Utility Lines
Stainless pipe for non-sanitary industrial utility services.
Industrial Stainless Pipe
ASTM A312 Stainless Pipe for Industrial Process Lines.
Industrial stainless pipe specified for utility, process and non-sanitary line requirements where NPS, schedule, material grade and documentation must be clear.
ASTM A312304 / 316LWelded / SeamlessNPS / ScheduleRFQ Ready
Applications
Industrial pipe category separated from sanitary tubing.
ASTM A312 pipe should be treated separately from ASTM A270 sanitary tubing to avoid specification confusion.
Plant Projects
Project-based pipe requirements with schedule and material clarity.
Package Sourcing
Repeat pipe and material list support for contractors.
Sizes & Dimensions
ASTM A312 industrial pipe dimensions.
Available welded (EFW) or seamless construction in Schedule 5S, 10S, 40S and 80S wall thicknesses. Standard lengths 6m or 12m.
| NPS | OD (mm) | Sch 10S WT | Sch 40S WT | Sch 80S WT | Length |
|---|---|---|---|---|---|
| ½" | 21.3 | 2.11 | 2.77 | 3.73 | 6m/12m |
| 1" | 33.4 | 2.77 | 3.38 | 4.55 | 6m/12m |
| 1½" | 48.3 | 2.77 | 3.68 | 5.08 | 6m/12m |
| 2" | 60.3 | 2.77 | 3.91 | 5.54 | 6m/12m |
| 3" | 88.9 | 3.05 | 5.49 | 7.62 | 6m/12m |
| 4" | 114.3 | 3.05 | 6.02 | 8.56 | 6m/12m |
| 6" | 168.3 | 3.40 | 7.11 | 10.97 | 6m/12m |
| 8" | 219.1 | 3.76 | 8.18 | 12.70 | 6m/12m |
Operating Conditions
Pressure-temperature rating for astm a312 industrial pipe.
Pressure rating depends heavily on schedule (wall thickness) and temperature. ASME B31.3 process piping code used for design.
Service Conditions
- Sch 10S @ 38°C: ~30 bar typical
- Sch 40S @ 38°C: ~100 bar typical
- Sch 80S @ 38°C: ~165 bar typical
- Temperature range: –196°C to +800°C
- Creep limit (316L): +525°C
- Hydrotest: 1.5× working pressure
Actual ratings depend on size, material and operating conditions. Confirm via RFQ for project-specific requirements.
Standards & Compliance
Built to recognized sanitary and pressure standards.
Full documentation packages available including MTR, 3.1 certificates, surface roughness reports and pressure test records.
ASTM A312
Stainless Steel Pipe
Seamless/welded austenitic SS pipe specification.
ASME B36.19M
SS Pipe Dimensions
Stainless steel pipe dimensional standard.
ASTM A999
General Requirements
General requirements for SS pipe.
EN 10216-5
European Seamless Pipe
EU standard for seamless stainless tube.
EN 10204 3.1
Material Certification
Standard for material certification.
ASME B31.3
Process Piping
Process piping design code.
NACE MR0175
Sour Service
Materials for sour service environments.
Product Variants
A312 Industrial Pipe configurations for different process roles.
Multiple variants available to match your application requirements. Browse related products for complete process line coverage.
Materials & Standards
Industrial pipe specification language.
Use NPS, schedule, grade, construction and documentation requirements to structure pipe RFQs.
ASTM A312
Common reference for welded and seamless stainless pipe.
304/L / 316/L
Material grade should match the service requirement.
MTR / Heat Traceability
Pipe documentation can be requested in the RFQ.
Technical Overview
Typical ASTM A312 pipe RFQ fields.
Final pipe selection depends on service, pressure, temperature and project specifications.
| Requirement | Typical Information Needed |
|---|---|
| Product Family | ASTM A312 stainless steel pipe |
| Material Grade | 304/L or 316/L by RFQ |
| Size | NPS and schedule requirement |
| Construction | Welded or seamless |
| Length / Quantity | Pipe lengths, total quantity and delivery timing |
| Documentation | MTR/MTC, heat traceability and inspection requirements |
Engineering RFQ
Prepare an ASTM A312 pipe RFQ package.
Include NPS, schedule, grade, welded/seamless preference, quantity, length, documentation and delivery timing.
- Upload drawing or BOM where available
- Include target quantity and lead time
- State material grade and finish expectations
- Include cleaning/service conditions if known
Procurement Support
Built for contractor and plant buyer workflows.
Use this page to prepare a clear sourcing request for repeat components, project packages, secondary supplier comparisons or plant maintenance requirements.
Common Questions
Frequently asked questions about astm a312 industrial pipe.
Engineering and procurement questions we hear most often. For project-specific guidance, send your application details via RFQ.
What is the difference between A312 and A270?
A312 is for industrial/general pipe — chemical, oil & gas, marine, structural. A270 is specifically for sanitary food/dairy applications with mill-polished interior.
A312 has thicker walls and is rated for industrial pressures. A270 is thin-wall sanitary tubing. Different standards for different purposes.
Should I use welded (EFW) or seamless pipe?
Welded (EFW = electric fusion welded) is most common — economical, consistent, suitable for 95% of applications. Seamless costs more but eliminates the welded seam.
For severe service (high pressure, corrosive media, sour service), seamless preferred. For standard industrial applications, EFW with 100% RT is appropriate.
What schedule should I specify?
Schedule selection depends on pressure, temperature and corrosion allowance. ASME B31.3 provides design calculations.
Common: Sch 10S for utility/low pressure, Sch 40S for general process, Sch 80S for high pressure or sour service. Provide design pressure/temperature for proper sizing.
Is NACE compliance available?
Yes — NACE MR0175 compliance for sour service (H2S environments) available. Specify with order — affects material selection and welding procedure.
NACE-compliant pipe has restrictions on hardness and chemistry. Required for oil & gas applications with sour gas. Documentation includes NACE compliance certificate.
What NDE is included as standard?
Standard: hydrostatic test per A312 (1.5× rating). Optional: 100% radiographic test (RT), ultrasonic test (UT), eddy current, dye penetrant.
For critical service (sour, high pressure), specify 100% RT and request reports. For nuclear or aerospace, additional NDE may be required.
Are 304 and 316L interchangeable?
304 is general-purpose stainless. 316L has 2-3% molybdenum providing better corrosion resistance, especially against chlorides.
For chemical processing, marine, or aggressive media, specify 316L. For utility air, water, low-corrosion service, 304 is acceptable and lower cost.
What documentation is provided?
Standard: EN 10204 3.1 MTR with heat numbers, dimensional and visual inspection reports, hydrotest certificate.
For critical service: 100% RT reports, NACE compliance, dimensional inspection per ASME B36.19M, charpy impact test for low-temperature service.
Have an ASTM A312 pipe requirement?
Send NPS, schedule, grade, construction type, length, quantity and documentation requirements.
Engineering Documentation
Technical Datasheet Available
Download the product datasheet for technical specifications, dimensional references, material data, applicable standards and RFQ guidance. Suitable for procurement, engineering review and project documentation.