01
ASTM A312 / A312M
Austenitic stainless steel pipe
Seamless, straight-seam welded and heavily cold-worked welded pipe for high-temperature and general corrosive service.
Stainless Steel — Industrial Product
316L Stainless Steel Seamless Pipe
Austenitic 316L stainless steel seamless pipe supplied to ASTM A312 / ASME SA312 / EN 10216-5 for chemical and welded service applications.
Indicative priceUSD 2,400 - 3,200 / MT
Lead time15-25 working days
01
Overview
316L Stainless Steel Seamless Pipe combines austenitic 316L chemistry with 16–18% chromium, 10–14% nickel and 2–3% molybdenum, plus reduced carbon content for reliable corrosion resistance and welded service compatibility. The low carbon content minimises carbide precipitation during welding, making the pipe suited to chemical processing, petrochemical plants, oil and gas service, pharmaceutical systems and food equipment. Supplied to ASTM A312 / ASME SA312 / EN 10216-5 with mill test certification per EN 10204 3.1, it supports global procurement for critical welded service piping.
Key Characteristics
- 01 Corrosion Resistance Provides improved resistance to corrosive industrial environments.
- 02 Low Carbon Grade Reduced carbon content helps limit the risk of intergranular corrosion after welding and high-temperature exposure.
- 03 Seamless Construction Manufactured without a longitudinal welded seam in the product body.
- 04 High Temperature Capability Suitable for elevated-temperature service within the applicable material limits.
- 05 Good Formability Supports bending, forming and other fabrication processes with suitable processing conditions.
- 06 Traceable Documentation Supplied with documentation supporting material identification, chemical and mechanical traceability.
Typical Applications
- Chemical Processing Process piping, transfer systems and equipment for corrosive and high-purity media.
- Petrochemical Piping, process systems and equipment for refining, petrochemical production and hydrocarbon processing.
- Oil & Gas Service Process piping, flow lines and utility systems across onshore and offshore upstream, midstream and downstream operations.
- Pharmaceutical Hygienic process systems, vessels and manufacturing equipment for pharmaceutical production.
- Food & Beverage Hygienic process piping and equipment for food, beverage, brewing and dairy production.
- Power Generation Piping, tubing and structural components for conventional and combined-cycle power stations.
- Marine Engineering Piping, structural components and equipment exposed to chloride-containing marine environments.
- Welding & Fabrication Metal structures, assemblies and fabricated components for welded construction.
02
Specifications
Numbers in this section correspond to the applicable product standard, formatted for direct use in enquiry and approval documents.
Product specification
- Material
- Austenitic stainless steel
- Grade
- 316L / 1.4404 / TP316L / SUS316L
- UNS designation
- S31603
- Product form
- Seamless pipe
- Manufacturing method
- Hot finished / cold drawn
- Surface / condition
- Annealed & pickled
- End condition
- Plain end; beveled end on request
- Cross-section
- Hollow circular, uniform wall thickness
Supply specifications
- Outside diameter
- 6-630 mm
- Wall thickness
- 0.5-40 mm
- Length
- 3-12 m; custom lengths on request
- Schedule range
- Sch 5S through XXS
- Tolerance
- According to ASTM A312 / ASME B36.19
- Surface finish
- Pickled; bright annealed on request
- Marking
- Standard mill marking; customer marking on request
Final supply is confirmed against the project drawing, purchase agreement and the mill test certificate.
Chemical composition
ElementRequirement
C <= 0.030 %
Si <= 1.00 %
Mn <= 2.00 %
P <= 0.045 %
S <= 0.030 %
Cr 16.0 - 18.0 %
Ni 10.0 - 14.0 %
Mo 2.0 - 3.0 %
N <= 0.10 %
Fe Balance
Reference: ASTM A312 / ASME SA312 TP316L.
Mechanical properties
PropertyRequirement
Tensile strength >= 485 MPa
Yield strength (0.2% offset) >= 170 MPa
Elongation in 50 mm >= 35 %
Hardness <= 217 HB / <= 95 HRB
Reference: ASTM A312 / ASME SA312 TP316L at room temperature.
Physical properties
PropertyTypical Value
Density 8.0 g/cm³
Elastic modulus 193 GPa
Thermal conductivity 16.3 W/m·K at 100°C
Electrical resistivity 0.74 μΩ·m
Specific heat 500 J/kg·K
Melting range 1,400 - 1,450 °C
Thermal expansion 15.9 x 10⁻⁶ /°C
Reference: Typical material values, 316L austenitic stainless steel.
Reference framework
Standards & documentation
The applicable product, dimensional and inspection standards should be confirmed together in the purchase specification.
02
ASME SA312
ASME pressure piping reference
ASME counterpart specification used for pressure piping and pressure vessel applications.
03
ASME B36.19
Stainless steel pipe dimensions
Dimensional reference for nominal pipe size, outside diameter and stainless steel schedules.
04
EN 10216-5
Seamless tubes for pressure purposes
European reference covering manufacture, delivery condition, mechanical and chemical requirements.
05
JIS G3459
Stainless steel pipes for piping
Japanese reference for corrosion-resistant and elevated-temperature piping applications.
06
EN 10204
Inspection documents
Defines inspection document types such as 3.1 and 3.2 for metallic product delivery.
03
Capability
From custom dimensions and precision sizing to heat treatment, surface finishing and product-specific processing, Wayland coordinates supply solutions tailored to your requirements.
Cutting
Cut-to-length and custom cutting according to order requirements.
Custom Dimensions
Non-standard dimensions, tolerances and dimensional combinations subject to product and mill capability.
Precision Sizing
Precision sizing and dimensional control for tighter tolerance requirements.
Cold Working
Cold drawing, cold sizing and other cold-working processes where required.
Heat Treatment
Heat treatment according to material, specification and applicable standard.
Surface Finishing
Surface treatment and finishing according to product, specification and application requirements.
Forming
Bending, forming and other shape modification according to drawings or order requirements.
End Preparation
Beveling, threading, chamfering and other end preparation according to product requirements.
Customization
Custom dimensions, lengths, surface conditions, end preparations and inspection requirements can be supplied according to project specifications. Final capability is confirmed per enquiry based on grade, size range and applicable standard.
04
Quality
Inspection and documentation procedures are coordinated to meet the requirements of the applicable product standard and the project specification.
- Dimensional inspection Geometry, dimensions and tolerances against the applicable standard
- Visual and surface inspection Surface condition, marking and overall appearance
Documents
- Inspection Report
- Chemical analysis Per heat, against the applicable standard
- Mechanical testing Tensile, yield, elongation and hardness
- Non-destructive testing UT, eddy-current, hydrostatic or other NDT as applicable
- Positive material identification PMI for alloy verification when required
Documents
- Mill Test Certificate (MTC)
- Heat number traceability Heat number carried through MTC and product marking
- Third-party inspection coordination SGS / BV / TÜV on request
Documents
- Third-Party Inspection Report
- EN 10204 documentation 3.1 MTC standard; 3.2 on request
Documents
- EN 10204 3.1 Mill Test Certificate
- EN 10204 3.2 Inspection Certificate
- Certificate of Origin
05
Selection
A well-prepared specification is the most efficient defence against clarification cycles.
- 01 Select material & grade
Choose the material grade according to service conditions, performance requirements and applicable standards.
- 02 Define size & supply condition
Specify the required dimensions, surface condition, heat-treatment condition and delivery requirements.
- 03 Confirm standard & requirements
State the applicable product standard, dimensional standard and governing project specification.
- 04 Define inspection & documentation
Confirm inspection, testing, certification and documentation requirements before order placement.
Example procurement specification
A complete specification suitable for enquiry, covering product, technical requirements, certification and delivery terms.
- Product
- 316L Stainless Steel Seamless Pipe
- Grade
- 316L
- Standard
- ASTM A312
- Dimensions
- OD 60.3 mm × WT 3.91 mm × Length 6000 mm (NPS 2, Sch 40S)
- Condition
- Solution Annealed & Pickled; Plain Ends
- Certification
- EN 10204 3.1 Mill Test Certificate
- Quantity
- 20 Metric Tons
- Packaging
- Seaworthy Export Packing
- Incoterm
- CIF Hamburg
06
Logistics
From mill dispatch to destination port, each stage is coordinated with the nominated forwarder and documented against the purchase specification.
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Packaging
Export-suitable packaging with surface and edge protection.
Bundled, wrapped or crated according to product form and transport mode. Outer surface protected with weather-resistant material; ends and edges shielded against transit damage.
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Loading
FCL container for standard sizes; break bulk for oversized cargo.
Container loading via nominated forwarder. LCL and dimensions outside container allowance coordinated against the mill dispatch schedule.
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Documentation
Commercial invoice, packing list and certificate of origin.
Mill documentation travels with the shipment. EN 10204 3.1 / 3.2 certificates and third-party inspection reports provided as per purchase specification.
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Shipment
Sea freight as standard; alternative routes on request.
FCL / LCL container shipment or break bulk for oversized dimensions. Logistics coordinated through the nominated forwarder.
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Delivery
FOB · CFR · CIF · FCA · EXW arrangements available.
Incoterm 2020. Port of loading: Shanghai / Ningbo / Shenzhen. Final destination and terms confirmed per enquiry.
07
FAQ
Most enquiries reduce to a small set of recurring technical questions.
01 Can 316L seamless pipe be supplied in custom lengths?
Yes. Standard supply length is 3 - 12 m. Cut-to-length supply according to project specification can be coordinated. Final feasibility depends on OD / WT combination and applicable standard.
02 What certificates can be provided?
EN 10204 3.1 Mill Test Certificate is provided as standard. EN 10204 3.2 (third-party witnessed), PMI reports and third-party inspection certificates (SGS, BV, TÜV) can be coordinated upon request.
03 What is the typical minimum order quantity (MOQ)?
The typical MOQ is 1 metric ton. For standard catalogue dimensions, smaller quantities can be considered based on available stock. Final MOQ is confirmed per enquiry.
04 Can the pipe be supplied according to EN or JIS standards?
Yes. In addition to ASTM A312 / ASME SA312, 316L seamless pipe can be supplied according to EN 10216-5 (European) and JIS G3459 (Japanese) where mill capability and project specification allow.
05 What information is required for quotation?
To obtain a quotation, please provide grade, standard, OD x WT x length, quantity, delivery condition, certificate type, destination and preferred Incoterm.