt-weld fittings to ASTM A234 WPB; Flanges to ASTM A105.
What is the density of Carbon steel?
About 7.85 g/cm³ (7,850 kg/m³).
Where is Steel Impex India located?
Steel Impex India is at 231/235, Sant Sena Maharaja Marg, Mumbai, Maharashtra 400004, India We supply across India.