Project Description
06Cr13 / 410S Stainless Steel Seamless Tube
06Cr13 — also designated as 410S, S41008, X6Cr13 (1.4000), SUS410S, and 08X13 — is a low-carbon ferritic stainless steel specifically designed to eliminate hardening in the weld heat-affected zone. Unlike its martensitic counterpart 410, the controlled carbon content of 06Cr13 prevents austenite formation during heating, meaning the material remains ferritic through the full thermal cycle and does not require post-weld heat treatment to restore ductility and toughness.
As a supplier of stainless steel seamless tubes backed by integrated steelmaking and pipe-making capabilities, Fushun Steel Tube delivers 06Cr13 tubes to EN 10216-5 and EN 10297-2 requirements, with full traceability from melt to finished product. The grade offers a practical balance of moderate corrosion resistance, excellent formability, and reliable weldability at a competitive cost point compared to austenitic grades like 304 or 316.
Key Applications
Thanks to its stable ferritic microstructure, good oxidation resistance at moderate temperatures, and freedom from post-weld cracking, 06Cr13 seamless tubes serve a range of industrial applications where reliability and cost-effectiveness are equally important:
- Petroleum refining — fractionator trays, tower internals, column packing supports, and heat exchanger tubes handling mildly sour and sweet hydrocarbon streams
- Chemical processing — distillation column tubes, condenser tubes, and piping for organic acids and dilute inorganic media at ambient to mildly elevated temperatures
- Power generation — boiler tubes for moderate-temperature superheater and reheater sections, feedwater heater tubing, and economizer tubes with scaling resistance up to approximately 650 °C
- Flue gas desulfurization (FGD) — absorber vessel internals, spray headers, and piping exposed to wet limestone/gypsum slurry where chloride levels are controlled
- Thermal oxidizers and incinerators — combustion chamber tubes and heat recovery sections operating below 650 °C in oxidizing atmospheres
- Automotive exhaust systems — manifold tubing, catalytic converter shells, and exhaust piping requiring weldability without post-weld annealing
- Food processing equipment — product-contact tubing in dairy, beverage, and edible-oil processing where 410S provides adequate cleanliness and corrosion resistance
For projects requiring tighter dimensional tolerances and improved surface finish, our cold-drawn precision tubes in 06Cr13 are available for hydraulic, instrumentation, and mechanical applications. If your operating conditions involve aggressive chlorides or sustained high temperatures, contact us for a free quote to discuss alternative grades.
Specifications & Standards
The 06Cr13 grade is recognized across major international standards for stainless steel tubing. Fushun Steel Tube manufactures and certifies tubes to the following specifications:
Seamless Tube & Pipe Standards
- ASTM A268/A268M — Grade TP410S, ferritic stainless steel seamless and welded tubing for general service
- EN 10216-5 — Grade X6Cr13 (1.4000), seamless steel tubes for pressure purposes — stainless steel tubes
- EN 10297-2 — Grade X6Cr13, seamless circular steel tubes for mechanical and general engineering purposes — stainless steel
- GB/T 14976 — Grade 06Cr13, stainless steel seamless tubes for fluid transport
- GB/T 14975 — Grade 06Cr13, stainless steel seamless tubes for structural applications
- JIS G3463 — Grade SUS410S, stainless steel boiler and heat exchanger tubes
Equivalent Grade Designations
| Standard | Designation |
|---|---|
| GB / UNS | 06Cr13 / S41008 |
| AISI / ASTM | 410S |
| EN | X6Cr13 (1.4000) |
| JIS | SUS410S |
| GOST | 08X13 (08Х13) |
| Legacy GB | 0Cr13 |
Available Sizes & Delivery
| Product Type | Outer Diameter (mm) | Wall Thickness (mm) | Length (m) |
|---|---|---|---|
| Hot-Rolled Seamless | 32–630 | 2.5–50 | 4–12 (fixed or random) |
| Cold-Drawn Seamless | 6–219 | 0.5–25 | Up to 18 (straightened) |
| Cold-Rolled Precision | 6–114 | 0.5–12 | Up to 15 (fixed lengths) |
Delivery Information
- Ready Stock (Common Sizes)
- Approximately 7 working days from order confirmation. We maintain inventory of frequently specified 06Cr13 tube dimensions including OD 19–89 mm with standard wall thicknesses under ASTM A268 and GB/T 14976.
- Custom / Non-Standard Specifications
- MOQ 2–3 tons, with production lead time of approximately 25–35 working days depending on order complexity and current mill schedule.
- Small Trial Orders
- Accepted for special grades and non-standard dimensions — ideal for project qualification, prototype development, and first-article testing before committing to volume production. Tell us your specifications and we will work out a tailored quotation.
- Volume Orders
- Negotiable pricing and flexible delivery schedules are available for contract quantities exceeding 20 tons. Contact our commercial team to discuss your annual procurement plan.
Chemical Composition
The defining characteristic of 06Cr13 is its tightly controlled low carbon content, which suppresses martensite formation during cooling from elevated temperatures and ensures a fully ferritic microstructure in the as-welded condition. The tables below present the ladle analysis limits under the primary international standards.
| Element | ASTM A268 TP410S | EN 10216-5 X6Cr13 | GB/T 14976 06Cr13 | JIS G3463 SUS410S |
|---|---|---|---|---|
| C (Carbon) | ≤ 0.08 | ≤ 0.08 | ≤ 0.08 | ≤ 0.08 |
| Mn (Manganese) | ≤ 1.00 | ≤ 1.00 | ≤ 1.00 | ≤ 1.00 |
| Si (Silicon) | ≤ 1.00 | ≤ 1.00 | ≤ 1.00 | ≤ 1.00 |
| P (Phosphorus) | ≤ 0.040 | ≤ 0.040 | ≤ 0.040 | ≤ 0.040 |
| S (Sulfur) | ≤ 0.030 | ≤ 0.015 | ≤ 0.030 | ≤ 0.030 |
| Cr (Chromium) | 11.50 – 13.50 | 12.00 – 14.00 | 11.50 – 13.50 | 11.50 – 13.50 |
| Ni (Nickel) | — | ≤ 0.75 | ≤ 0.60 | — |
Note the slightly wider chromium range in EN 10216-5 (12.00–14.00%) compared to ASTM and GB standards (11.50–13.50%). EN also imposes a tighter sulfur limit of ≤ 0.015%. Fushun Steel Tube produces 06Cr13 to the controlling specification specified in the purchase order, with each heat traceable to its original ladle analysis per EN 10204 3.1 certification.
Manufacturing Process
06Cr13 stainless steel seamless tubes begin in our electric arc furnace (EAF), where carefully selected scrap and ferroalloys are melted and refined. The molten steel is transferred to a ladle furnace (LF) for precise composition trimming and desulfurization, then undergoes vacuum degassing (VD) to reduce dissolved gases and ensure inclusion cleanliness. For applications demanding the highest metallurgical integrity — such as critical boiler or pressure vessel service — we offer optional ESR or VIM+VAR remelting routes that further refine the solidification structure and minimize microsegregation.
The cast billets are hot-pierced and rolled into seamless tube shells on our retaining-mandrel mill, then processed through stretch-reducing and sizing stands to achieve the ordered dimensions. For precision applications, the hot-rolled shells are further processed by cold drawing or cold rolling through multiple passes with intermediate annealing, producing tubes with tight dimensional tolerances, smooth surface finish, and enhanced mechanical uniformity. Final annealing at 750–800 °C restores the equilibrium ferritic structure before pickling, straightening, inspection, and packing.
Mechanical Properties
The mechanical properties of 06Cr13 tubes are determined by the final annealing treatment and the applicable delivery standard. The following table summarizes minimum or typical values at room temperature in the annealed condition.
| Property | ASTM A268 TP410S | EN 10216-5 X6Cr13 | GB/T 14976 06Cr13 |
|---|---|---|---|
| Tensile Strength, Rm (MPa) | ≥ 415 | 400 – 630 | ≥ 410 |
| Yield Strength, Rp0.2 (MPa) | ≥ 205 | ≥ 220 | ≥ 205 |
| Elongation, A (%) | ≥ 22 | ≥ 20 (l) / ≥ 22 (t) | ≥ 20 |
| Hardness | ≤ 89 HRB | — | ≤ 183 HB |
EN 10216-5 reports elongation values separately for longitudinal (l) and transverse (t) test piece orientations. The tensile strength under EN is specified as a range (400–630 MPa) rather than a minimum-only value, reflecting tighter process control expectations in European pressure equipment codes. Request a sample for independent mechanical testing against your project specifications.
Heat Treatment
All 06Cr13 seamless tubes are supplied in the annealed condition unless otherwise specified. Annealing is performed in controlled-atmosphere furnaces to achieve a uniform ferritic grain structure free of martensite and sigma-phase precipitates.
| Treatment Type | Temperature Range | Holding Time | Cooling Method |
|---|---|---|---|
| Full Annealing | 750 – 800 °C (1382 – 1472 °F) | 1 – 2 hours, per wall thickness | Air cool or controlled furnace cool |
| Stress Relieving | 650 – 750 °C (1202 – 1382 °F) | 1 – 2 hours | Air cool |
Because 06Cr13 is a non-hardenable ferritic grade, it does not respond to quench-and-temper heat treatment cycles. Its mechanical properties are governed by the chromium solid-solution strengthening and grain size developed during final annealing. Cold-worked tubes (e.g., cold-drawn or cold-rolled) are fully annealed after the final reduction pass to restore ductility and relieve residual stresses. Stress relieving after welding or light cold forming typically does not degrade the corrosion resistance provided the temperature stays within the recommended range and exposure time is controlled.
Surface Finish & Tolerances
Fushun Steel Tube offers 06Cr13 seamless tubes in a range of surface finishes matched to end-use requirements:
- Hot-rolled + pickled — matte gray finish, free of mill scale; standard for general-service and structural tubing
- Cold-drawn/cold-rolled + bright annealed — smooth, reflective surface with Ra typically below 1.6 µm; suitable for instrumentation, hydraulic, and food-contact applications
- Honed bore — ID honed to Ra 0.2–0.4 µm; available for hydraulic cylinder tubes and pneumatic power system tubing
Outside diameter tolerances meet the requirements of the governing delivery standard: typically ±0.75% of nominal OD (minimum ±0.3 mm) for hot-rolled tubes, tightening to ±0.08 mm or better for cold-drawn precision tubes under DIN 2391-1 or equivalent specifications. Wall thickness tolerances are ±10% for hot-rolled and ±5% to ±8% for cold-finished products, with tighter bands available on request.
Quality Assurance & Testing
Every lot of 06Cr13 seamless tube undergoes a systematic inspection protocol from raw material receipt to final dispatch, operating under an ISO 9001 certified quality management system:
- Incoming material verification — ladle chemistry check by optical emission spectrometry (OES); billet surface and internal quality confirmed by visual inspection and ultrasonic testing
- In-process inspection — hot and cold dimensional checks at each production stage; surface quality monitoring during drawing and rolling
- Finished product testing — full non-destructive testing suite including eddy current or ultrasonic testing per the governing standard; hydrostatic pressure test for pressure-retaining tubes; tensile testing at room temperature; flattening and flaring tests for ductility verification; hardness testing; dimensional inspection including straightness and end-squareness; metallographic examination for grain size and microstructural uniformity
- Certification — EN 10204 3.1 inspection certificate issued as standard, containing the full chemical analysis, mechanical test results, NDT report, and dimensional verification records. EN 10204 3.2 certificates, witnessed by a third-party inspection agency, are available upon request for critical applications
Packing & Shipping
06Cr13 seamless tubes are packed to protect surface quality during transit and storage. Standard export packing consists of individual tubes bundled in hexagonal or square formation with steel straps, protected by woven water-resistant cloth or plastic sheeting. Tube ends are fitted with plastic caps or bevel protectors to prevent mechanical damage. Cold-drawn and honed tubes receive additional corrosion-inhibiting oil coating and are packed in wooden crates lined with VCI (volatile corrosion inhibitor) paper. Each bundle is tagged with heat number, specification, size, and net weight for full traceability through to the installation site.
Shipments depart from major Chinese ports (Shanghai, Tianjin, Ningbo, or Guangzhou) via sea freight in 20-foot or 40-foot containers, or via break-bulk for large-diameter/long-length orders. Air freight and door-to-door express courier service are available for urgent requirements and small trial quantities. Contact us for a free quote including freight options to your destination.
Frequently Asked Questions
What size range is available for 06Cr13/410S stainless steel seamless tubes?
We supply 06Cr13 seamless tubes from OD 6 mm to 630 mm with wall thickness from 0.5 mm to 50 mm. Hot-rolled tubes cover the OD 32–630 mm range; cold-drawn and cold-rolled precision tubes are available up to OD 219 mm and OD 114 mm respectively. Standard lengths range from 4 to 12 meters for hot-rolled tubes, with up to 18 meters possible for cold-finished products. Custom sizes outside these ranges can be manufactured to order.
How does 410S compare to 304 stainless steel for corrosion resistance and cost?
410S is a ferritic chromium steel containing approximately 12–14% Cr with no significant nickel addition, whereas 304 is an austenitic grade containing 18% Cr and 8% Ni. In mildly corrosive environments — such as rural and urban atmospheres, fresh water, and many organic compounds — 410S performs well. It is not suitable for environments with significant chloride concentrations or strongly reducing acids where 304 or 316 would be required. However, 410S typically costs 25–35% less than 304 due to the absence of nickel, making it an attractive choice where its corrosion resistance is adequate and budget is a consideration.
Which standards cover 06Cr13 seamless tubes and what certificates do you provide?
06Cr13 tubes are certified to ASTM A268 TP410S, EN 10216-5 X6Cr13 (1.4000), EN 10297-2, GB/T 14975, GB/T 14976, and JIS G3463 SUS410S depending on the application. Fushun Steel Tube provides an EN 10204 3.1 inspection certificate as standard with every shipment, documenting the full chemical composition, mechanical properties, hydrostatic or NDT results, and dimensional compliance. EN 10204 3.2 certificates endorsed by an independent inspection agency (Lloyd's Register, Bureau Veritas, SGS, TÜV) are available on request for pressure equipment and critical service applications.
What is the typical delivery time and minimum order quantity for 06Cr13 tubes?
Common sizes in ready stock ship within approximately 7 working days. For custom specifications, the MOQ is 2–3 tons with a production lead time of 25–35 working days. We accept small trial orders below the standard MOQ for project qualification batches — these carry a small-quantity surcharge but allow you to verify product quality before placing volume orders. Contract quantities benefit from negotiated pricing, reserved mill capacity, and phased delivery schedules tailored to project milestones.
Can 410S tubes be used in high-temperature service?
410S provides good scaling resistance in oxidizing atmospheres up to approximately 650 °C (1200 °F) continuous and 750 °C (1380 °F) intermittent service. It is commonly used in moderate-temperature boiler superheaters, reheaters, and economizers, as well as in thermal oxidizer tubes. However, because it is a non-hardenable ferritic grade, it does not retain significant strength at elevated temperatures — above 500 °C the allowable stress drops considerably. For sustained high-temperature pressure service above 550 °C, we recommend considering heat-resistant austenitic grades such as 304H, 321H, or 310S. Consult our technical team to match the right grade to your operating temperature and pressure envelope.
