Golden Steel Material is a premier ISO-certified stockist based in Al Jubail. We supply high-performance pipes, fittings, valves, and flanges to the Oil & Gas and Industrial sectors across Saudi Arabia and the GCC.
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Golden Steel Material is a specialized ASTM A403 WP347/347H Stainless Steel Pipe Fittings Supplier in Saudi Arabia, engineered for the most critical high-pressure and high-temperature (HPHT) environments. Grade 347/347H is a niobium-stabilized austenitic stainless steel. By alloying with Niobium (Nb), this material provides superior resistance to intergranular corrosion, ensuring that the steel remains stable even after prolonged exposure to high-heat process streams. Because Niobium carbides are more stable than the Titanium carbides found in 321-grade steel, 347 is often the preferred selection for extreme thermal environments, including steam headers, boiler superheaters, and petrochemical catalytic units.
As a specialized WP347/347H pipe fittings stockist, we deliver components manufactured strictly to ASTM A403 and ASME SA403 specifications. The "WP" designation certifies that these are wrought products, meeting the stringent pressure-containing requirements of ASME B16.9 and B16.11 standards. We supply both 347 (General) and 347H (High Carbon) variants. The 347H grade, with its controlled carbon range of 0.04% to 0.10%, is specifically engineered for enhanced creep strength, providing the mechanical reliability needed to prevent piping deformation in sustained high-heat service.
We serve as a trusted 347/347H stainless steel pipe fittings exporter in Saudi Arabia, supporting the refinery and power generation hubs in Jubail, Yanbu, and Dammam. Every fitting is provided with MTC EN 10204 3.1 certification, guaranteeing full material traceability for your regulatory audits. Our quality assurance protocol includes mandatory PMI (Positive Material Identification) and precision dimensional validation to ensure that every component integrates perfectly into your high-pressure lines. When your facility requires piping components that provide unrivaled thermal stability and immunity to weld decay in continuous high-temperature service, our 347/347H fittings offer the metallurgical performance you require to ensure long-term operational safety.
| Specification | Details |
|---|---|
| Specification | ASTM B366, ASTM SB 366, ASTM B564, ASME SB564 |
| Grade | 304 (UNS S30400), 304L (UNS S30403), 304H (UNS S30409), 310 (UNS S31000), 310S (UNS S31008), 316 (UNS S31600), 316L (UNS S31603), 316H (UNS S31609), 317 (UNS S31700), 317L (UNS S31703), 321 (UNS S32100), 321H (UNS S32109), 347 (UNS S34700), 347H (UNS S34709), 410 (UNS S41000), 446 (UNS S44600), 904L (UNS N08904), 31254 (UNS S31254) |
| Type | Seamless / Welded / Fabricated Pipe Fittings |
| Bending Radius | R=1D, 2D, 3D, 5D, 6D, 8D, 10D or Custom Pipe Fittings |
| Size Range | 1/2" NB to 24" NB in Sch 10s, 40s, 80s, 160s, XXS. (DN6~DN100) |
| Dimensions | ANSI/ASME B16.9, B16.28, MSS-SP-43. ASME 16.11, MSS SP-79, 83, 95, 97, BS 3799 |
| Pressure | Threaded end-2000lb/3000lb/6000lbs Pipe Fittings; Socket-weld end-3000/6000/9000lbs Pipe Fittings |
| Thickness | SCH10, SCH20, SCH30, STD SCH40, SCH60, XS, SCH80, SCH100, SCH120, SCH140, SCH160, XXS |
| Surface Treatment | Transparent oil, rust-proof black oil or hot galvanized |
| Special Design | As per your drawing |
| Test | Direct-reading Spectrograph, Hydrostatic testing machine, X-ray detector, Ultrasonic flaw detector, Magnetic particle detector |
| Equipment | Press machine, Bending machine, Pushing Machine, Electric bevelling machine, Sand-blasting machine, etc. |
| Origin | West Europe / Japan / Indian / USA / Korean |
| Test Certificates | Manufacturer Test Certificate as per EN 10204 / 3.1B, Raw Materials Certificate, 100% Radiography Test Report, Third Party Inspection Report |
| Specialized manufacturer of | Stainless steel 90° Elbows, Stainless steel 45° Elbows, Stainless steel Tees, Stainless steel Crosses, Stainless steel Couplings, Stainless steel Reducers, Stainless steel Inserts, Stainless steel Caps, Stainless steel Nipples, and Stainless steel Unions. Stainless steel Pipe socket weld fittings are available in class 3000, 6000 and 9000. Stainless steel Pipe threaded fittings are available in class 2000, 3000 and 6000. Stainless steel Forged Pipe Fittings – Socket Weld & Threaded, Stainless steel Equal Tees & Stainless steel Reducing Tees, Stainless steel 90° & 45° Elbows – Female-Female, Male-Female, Male-Male, Stainless steel Union, Stainless steel Nipples, Stainless steel Couplings, Stainless steel Plugs |
| Key markets and industries |
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| Reason to choose / Key properties |
|
| Stainless Steel Grades |
|
Stainless Steel 347 Elbow
Stainless Steel 347 Tee
Stainless Steel 347 Cross
Stainless Steel 347 Reducer
Stainless Steel 347 End Cap
Stainless Steel 347 Union
| Grade | Limit | Fe | Cr | Ni | Mn | Si | P | C | S | Nb (Niobium) |
|---|---|---|---|---|---|---|---|---|---|---|
| AISI 347 | Min | Bal. | 17.0 | 9.0 | – | – | – | 0.040 | – | 8 x C |
| Max | – | 20.0 | 13.0 | 2.00 | 0.75 | 0.040 | 0.080 | 0.030 | 0.80 |
Physical Properties
| Property Type | Grade 347 | Grade 347H |
|---|---|---|
| Tensile Strength (MPa) | 515 – 690 (Min) | 515 – 740 (Min) |
| Yield Strength 0.2% Offset (MPa) | 215 – 260 (Min) | 215 – 260 (Min) |
| Elongation (% in 50mm) | 40 (Min) | 40 (Min) |
| Density / Weight (g/cm³) | 7.90 | 7.90 |
| Industrial Locations & Keywords |
|---|
| Riyadh Industrial Cities (1st, 2nd, 3rd & Sudair) |
| Jeddah Industrial Cities (1st, 2nd & 3rd) |
| Dammam Industrial Areas (1st, 2nd & 3rd) |
| Jubail Industrial City |
| Yanbu Industrial City |
| Rabigh Industrial City |
| Al Khobar Industrial Area |
| Al Ahsa Industrial City |
| Madinah Industrial City |
| Makkah Industrial City |
| Taif Industrial City |
| Tabuk Industrial City |
| Jazan Industrial City |
| Industrial supplier in Saudi Arabia |
| Pipe fittings supplier in Jubail / Dammam / Riyadh |
| Flange and valve supplier Saudi Arabia |
| Fast delivery industrial materials KSA |
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