Stainless Steel 904L Pipe | SS 904L Seamless Pipe Low Price

Q: What decides the WNR 1.4539 EFW Pipe price per kg?

Nickel and molybdenum market prices on the quote date. Seamless vs welded route, NPS and schedule. Quantity, end finish and certification level.

Q: Is ASME SA312 TP904L Heat Exchanger Tube worth the extra cost over 316L?

Yes for sulfuric or phosphoric acid and high-chloride duty. Mo 4.0-5.0% vs 2.00-3.00%, plus 1.00-2.00% copper. For mild water or food lines, 316L is usually enough.

Q: Do ASTM B677 904L Tube and ASTM B673 904L Thin Wall Pipe still apply?

No, current editions no longer list UNS N08904. 904L pipe now falls under ASTM A312 (TP904L). We quote A312 against legacy B677 / B673 enquiries.

Q: Is SS 9041 the same as AISI 904L Round Pipe?

Yes, "9041" is a common misreading of 904L. The last character is the letter L, meaning low carbon. Order it as ASTM A312 TP904L / UNS N08904.

Q: Which certificates and tests come with each EN X1NiCrMoCu25-20-5 Heat Exchanger Tube order?

EN 10204 3.1 MTC as standard, 3.2 on request. Hydrostatic or eddy-current test on every length. PMI, IGC and SGS / BV / TUV witness when ordered.

Q: How fast can ASTM A312 TP904L Cold Drawn Tubing reach my site?

Stock sizes dispatch in 24-48 hours. Sea freight about 12-18 days to Gulf and African ports. Air freight about 3-5 days.

SS 904L Pipe Strengths Buyers Rely On

Get 904L Rate Card

Since 2007 in Mumbai

19+ years of handling high nickel TP904L orders.

Heat-Traceable Lengths

Pipe heat number always matches your MTC heat.

Quick Truck-Out

Stock sizes cover Sch 10S 40S and 80S. They are loaded and dispatched within two days.

Made to Your Line List

We cut and bevel or thread each length. Work follows exactly what your isometric shows.

TP904L Pipe Core Data Card

Grade / UNSTP904L / UNS N08904

StandardASTM A312 / ASME SA312

OD Range21.3 – 609.6 mm

NB Size Range1/2″ – 24″ NB

Wall ThicknessSch 10S, 40S and 80S

TemperSolution annealed (1100°C min) and pickled

Alloying ElementsNi-Cr-Mo-Cu, 0.020% C max

FormsSeamless, Welded, ERW, EFW

MTCEN 10204 3.1 / 3.2

TPISGS / BV / TUV on request

LogisticsEx-Mumbai, sea via Nhava Sheva or air

Delivery TimeEx-stock dispatch in 24-48 hours; mill-order lead time confirmed on quote

SS 904L Seamless Pipe Supplier in India in Sch 10S, 40S And 80S Sizes

We stock ASTM A312 TP904L pipe in Mumbai. This super austenitic UNS N08904 material outperforms 316L. High nickel molybdenum and copper additions protect against severe acids. It handles aggressive sulfuric and phosphoric acid duty with ease. It stops pitting and thinning seen in standard 300 series. We supply Sch 10S 40S and 80S wall schedules. Our range covers seamless welded ERW and EFW types. We also stock small bore tubing for heat exchangers. Every single pipe length carries a clear heat number mark. Quotes depend on your exact NPS schedule and required length.

904L Stainless Steel Pipe Specification

These 904L spec points go beyond the snapshot. They cover sizing testing ends marking and compliance.

UNS N08904 Seamless Pipe Dimensional Standard

ASME B36.19M (OD and schedule wall)

ASTM A312 TP904L Seamless Pipe Lengths

Random 15-24 ft (NPS 8 and below), cut lengths to order

JIS SUS890L Round Pipe End Finish

Plain, bevelled, threaded (Sch 40S / 80S only)

WNR 1.4539 ERW Pipe Hydro / NDE Test

Hydrostatic or eddy-current test on every length

ASME SA312 TP904L Welded Pipe Mechanical Tests

Tension test per lot + flattening test

ASTM B673 904L EFW Pipe Optional Tests

IGC (ASTM A262 Pr. E), PMI, weld radiography

JIS SUS890L Tube Pitting Index

PREN approx. 34-35 (typical mill value)

UNS N08904 Cold Drawn Tubing Sour Service Status

Listed in NACE MR0175 / ISO 15156-3, solution annealed

AISI 904L Round Pipe Density

7.95 g/cm³ (basis of our weight chart)

ASTM B677 904L Thin Wall Pipe Design Codes

ASME B31.3 / B31.1 piping; ASME stress values to 371°C

EN X1NiCrMoCu25-20-5 Welded Pipe Buyer Compliance

PED 2014/68/EU, IBR, GCC documents on request

ASTM A312 TP904L ERW Pipe Marking

Spec, grade, NPS, schedule, heat no., SML/WLD, ET/UT

ASME SA312 TP904L Seamless Pipe Size Chart

NPS and OD sizes per ASME B36.19M. Sch 5S and 10S walls up to 24 inch.

NPS	DN	OD (inch)	OD (mm)	Sch 5S WT (mm)	Sch 10S WT (mm)
1/2″	15	0.840	21.34	1.65	2.11
3/4″	20	1.050	26.67	1.65	2.11
1″	25	1.315	33.40	1.65	2.77
1 1/4″	32	1.660	42.16	1.65	2.77
1 1/2″	40	1.900	48.26	1.65	2.77
2″	50	2.375	60.33	1.65	2.77
2 1/2″	65	2.875	73.03	2.11	3.05
3″	80	3.500	88.90	2.11	3.05
4″	100	4.500	114.30	2.11	3.05
5″	125	5.563	141.30	2.77	3.40
6″	150	6.625	168.28	2.77	3.40
8″	200	8.625	219.08	2.77	3.76
10″	250	10.750	273.05	3.40	4.19
12″	300	12.750	323.85	3.96	4.57
14″	350	14.000	355.60	3.96	4.78
16″	400	16.000	406.40	4.19	4.78
18″	450	18.000	457.20	4.19	4.78
20″	500	20.000	508.00	4.78	5.54
22″	550	22.000	558.80	4.78	5.54
24″	600	24.000	609.60	5.54	6.35

904L Stainless Steel Pipe Types

Nine supply routes from a 904L Stainless Steel Pipe manufacturer in India. Match the form to pressure bore and budget.

ASTM A312 TP904L Seamless Pipe

No weld at any production stage
Hot or cold finished
First choice for high-pressure lines

SS 904L Welded Pipe

Automatic weld, no filler metal
Single seam up to NPS 14
Lower cost than seamless

UNS N08904 ERW Pipe

Formed from annealed coil
Even wall around the bore
Suits Sch 10S utility runs

TP904L Cold Drawn Tubing

Close OD and wall tolerance
Smooth drawn bore
Small-bore instrument lines

EN 1.4539 Thin Wall Pipe

Sch 5S and 10S walls
Lower kg per metre
Weld or groove ends only, no threading

Share your NPS schedule and required metres.

Get today’s TP904L EXW Mumbai rate instantly.

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Secure ASTM B673 904L Welded And EFW Pipe With Weight Per Meter Chart

We supply updated ASTM A312 TP904L pipe for older specifications.

Legacy Call-Out

B673 / B677 → A312

A312 Welded Route

Autogenous seam

EFW Route

Filler-metal weld

Weld Check

Flattening or guided bend

ASTM B677 904L Seamless Pipe Weight Per Meter Chart

Theoretical kg/m from a 904L Stainless Steel Pipe stockist in Mumbai. Calculated using 904L density instead of carbon steel.

904L SS Pipe Weight CalculatorW (kg/m) = (OD − WT) × WT × 0.02498

NPS	OD (mm)	10S WT (mm)	10S kg/m	40S WT (mm)	40S kg/m	80S WT (mm)	80S kg/m
1/2″	21.34	2.11	1.01	2.77	1.28	3.73	1.64
3/4″	26.67	2.11	1.29	2.87	1.71	3.91	2.22
1″	33.40	2.77	2.12	3.38	2.53	4.55	3.28
1 1/4″	42.16	2.77	2.73	3.56	3.43	4.85	4.52
1 1/2″	48.26	2.77	3.15	3.68	4.10	5.08	5.48
2″	60.33	2.77	3.98	3.91	5.51	5.54	7.58
2 1/2″	73.03	3.05	5.33	5.16	8.75	7.01	11.56
3″	88.90	3.05	6.54	5.49	11.44	7.62	15.47
4″	114.30	3.05	8.47	6.02	16.28	8.56	22.61
5″	141.30	3.40	11.71	6.55	22.04	9.52	31.33
6″	168.28	3.40	14.00	7.11	28.62	10.97	43.10
8″	219.08	3.76	20.22	8.18	43.09	12.70	65.46
10″	273.05	4.19	28.14	9.27	61.07	12.70	82.58
12″	323.85	4.57	36.44	9.52	74.74	12.70	98.69

UNS N08904 Round Pipe Chemical Composition

N08904 heat limits per ASTM A312 Table 1. Bars compare each element to 28% nickel.

Nickel (Ni)23.0 – 28.0%

Chromium (Cr)19.0 – 23.0%

Molybdenum (Mo)4.0 – 5.0%

Copper (Cu)1.00 – 2.00%

Manganese (Mn)2.00% max

Silicon (Si)1.00% max

Nitrogen (N)0.10% max

Phosphorus (P)0.040% max

Sulfur (S)0.030% max

Carbon (C)0.020% max

Mumbai Based Stainless Steel 904L Pipe Manufacturer Serving Buyers Since 2007

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ASTM A312 TP904L Welded Pipe Mechanical Properties

Room temperature minimums per ASTM A312 Table 4. The hardness cap applies to A213 tube.

490MPa min

Tensile Strength (71 ksi)

215MPa min

Yield Strength, 0.2% (31 ksi)

35% min

Elongation, longitudinal (25% transverse)

90HRB max

Hardness, A213 tube (192 HBW)

904L Stainless Steel Pipe Physical Properties

Typical room temperature values for annealed 904L material. Use them for thermal and design checks.

Density

7.95 g/cm³

Melting Range

1300 to 1390°C

Modulus of Elasticity

195 GPa at 20°C

Thermal Conductivity

12 W/m·K at 20°C

Thermal Expansion

15.8 µm/m·°C (20 to 100°C)

Specific Heat

450 J/kg·K at 20°C

Electrical Resistivity

1.0 µΩ·m at 20°C

Magnetic Response

Non magnetic when annealed

SS 904L Pipe Pressure Rating Chart

Indicative working pressure for seamless pipe at ambient. Always confirm with your own design code.

NPS	Sch 10S (bar)	Sch 40S (bar)	Sch 80S (bar)
1/2″	265	357	497
3/4″	209	291	408
1″	220	272	376
1 1/4″	172	224	312
1 1/2″	149	201	284
2″	118	170	245
3″	88	161	228
4″	68	137	197
6″	51	109	171
8″	43	96	151
10″	39	87	120
12″	36	75	101

AISI 904L Thin Wall Pipe vs 316L vs Duplex 2205

Buyers compare these three grades for corrosive lines. Values are specification minimums with typical PREN.

904L

Acid-duty specialist

Molybdenum4.0-5.0%
Nickel23.0-28.0%
Copper1.00-2.00%
Typical PREN~34-35
Min. yield (pipe)215 MPa

316L

Lower cost, milder media

Molybdenum2.00-3.00%
Nickel10.0-14.0%
CopperNot specified
Typical PREN~24
Min. yield (pipe)170 MPa

904L

Wins on sulfuric and phosphoric acid

Molybdenum4.0-5.0%
Nickel23.0-28.0%
Copper1.00-2.00%
Typical PREN~34-35
Min. yield (pipe)215 MPa

2205

Duplex: high strength, capped temperature

Molybdenum3.0-3.5%
Nickel4.5-6.5%
CopperNot specified
Typical PREN~35
Min. yield (pipe)450 MPa

ASTM A312 TP904L Pipe OD and Wall Tolerance

OD limits follow ASTM A999 for A312 pipe. Wall may run 12.5% under the nominal value.

NPS Range	OD Over (mm)	OD Under (mm)	Wall Tolerance
1/8″ to 1 1/2″	+0.4	−0.8	−12.5% of nominal
Over 1 1/2″ to 4″	+0.8	−0.8	−12.5% of nominal
Over 4″ to 8″	+1.6	−0.8	−12.5% of nominal
Over 8″ to 18″	+2.4	−0.8	−12.5% of nominal
Over 18″ to 26″	+3.2	−0.8	−12.5% of nominal

WNR 1.4539 Tube Equivalent Grades

The same alloy named in each national system. These match functionally so order to one standard.

UNS

N08904

ASTM / ASME Pipe

A312 / SA312 TP904L

Werkstoff Nr.

1.4539

EN Name

X1NiCrMoCu25-20-5

JIS

SUS890L

BS (old)

904S13

AFNOR

Z2NCDU25-20

SS (Swedish)

2562

EN Tube Standards

EN 10216-5 / 10217-7

Ready Stock of SS 904L Seamless Pipe for Pune Plants Backed by 19+ Years

Short orders ship from our shelf lengths. Your shutdown never waits on a mill.

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JIS SUS890L Heat Exchanger Tube Acid and Chloride Limits

See where acid resistant 904L pipe pays off. And where another alloy may suit you better.

Strong Fit

Sulfuric Acid

Resists 0 to 100% acid up to 35°C.

Strong Fit

Phosphoric Acid

Handles hot and wet process acid grades.

Strong Fit

Chloride Pitting

PREN of 34 to 35 beats 316L’s 24.

Strong Fit

Sour Service

Listed in NACE MR0175 and ISO 15156-3. Use it only within its listed limits.

Check First

Strong Nitric Acid

Molybdenum free 304L can outperform 904L here.

Check First

Halide-Bearing Acids

HCl or fluoride traces may need higher alloy.

Check First

High Temperature

ASME stress values only go up to 371°C.

Check First

Chloride SCC

It performs far better than 300 series grades. Still it is not fully immune to SCC.

316L in wet-process H₃PO₄, 60°C>5 mm/yr

904L in wet-process H₃PO₄, 60°C1.2 mm/yr

904L Tube OD and BWG Wall Chart

Common OD and BWG wall pairs for tubing. Other sizes are drawn and quoted on request.

OD (inch)	OD (mm)	20 BWG (0.89 mm)	18 BWG (1.24 mm)	16 BWG (1.65 mm)	14 BWG (2.11 mm)	12 BWG (2.77 mm)
1/4″	6.35	✓	✓	✓	–	–
3/8″	9.53	✓	✓	✓	–	–
1/2″	12.70	✓	✓	✓	✓	–
5/8″	15.88	–	✓	✓	✓	–
3/4″	19.05	–	✓	✓	✓	✓
1″	25.40	–	✓	✓	✓	✓
1 1/4″	31.75	–	–	✓	✓	✓
1 1/2″	38.10	–	–	✓	✓	✓
2″	50.80	–	–	✓	✓	✓

Indian UNS N08904 Pipe Exporter Shipping to Saudi Arabia Through Dammam Port

Each crate ships with heat wise MTCs. Packing list and HS coded invoice go too.

Request Export Quote

Export Lanes for TP904L Pipe Out of Mumbai

Top ports for a 904L Stainless Steel Pipe exporter in India. Other destinations are routed on your request.

MUM

Netherlands

Rotterdam gateway for chemical parks across the EU

MUM

Turkey

Mersin port for fertilizer and acid units

MUM

Mexico

Manzanillo port discharge for Mexican process plants

MUM

Malaysia

Port Klang lane for Malaysian oleochemical buyers

ASME SA312 TP904L ERW Pipe Price Per Kg in Rupees: What to Send

904L Stainless Steel Pipe supplier in India rates track nickel. Send six details for a fixed dated rate.

Spec and Route

A312 TP904L, seamless or welded

NPS and Schedule

e.g. 2″ Sch 40S

Quantity

Metres or kg per size

Length and Ends

Random or cut; plain, bevel, thread

Inspection Level

3.1, 3.2 or TPI witness

Delivery Point

Site city or port + Incoterm

What Moves the Per-Kg Rate

Nickel is 23-28% of the alloy
Molybdenum adds 4-5%
Seamless costs more than welded
Heavier schedule = more kg per metre
3.2 / TPI adds inspection cost

EN X1NiCrMoCu25-20-5 Cold Drawn Tubing Applications

These plants upgrade from 316L to 904L. They switch when acid chlorides or heat rise.

Sulfuric acid plant pipingCopper helps it resist sulfuric acid attack.

Phosphoric acid and fertilizer unitsHandles wet process acid with lower corrosion rates.

Flue gas scrubbers at coal-fired plantsResists acidic condensate inside FGD absorber lines.

Seawater cooling and brackish water linesHigher PREN guards against chloride pitting in water.

Condensers and heat exchangersTubes resist pitting under hot chloride exchange duty.

Pharma and chemical process equipmentClean surface suits aggressive solvents and process media.

Pulp and paper processingStands up to bleach plant chemicals and filtrate.

Sulfuric acid pickling linesCarries hot sulfuric pickling acid in steel mills.

Offshore oil and gas process pipingListed for sour service within NACE MR0175 limits.

Mill Sources Behind Our 904L Pipe Stock

Every MTC from a 904L Stainless Steel Pipe stockist in India names the mill. Match it against your approved vendor list.

Mills We Source From

Delivery Estimate

Plan your TP904L project schedule around these windows. Typical dispatch and transit times from a 904L Stainless Steel Pipe supplier in Mumbai.

Ex-Stock Dispatch

Stock sizes leave our Mumbai yard
Truck-loaded inside 24-48 hours
Cutting and marking done first

Sea Freight

Sailings from Nhava Sheva
About 12-18 days to Gulf and African ports
Lowest landed cost per tonne

Air Freight

For breakdown and shutdown needs
Arrives in roughly 3-5 days
Crated for airline handling

Country-Specific ETA

Worked out per port pair
Clearance time added separately
Stated in writing on your quote

Chennai Supplier of NACE MR0175 Listed ASTM A312 TP904L Pipe

Chennai process plants get PMI checked lengths. Third party witness is available on request.

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Supply Network

904L Stainless Steel Pipe Near You: India and Overseas

Domestic orders travel by road from Mumbai. Overseas orders move by sea or air.

India

Mumbai
Pune
Ahmedabad
Rajkot
Gujarat
Delhi
Ghaziabad
Bengaluru
Chennai
Kolkata
Nagpur

Middle East and Africa

Saudi Arabia
UAE flag

UAE

Turkey

South Africa
Uganda flag

Uganda

Asia-Pacific

Singapore

Malaysia

Thailand

Indonesia

Philippines
Vietnam flag

Vietnam

Europe and Americas

United Kingdom
Germany flag

Germany

Italy

Netherlands
United States flag

United States
Canada flag

Canada

Mexico

Venezuela

ASTM B673 904L EFW Pipe Suppliers FAQs

Clear answers to buyer questions before a PO.

What decides the WNR 1.4539 EFW Pipe price per kg?

Nickel and molybdenum market prices on the quote date
Seamless vs welded route, NPS and schedule
Quantity, end finish and certification level

Is ASME SA312 TP904L Heat Exchanger Tube worth the extra cost over 316L?

Yes for sulfuric or phosphoric acid and high-chloride duty
Mo 4.0-5.0% vs 2.00-3.00%, plus 1.00-2.00% copper
For mild water or food lines, 316L is usually enough

Do ASTM B677 904L Tube and ASTM B673 904L Thin Wall Pipe still apply?

No, current editions no longer list UNS N08904
904L pipe now falls under ASTM A312 (TP904L)
We quote A312 against legacy B677 / B673 enquiries

Is SS 9041 the same as AISI 904L Round Pipe?

Yes, “9041” is a common misreading of 904L
The last character is the letter L, meaning low carbon
Order it as ASTM A312 TP904L / UNS N08904

Which certificates and tests come with each EN X1NiCrMoCu25-20-5 Heat Exchanger Tube order?

EN 10204 3.1 MTC as standard, 3.2 on request
Hydrostatic or eddy-current test on every length
PMI, IGC and SGS / BV / TUV witness when ordered

How fast can ASTM A312 TP904L Cold Drawn Tubing reach my site?

Stock sizes dispatch in 24-48 hours
Sea freight about 12-18 days to Gulf and African ports
Air freight about 3-5 days