Stainless Steel 304H Pipes in seamless, ERW and welded to ASTM A312. Compare quotes from verified suppliers on MetalMitra, with MTC 3.1 and worldwide delivery.
- Stainless Steel 304H Pipes
- SS 304H
- Seamless
- ERW
- Welded
- Large Diameter
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Specifications
| Material Grade | Stainless Steel 304H |
|---|---|
| Specifications | ASTM A213 / ASME SA213, ASTM A249, ASTM A269, ASTM A312 / ASME SA312, ASTM A358 |
| Additional Standards | ASTM A789 / ASTM A790 where applicable to product requirements |
| Dimensions | ASTM, ASME, API and customer-specific requirements |
| Size Range | 1/8" NB to 30" NB |
| 304H Pipes & Tubes | 1/2" NB – 16" NB |
| ERW 304H Pipes & Tubes | 1/2" NB – 24" NB |
| EFW 304H Pipes & Tubes | 6" NB – 100" NB |
| Specialization | Large Diameter Sizes |
| Thickness / Schedules | SCH 20, SCH 30, SCH 40, STD, SCH 60, SCH 80, XS, SCH 120, SCH 140, SCH 160, XXS |
| Type | Seamless, ERW, Welded, Fabricated & CDW |
| Form | Round, Square, Rectangular, Coiled, U Shape, Pan Cake Coils & Hydraulic Tubes |
| Length | Single Random, Double Random & Required Length |
| Ends | Plain End, Beveled End & Threaded |
Grades & standards
- Stainless Steel 304H
- ASTM A312
- ASTM A213
- ASTM A269
- ASTM A249
- ASTM A358
- ASTM A790
- ASTM A789
Chemical composition & mechanical properties
| C | Mn | P | S | Si | Cr | Ni |
|---|---|---|---|---|---|---|
| 0.04–0.10 | 2.00 | 0.045 | 0.030 | 0.75 | 18.0–20.0 | 8.0–10.5 |
| Tensile strength, min | 515 MPa |
|---|---|
| Yield strength (0.2%), min | 205 MPa |
| Elongation in 50 mm, min | 40% |
| Hardness, max | 201 HBW |
Single values are maximums unless marked min. Values per ASTM A240 (plate, sheet and strip); always confirm against the purchase specification and the mill test certificate.
Stainless Steel 304H Pipes for process, pressure and heat-transfer lines, available on MetalMitra in seamless, ERW and welded to ASTM A312, with mill-certified traceability on every lot.
Stainless Steel 304H is a higher-carbon version of the 304 stainless steel family, developed for applications where good strength and performance at elevated temperatures are required. The grade is widely considered for high-temperature process equipment, industrial piping, heat-related applications and engineering systems.
SS 304H Pipes & Tubes are commonly considered for elevated-temperature process systems, industrial piping, heat-related applications and engineering equipment where the properties of the 304H grade are suitable.
Why engineers choose it
- High-Temperature Service — Suitable for selected elevated-temperature industrial applications.
- Good Mechanical Strength — Provides useful strength characteristics for demanding process systems.
- Corrosion Resistance — Offers the corrosion resistance associated with the 304 stainless steel family.
- Large Diameter Availability — Available in large diameter sizes for specialized piping requirements.
SS 304H Pipes & Tubes Product Types
SS 304H Seamless Pipes — Suitable for demanding pressure and process piping applications.
SS 304H ERW Pipes — Available for industrial piping and fabrication requirements.
SS 304H Welded Pipes — Available in different dimensions and customized configurations.
SS 304H Tubes — Suitable for process, engineering and heat-related applications.
SS 304H Large Diameter Pipes — Supplied for specialized large-diameter industrial requirements.
SS 304H Hydraulic Tubes — Precision tubing available according to application requirements.
Industries & Applications
- Oil & Gas
- Petrochemical
- Chemical Processing
- Power Generation
- Heat Exchangers
- Process Equipment
- Refineries
- Marine
- Pharmaceutical
- Food Processing
- Fertilizer Plants
- General Engineering
Other Stainless Steel 304H Products
SS 304H Pipes & Tubes · SS 304H Seamless Pipes · SS 304H ERW Pipes · SS 304H Welded Pipes · SS 304H Seamless Tubes · SS 304H Welded Tubes · SS 304H Large Diameter Pipes · SS 304H Hydraulic Tubes
Inspection & paperwork
Suppliers on MetalMitra back Stainless Steel 304H Pipes with the checks and paperwork your QA team expects.
- Dimensional & visual inspection
- Grade verification against the order
- Positive Material Identification (PMI) as applicable
- EN 10204 3.1 Mill Test Certificate
- Third-party inspection (TPI) on request
The MetalMitra advantage
- Checked sellers only — Every supplier profile is screened by MetalMitra before it goes live.
- Faster sourcing — Post one requirement and receive competitive offers without chasing calls.
- Paperwork sorted — MTC 3.1, test reports and TPI arranged as your project demands.
- Global logistics — Seaworthy packing and dispatch to project sites across the world.
Get a quote
Tell us the specification, quantity and destination you need for Stainless Steel 304H Pipes. MetalMitra connects you with suppliers who can deliver.
Technical note: Figures shown are indicative. Final acceptance should be based on the applicable standard, approved drawings and the MTC supplied with the material.
Testing & documents
Ask for the documents you need in your requirement — suppliers confirm them in their quotation:
- Mill test certificate to EN 10204 3.1, or 3.2 with third-party witness
- Third-party inspection (TPI) by SGS, Bureau Veritas, TÜV or your nominated agency
- Tests as the standard or your order requires: hydro, PMI, IGC, NDT, hardness or impact tests
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