Our Stainless Steel Pipe Range
MetalFromTurkey supplies stainless steel pipe as a grade-structured product family. Buyers can send one RFQ covering grade, standard, size, schedule, finish, quantity, inspection scope and delivery term; our team checks suitable Turkish supply options across welded and seamless production routes.
304 / 304L Stainless Steel Pipe
304 stainless steel pipe is the most widely used grade for indoor food-grade, architectural and general process service. Supply covers welded (ASTM A312, ASTM A358, EN 10217-7) and seamless (ASTM A312, ASTM A213, EN 10216-5) production routes, with 304L preferred when welded fabrication is expected. Many inquiries can be quoted as 304/304L dual-certified material.
See the dedicated 304 stainless steel pipe page for TP304/TP304L specifications, size chart and RFQ details.
View 304 stainless steel pipe details ->316 / 316L Stainless Steel Pipe
316L stainless steel pipe uses a lower carbon version of 316 to reduce sensitization risk in weld zones. It is specified for marine, pharmaceutical, chemical process and petrochemical service where chloride exposure or cleaning chemicals make 304 less suitable.
See full 316L specifications, size chart and grade comparison on the dedicated 316L stainless steel pipe page. Where chloride exposure combines with pressure, temperature or stress-corrosion-cracking risk, duplex 2205 can be the better technical route.
View 316L stainless steel pipe details ->Stainless Steel Sheet & Plate (Sister Brand)
Looking for flat products instead of pipe? If your project requires stainless steel in flat form, our sister brand supplies stainless steel sheet and plate — including 304/304L and 316/316L grades — from certified Turkish mills.
Visit SteelFromTurkey's stainless steel sheet and plate page for grades, thicknesses and RFQ details.
View stainless steel sheet & plate ->Duplex 2205 & Specialty Grades (321, 347, 2507)
Duplex 2205 pipe combines higher strength with better chloride and stress-corrosion-cracking resistance than common 300-series grades. Super duplex 2507 is available on project basis for severe chloride and offshore service.
Titanium-stabilized 321 and niobium-stabilized 347 cover elevated-temperature and thermal-cycling requirements, while 317L, 904L and 2304 are quoted on project basis. Chemistry and use-case details are summarized in the grades table further down this page.
Cold Drawn Precision Stainless Steel Tubes
Cold drawn precision stainless steel tubes are used where dimensional tolerance, surface finish and repeatability matter more than simple schedule-pipe availability. Typical applications include instrumentation, heat exchangers, food equipment, mechanical assemblies, medical-adjacent equipment and OEM tube components.
Supply can include round, square, rectangular and custom profile options where the production route supports them. Specify OD, wall thickness, tolerance, surface finish, inside cleaning requirement and packaging method when requesting pricing.
304 vs 316 Stainless Steel Pipe: Which Grade Do You Need?
304 stainless steel pipe is usually sufficient for indoor food-grade, architectural and general process service. 316 and 316L add molybdenum, improving chloride pitting resistance for marine, coastal, chemical and pharmaceutical environments.
304 vs 316 Stainless Steel Pipe: Which Grade Do You Need?: Decision Factor, 304 / 304L Stainless Steel Pipe, 316 / 316L Stainless Steel Pipe.
| Decision Factor | 304 / 304L Stainless Steel Pipe | 316 / 316L Stainless Steel Pipe |
|---|---|---|
| Main alloy difference | Chromium-nickel austenitic stainless, no intentional molybdenum addition | Chromium-nickel-molybdenum austenitic stainless |
| Corrosion profile | Good general corrosion resistance in clean indoor and mild outdoor environments | Better pitting resistance in chloride-bearing and coastal environments |
| Welded fabrication | 304L helps reduce sensitization risk after welding | 316L is preferred when welding plus chloride exposure are both expected |
| Typical cost position | Lower alloy cost than 316L | Typically higher because molybdenum and nickel content increase alloy cost |
| Common use cases | Food equipment, architectural pipe, general utility lines | Marine, pharma, petrochemical, chemical process and coastal service |
For indoor service with controlled water chemistry, 304/304L often gives the best cost-performance balance. See the dedicated 304 stainless steel pipe page for TP304/TP304L specifications, size chart and RFQ details. Specify 316/316L when chloride exposure, cleaning chemicals, salt air or process media increase pitting risk. For severe chloride plus pressure service, duplex 2205 may be the better technical choice.
316 / 316L Stainless Steel Pipe for Marine & Process Service
316L stainless steel pipe uses a lower carbon version of 316 to reduce sensitization risk in weld zones. It is specified for marine, pharmaceutical, chemical process and petrochemical service where chloride exposure or cleaning chemicals make 304 less suitable.
For 316L specifications, size charts and grade comparisons, use the dedicated 316L stainless steel pipe page. Duplex 2205 can be considered where chloride exposure combines with pressure, temperature or stress-corrosion-cracking risk.
Welded vs Seamless Stainless Steel Pipe: Which Should You Specify?
Every grade in our range can be reviewed for welded or seamless supply. Welded stainless steel pipe is the cost-effective choice for most process, food-grade, architectural and industrial piping in small to medium wall thicknesses. Seamless stainless steel pipe is selected where the specification requires seamless construction, higher pressure class, thermal cycling resistance or critical corrosion service.
Welded vs Seamless Stainless Steel Pipe: Which Should You Specify?: Decision Factor, Welded Stainless Steel Pipe, Seamless Stainless Steel Pipe.
| Decision Factor | Welded Stainless Steel Pipe | Seamless Stainless Steel Pipe |
|---|---|---|
| Production route | Formed and welded from stainless strip or plate (TIG/GTAW, plasma) | Produced without a weld seam (hot finished or cold drawn) |
| Common standards | ASTM A312, ASTM A358, EN 10217-7 | ASTM A312, ASTM A213, EN 10216-5 |
| Typical service | Process, food-grade, architectural and industrial piping | Higher pressure class, thermal cycling, critical corrosion service |
| Typical cost position | Lower in comparable sizes | Typically higher because of production route and yield |
| RFQ checklist | OD, schedule, weld test scope, surface condition, MTC | Grade, OD, wall thickness or schedule, length, end finish, inspection scope |
A common procurement error is mixing a welded-only or seamless-only standard reference with the wrong production route. The standards matrix further down this page gives a first-pass check.
For carbon and alloy seamless requirements outside the stainless range, see the carbon and alloy seamless pipe range.
Stainless Steel Pipe Size & Schedule Chart (NPS / DN)
Stainless steel pipe is commonly specified by NPS and schedule under ASME B36.19. NPS is a nominal designation; the outside diameter stays fixed for a given NPS while the wall thickness changes by schedule.
Stainless Steel Pipe Size & Schedule Chart (NPS / DN): NPS, DN, OD (mm), Sch 5S WT (mm), Sch 10S WT (mm), Sch 40S WT (mm), Sch 80S WT (mm).
| NPS | DN | OD (mm) | Sch 5S WT (mm) | Sch 10S WT (mm) | Sch 40S WT (mm) | Sch 80S WT (mm) |
|---|---|---|---|---|---|---|
| 1/2" | 15 | 21.3 | 1.65 | 2.11 | 2.77 | 3.73 |
| 1" | 25 | 33.4 | 1.65 | 2.77 | 3.38 | 4.55 |
| 2" | 50 | 60.3 | 1.65 | 2.77 | 3.91 | 5.54 |
| 4" | 100 | 114.3 | 2.11 | 3.05 | 6.02 | 8.56 |
| 8" | 200 | 219.1 | 2.77 | 3.76 | 8.18 | 12.70 |
| 12" | 300 | 323.8 | 3.96 | 4.57 | 9.53 | 17.48 |
Larger sizes, non-standard wall thicknesses and project-specific lengths can be quoted when the standard, grade and inspection scope are clear. Send the NPS or OD, wall thickness, length, quantity and destination for availability review.
Available Cross Sections
Stainless pipe and tube requirements are not limited to round process pipe. MetalFromTurkey can source round, square, rectangular and selected special-profile stainless tubes depending on grade, dimension, wall thickness and tolerance requirement.
Round pipe is the default format for pressure piping, process lines and schedule-based specifications. Square and rectangular stainless tubes are common in food equipment frames, handrails, machinery frames and OEM assemblies. Precision tubes are specified for tighter tolerance, smoother finish or repeatable downstream machining.
For non-standard sections, provide drawings to prevent quotation delays and avoid near-size substitutions.
Why Source Stainless Steel Pipes from Turkey?
Turkey gives stainless steel pipe buyers a practical balance of regional logistics, industrial metal processing capacity and export documentation discipline. For European, MENA and nearby project destinations, Turkish supply can reduce lead time compared with distant-origin sourcing while keeping documentation and inspection scope clear.
MetalFromTurkey works as a supplier and exporter, not as a public mill directory. Buyers send one specification; our team checks which certified Turkish mills can match the grade, standard, quantity and delivery target. We then return a benchmarked quotation with documentation scope, inspection options and logistics terms.
Typical advantages include:
- Multi-mill comparison for price, lead time and capability.
- EN 10204 3.1 MTC documentation for qualified industrial orders.
- FOB, CFR, CIF and project-specific delivery coordination.
- Third-party inspection coordination when required.
- MOQ guidance before the RFQ becomes a time-consuming back-and-forth.
Cost advantages depend on grade, nickel and molybdenum markets, wall thickness, finish, quantity and delivery term. When a project shows a 15-30% sourcing advantage compared with a Western European option, treat that as project-dependent, not as a fixed guarantee.
Stainless Steel Grades We Supply
Stainless Steel Grades We Supply: Grade, EN / UNS Reference, Best-Fit Use Case, Notes.
| Grade | EN / UNS Reference | Best-Fit Use Case | Notes |
|---|---|---|---|
| 304 / 304L | 1.4301 / 1.4307, UNS S30400 / S30403 | Food equipment, indoor process lines, architecture | 304L preferred for welded fabrication |
| 316 / 316L | 1.4401 / 1.4404, UNS S31600 / S31603 | Marine, pharma, chemical process, coastal service | Molybdenum improves chloride pitting resistance |
| 321 | 1.4541, UNS S32100 | Elevated-temperature welded service | Titanium-stabilized grade |
| 347 | 1.4550, UNS S34700 | Thermal cycling, selected high-temperature service | Niobium-stabilized grade |
| Duplex 2205 | 1.4462, UNS S32205 / S31803 | Chloride service, higher strength, selected process lines | Better SCC resistance than common 300-series grades |
| Super Duplex 2507 | 1.4410, UNS S32750 | Severe chloride and offshore service | Available on project basis |
| 317L / 904L / 2304 | Project-specific | Chemical and special corrosion service | Available on project basis |
Chemical Composition Overview (Weight %)
Composition limits vary by standard and product form. The table below is a buyer-facing orientation only; the governing standard and MTC control the final order.
Chemical Composition Overview (Weight %): Grade, C Max, Cr, Ni, Mo, Practical Meaning.
| Grade | C Max | Cr | Ni | Mo | Practical Meaning |
|---|---|---|---|---|---|
| 304 | 0.08 | 18.0-20.0 | 8.0-10.5 | - | General austenitic stainless pipe |
| 304L | 0.03 | 18.0-20.0 | 8.0-12.0 | - | Lower carbon for welded fabrication |
| 316 | 0.08 | 16.0-18.0 | 10.0-14.0 | 2.0-3.0 | Better chloride pitting resistance than 304 |
| 316L | 0.03 | 16.0-18.0 | 10.0-14.0 | 2.0-3.0 | Preferred for welded chloride-service applications |
| 2205 | 0.03 | 22.0-23.0 | 4.5-6.5 | 3.0-3.5 | Duplex structure, higher strength, better SCC resistance |
Standards & Certifications
Stainless steel pipe specifications should match product form. A common procurement error is mixing a seamless-only or welded-only EN reference with the wrong production route. Use the standard matrix below as a first-pass check before sending the RFQ.
Standards & Certifications: Product Form, Common Grades, ASTM / ASME Route, EN Route, Documentation.
| Product Form | Common Grades | ASTM / ASME Route | EN Route | Documentation |
|---|---|---|---|---|
| Welded stainless pipe | 304/304L, 316/316L, 321, 347 | ASTM A312, ASTM A358, ASME B36.19 dimensions | EN 10217-7 | EN 10204 3.1 or 3.2 when required |
| Seamless stainless pipe | 304/304L, 316/316L, 321, duplex | ASTM A312, ASTM A213, ASME B36.19 dimensions | EN 10216-5 | MTC, hydrotest and NDT scope per order |
| Precision stainless tube | 304, 316, 316Ti and project grades | ASTM A269 or project standard | EN 10305 where applicable | Dimensional report, surface and tolerance checks |
| Duplex stainless pipe | 2205, 2507 | ASTM A790 / A928 depending on form | EN route by project specification | PMI, NDT and corrosion-test options by project |
Typical documentation packages can include ISO 9001 evidence, EN 10204 3.1 MTC, PMI, hydrostatic test, UT/RT/ET where applicable, dimensional report, surface inspection, packing list and certificate of origin.
Download Stainless Steel Pipe Datasheet (PDF) →Industries We Serve
Food and beverage equipment: 304/304L and 316L stainless tubes for hygienic process lines, frames, CIP systems and equipment assemblies.
Pharmaceutical and chemical process: 316L, 904L and duplex options for lines exposed to cleaning chemicals, chloride-bearing media or controlled process environments.
Marine and coastal projects: 316L and duplex 2205 options for salt-air, splash-zone and seawater-adjacent environments.
Petrochemical and industrial utilities: Seamless or welded stainless pipe for corrosion-critical lines, heat exchanger service and plant maintenance requirements.
Architectural and OEM fabrication: Stainless round, square and rectangular tubes for handrails, frames, visible structures, furniture, machinery and custom assemblies.
Distribution and PVF supply: Mixed-grade pipe and tube packages for repeatable sourcing, export documentation and shipment consolidation.
Pricing & RFQ Process (From Inquiry to Delivery)
Stainless steel pipe price is driven by grade, nickel and molybdenum content, production form, size, schedule, surface finish, inspection scope, quantity and delivery term. 316L is usually more expensive than 304 because molybdenum and higher nickel content increase alloy cost. Seamless pipe is typically priced above welded pipe in comparable sizes because of production route and yield.
MetalFromTurkey provides project-specific quotations benchmarked across our Turkish mill network. We do not publish catalog pricing because stainless pipe cost changes with alloy markets, size mix, certification scope and shipment timing.
To Receive an Accurate Stainless Steel Pipe Quotation, Include:
- Grade: 304/304L, 316/316L, 321, 347, duplex 2205 or another specified grade.
- Standard: ASTM A312, A213, A269, A790, EN 10216-5, EN 10217-7 or project standard.
- Size: NPS, DN, OD, wall thickness, schedule and length.
- Product form: welded, seamless, precision tube, square or rectangular tube.
- Quantity: metric tons, meters or pieces per grade and size.
- Finish: annealed, pickled, passivated, polished, beveled, plain end or threaded.
- Documentation: EN 10204 3.1 / 3.2, PMI, NDT, hydrotest, third-party inspection.
- Delivery: FOB Istanbul, Gemlik, Izmir or Mersin port; CFR/CIF destination port or another project delivery term.
How to Order Stainless Steel Pipe from MetalFromTurkey
Typical process from inquiry to delivery. Standard MOQ is usually 5 tons for carbon steel pipe lines; stainless requirements may be reviewed by grade, size mix and shipment plan.
Step 01 — RFQ Received. Submit grade, standard, size, quantity, finish, documentation and delivery term via our online quote form.
Step 02 — Specification Review. Our team checks the request against welded, seamless or precision tube requirements and the correct standard route.
Step 03 — Supply-Route Selection. Suitable Turkish mills are checked for grade, standard, quantity and delivery target.
Step 04 — Quotation. A benchmarked quotation is returned with documentation scope, inspection options and logistics terms.
Step 05 — Order Confirmation.
Step 06 — Production or Stock Allocation.
Step 07 — Inspection. ISO 9001 evidence, EN 10204 3.1 MTC, PMI, hydrostatic test, UT/RT/ET where applicable, dimensional report and surface inspection.
Step 08 — Export Documentation. Packing list and certificate of origin are prepared alongside the MTC package.
Step 09 — Shipment. FOB Istanbul, Gemlik, Izmir or Mersin port; CFR/CIF destination port or another project delivery term, depending on Incoterms and project delivery scope.
Request a Quote
Prompt Response
Tell us your grade, standard, size and quantity and our team will respond with a detailed proforma invoice promptly — including pricing, lead time and delivery options.
Common Questions
What is the difference between 304 and 316 stainless steel pipe?
304 stainless steel pipe is a chromium-nickel austenitic grade used for general corrosion resistance. 316 stainless steel pipe adds molybdenum, which improves resistance to chloride pitting. Use 304/304L for indoor food-grade, architectural and mild process service; specify 316/316L for marine, coastal, pharmaceutical and chloride-bearing environments.
What sizes and schedules do you stock?
Stainless pipe is commonly supplied from NPS 1/2" to NPS 12" in Sch 5S, 10S, 40S and 80S, with larger sizes available on project basis. Availability depends on grade, welded or seamless form, wall thickness, quantity and inspection scope. Send the exact NPS or OD, wall thickness, length and grade for confirmation.
What is the difference between welded and seamless stainless steel pipe?
Welded stainless steel pipe is formed and welded from stainless strip or plate. It is cost-effective for many process and industrial applications. Seamless stainless steel pipe is produced without a weld seam and is preferred when the project specification requires seamless construction, higher pressure class, thermal cycling resistance or critical corrosion service.
Is stainless steel good for pipes?
Stainless steel is a strong choice for pipes when corrosion resistance, cleanability, temperature resistance or appearance matter. The correct grade depends on the medium and environment. 304 works in many indoor and mild-service applications; 316L or duplex grades are better for chloride, marine and more aggressive process conditions.
How expensive is stainless steel pipe?
Stainless steel pipe is priced by grade, alloy market, welded or seamless form, size, schedule, finish, inspection scope and delivery term. 316L generally costs more than 304 because it contains molybdenum and more nickel. MetalFromTurkey quotes project-specific pricing after checking the real specification and quantity.
Can you provide EN 10204 3.1 MTCs?
Yes. EN 10204 3.1 MTCs are available for qualified stainless steel pipe orders. Depending on the project, the documentation package can also include PMI, hydrostatic test records, NDT reports, dimensional inspection, certificate of origin, packing list and third-party inspection reports.
Do you supply stainless steel tube as well as pipe?
Yes. MetalFromTurkey supplies stainless steel pipe and stainless steel tube, including welded pipe, seamless pipe, precision round tube, square tube and rectangular tube. For tube requirements, provide OD, wall thickness, tolerance, surface finish and end-use details so the correct product route is quoted.
Can stainless steel pipe fittings be supplied with the pipe order?
Stainless steel pipe fittings can be quoted with the pipe package when the project requires elbows, tees, reducers, flanges or related PVF items. Fitting availability depends on grade, standard, pressure class, connection type and quantity. Include the fitting list with the pipe RFQ for consolidated review.
What minimum order quantity applies?
MOQ depends on grade, size range, supply route and whether the requirement can be consolidated with existing production. For project-scale industrial orders, send the full size list and destination; our team will confirm whether the quantity is workable and whether mixed grades or sizes can ship together.
Which markets do you serve?
MetalFromTurkey supports stainless steel pipe buyers in Europe, the Balkans, the Caucasus, MENA and selected global markets. Export terms can include FOB Turkish port, CFR, CIF and project-specific logistics support depending on destination, Incoterms and documentation requirements.