904L vs 316L vs duplex

Choose	When	Watch-outs
904L	High-alloy austenitic for severe corrosives	Costly vs 316L — justify by media
316L	Everyday Mo stainless	Lower PREN than 904L
Duplex 2205	Strength + chlorides	Different metallurgy / welding

Copy-paste RFQ

ASTM A312 / ASME SA312 TP904L seamless pipe NPS/OD: ____ Sch/wall: ____ Length: ____ Qty: ____ Ends: PE/BE MTC: 3.1/3.2 Extras: ____ Destination: ____

Email sales@savoypipinginc.com with destination and any IBR / NACE / TPI notes.

ASTM A312 TP904L Stainless Steel Seamless Pipe

ASME SA312 · UNS N08904 · high Ni-Cr-Mo-Cu superaustenitic (≈ 20Cr-25Ni-4.5Mo-Cu)

Savoy Piping Inc. supplies ASTM A312 TP904L seamless pipe — a superaustenitic grade bridging 316L and nickel alloys for strong resistance to reducing acids and chlorides.

Grade hub · A312 Seamless · A312 Welded · A213 · A269 · A358 EFW · SS hub · A312 Welded twin

Also see: Stainless steel pipe & tube hub · Seamless pipe · Buttweld fittings · Flanges.

What is A312 TP904L?

904L pipe to A312/SA312 for general corrosive service. Strength guide: per SA-312 / PO for 904L — confirm edition.

Typical applications

• Sulphuric / phosphoric acid piping
• Seawater and chloride process lines
• Pulp & paper and chemical scrubber systems

Selection guidance

Use 904L when 316L/317L are inadequate but full nickel alloy is not justified. Compare with 254 SMO / 6Mo and duplex/super duplex on PREN and cost.

ASTM A312 TP904L Stainless Steel Seamless Pipes Range

Chemical Composition of ASTM A312 TP904L Stainless Steel Seamless Pipes

The chemical composition of grade 904L Stainless Steel is outlined in the following table

Mechanical Properties of ASTM A312 TP904L Stainless Steel Seamless Pipes

The Mechanical Properties of grade 904L Stainless Steel are displayed in the following table.

ASTM A312 TP904L Stainless Steel Seamless Pipes Physical Properties

Physical properties of 904L grade stainless steel in the annealed condition

Specification Comparison For Grade ASTM A312 TP904L Stainless Steel Seamless Pipes

Grade specifications for 904L grade stainless steel

ASTM A312 TP904L Stainless Steel Seamless Pipes Apllicantion

The grade 904L steel can be made into plates, sheets, and coils to be used in the following:

• Chemical Processing
• Food Processing – equipment and storage
• Petroleum Refining – fluid cantalytic cracking units, polythionic acid service
• Pharmaceutical Production
• Waste Heat Recovery – recuperators
• Wiring in electrostatic precipitators
• Oil refinery components
• Seawater cooling devices
• Gas scrubbing plants
• Pulp and paper processing industries
• Acetic, phosphoric and sulphuric acid processing plants

ASTM A312 TP904L Stainless Steel Seamless Pipes Nominal Bore Sizes

• 1/2" NB in Thickness Schedule 10, Schedule 40, Schedule 80, Schedule 160, Schedule XXS
• 3/4" NB in Thickness Schedule 10, Schedule 40, Schedule 80, Schedule 160, Schedule XXS
• 1" NB in Thickness Schedule 10, Schedule 40, Schedule 80, Schedule 160, Schedule XXS
• 1-1/4" NB in Thickness Schedule 10, Schedule 40, Schedule 80, Schedule 160, Schedule XXS
• 1-1/2" NB in Thickness Schedule 10, Schedule 40, Schedule 80, Schedule 160, Schedule XXS
• 2" NB in Thickness Schedule 10, Schedule 40, Schedule 80, Schedule 160, Schedule XXS
• 2-1/2" NB in Thickness Schedule 10, Schedule 40, Schedule 80, Schedule 160, Schedule XXS
• 3" NB in Thickness Schedule 10, Schedule 40, Schedule 80, Schedule 160, Schedule XXS
• 3-1/2" NB in Thickness Schedule 10, Schedule 40, Schedule 80, Schedule 160, Schedule XXS
• 4" NB in Thickness Schedule 10, Schedule 40, Schedule 80, Schedule 160, Schedule XXS
• 5" NB in Thickness Schedule 10, Schedule 40, Schedule 80, Schedule 160, Schedule XXS
• 6" NB in Thickness Schedule 10, Schedule 40, Schedule 80, Schedule 160, Schedule XXS
• 8" NB in ThicknessSchedule 10, Schedule 40, Schedule 80, Schedule 160, Schedule XXS
• 10" NB in Thickness Schedule 10, Schedule 40, Schedule 80, Schedule 160, Schedule XXS
• 12" NB in ThicknessSchedule 10, Schedule 40, Schedule 80, Schedule 160, Schedule XXS
• 14" NB in Thickness Schedule 10, Schedule 40, Schedule 80, Schedule 160, Schedule XXS
• 16" NB in Thickness Schedule 10, Schedule 40, Schedule 80, Schedule 160, Schedule XXS
• 18" NB in Thickness Schedule 10, Schedule 40, Schedule 80, Schedule 160, Schedule XXS

Frequently asked questions — ASTM A312 TP904L Seamless Pipe

What is ASTM A312 TP904L?

A312 TP904L is austenitic stainless seamless pipe, UNS N08904, for corrosive and high-temperature service as specified.

Seamless or welded?

This page is the seamless product form. Welded/ERW is listed on the twin page when the PO allows.

904L chemistry?

high Ni-Cr-Mo-Cu superaustenitic (≈ 20Cr-25Ni-4.5Mo-Cu)

Documents?

EN 10204 3.1 MTC standard; 3.2 and TPI on request.

Export & documentation

We supply this product for domestic and export projects with MTC (EN 10204 3.1 standard; 3.2 / TPI on request). Include destination, Incoterms and inspection needs on the RFQ.