ASTM A709 HPS 50W Steel Plate | A709 HPS 50W Weathering Bridge Steel

ASTM A709 HPS 50W, also searched as A709 HPS50W, A709-HPS50W, HPS 50W, HPS50W, ASTM A709 HPS 50W plate and A709 HPS 50W 50ksi, is the 50 ksi high-performance weathering grade in ASTM A709/A709M. That book covers structural steel for bridges. HPS means High Performance Steel: lower carbon, tighter sulfur, and toughness that a plain Grade 50W heat does not always carry.

HPS 50W is not Grade 50 and not Grade 50W. Yield is still 50 ksi / 345 MPa, same name as 50W, but the chemistry is the HPS window, not A588 Type A or Type B. A709 says HPS 70W and HPS 100W shall not be substituted for HPS 50W. HPS 50W shall not be substituted for Grade 36, Grade 50 or Grade 50S without agreement. SHH STEEL will not make that swap on a silent order.

Do not treat HPS 50W as A572 Gr.50. Do not treat it as A36. Do not treat it as ordinary A588 Grade A or B unless the mill dual-marks both books. Do not treat A709 as a pressure-vessel plate. That work sits on ASTM A516 or pressure vessel steel plates.

General requirements follow A6/A6M. Fine-grain practice applies. Common plate thickness is 6 mm – 100 mm, heavier by enquiry. To 100 mm the minimum yield is 50 ksi / 345 MPa and the minimum tensile is 70 ksi / 485 MPa. Density is 7.85 g/cm³.

SHH STEEL is a global steel mill sourcing partner and steel manufacturer & exporter (mill-direct, China origin). We source A709 HPS 50W from first-line Chinese mills, print heat and product analysis when ordered, record the impact zone when named, and ship plate to fabricators in the United States, Europe, the Middle East, Southeast Asia, Africa and South America.

Related category pages: weathering steel plates, structural steel plates, high strength low alloy plates and EN 10025-5.

Nearby pages that buyers compare, but must not swap blindly, include Corten A, Corten B, EN 10025-5 S355J2W and A572 Gr.50.

HPS 50W uses the low-carbon Cu-Ni-Cr-Mo-V window, not the A588 Type A / Type B window. Heat analysis is the mill table. Product analysis, when ordered, follows A6 product tolerances on that heat.

Heat Analysis and Product Analysis — ASTM A709 HPS 50W

Sulfur is held very low on purpose. That is the HPS difference versus Grade 50W. If the purchase order writes product analysis, SHH STEEL prints both columns. Confirm the ordered A709 year if a mill table differs by edition.

Do not treat this chemistry as A709 Grade 50W. 50W follows A588 Type A or Type B. Do not treat it as S355JR.

Buyers search A709 HPS 50W mechanical properties, HPS50W yield, A709 HPS 50W 50ksi and HPS 50W tensile.

Tensile Properties — ASTM A709 HPS 50W plate

Yield name is the same as Grade 50W. The HPS extra is chemistry plus toughness. Write non-FCM or FCM, zone and temperature. A silent 50W heat without the HPS table is not HPS 50W.

Density is 7.85 g/cm³. Typical hardness after rolling sits around 130–180 HBW.

There is no official one-to-one worldwide twin for A709 HPS 50W. What buyers compare is a 345 MPa weathering plate with HPS chemistry and toughness.

In the United States the ordinary weathering twin is A709 Grade 50W / A588. The next HPS step is HPS 70W. Corten A and Corten B are trademark names and are not HPS.

In Europe compare S355J2W, S355J0W and S355K2W for patina only. See EN 10025-5. QT comparisons such as S460QL are a different family.

In China compare GB/T 4171 Q355GNH or Q355NH. Dual mark only when both books are fully met.

Buyers pick A709 HPS 50W when a girder wants 50 ksi yield, a patina and HPS toughness without stepping up to 70 ksi. Search phrases such as HPS50W, A709 HPS 50W, A709-HPS50W and HPS 50W 50ksi all point here.

It is the wrong plate for a painted A572-50 girder. That work is A709 Grade 50. It is the wrong plate for ordinary A588 chemistry when the file only says 50W. That work is Grade 50W. It is the wrong plate for a 70 ksi HPS flange. That work is HPS 70W. It is the wrong plate for a pressure vessel. That work is A516 Grade 70.

Unpainted HPS 50W needs wet-dry cycles. Standing water and marine splash need a coating review. SHH STEEL will say that on the quotation.

ASTM A709 HPS 50W was written so fabricators can weld weathering plate with less hydrogen risk than a high-carbon 50W heat. Treat welding as HPS bridge production welding.

Typical consumables are matching weathering wires or E8018-C3 / E80C-G type electrodes qualified on a 50 ksi HPS family. A procedure written for Grade 50W may still work after the WPS heat range is checked, because yield is the same. A procedure written for HPS 70W is over-matched on strength. A procedure written for S355JR is not an HPS procedure.

Preheat follows thickness and hydrogen control. After heavy forming, a stress relief may be required. The fabricator owns the WPS. SHH STEEL can share mill heat data, product analysis, CEV and the HPS impact table for that review.

Usual delivery from SHH STEEL for A709 HPS 50W is TMCP or controlled as-rolled. Quench and temper is used when the mill route or the purchase order asks for it. Write the route on the order.

HPS 50W is not A514 and not HPS 100W. Normalizing, when used, is typically 880–920 °C, soaked through, then air cooled.

The certificate lists ASTM A709 HPS 50W; heat number; heat analysis and product analysis when ordered; tensile by thickness band; HPS impact zone when ordered. Certificates may be EN 10204 3.1 or EN 10204 3.2. Dual mark to A588 is only valid when both chemistries are met.

Usual supply range from SHH STEEL for A709 HPS 50W weathering bridge steel plate:

• Thickness: commonly 8 mm – 100 mm, heavier plate by enquiry
• Width: 1500 mm – 4000 mm
• Length: 3000 mm – 12000 mm

Cut-to-size girders and fascia plates are available. Browse more sizes on weathering steel plates, structural steel plates and the products index.

Dimensional limits for ASTM A709 HPS 50W follow A6 / A6M unless the purchase order names another table.

Typical A6 thickness tolerance idea for A709 HPS 50W

Width on 1500–4000 mm plate is commonly held to about ±20–25 mm unless a tighter extra is named. Length on 3000–12000 mm plate is commonly held to about +50 / 0 mm or ±25 mm by mill practice. Flatness follows A6 unless a tighter class is written. SHH STEEL will not assume a zero-minus extra on HPS50W unless the order says so.

HPS 50W already defines 50 ksi yield, weathering HPS chemistry and the tensile table. Extra items still have to be written on the purchase order.

Book name. Write ASTM A709 HPS 50W. Do not write only 50W.

Impact zone. Write non-FCM or FCM, zone and temperature.

Product analysis. Write it if the file needs the second chemistry column.

Through-thickness / Z-test. When needed on thick flanges.

NDE. UT to the named class.

Heat-treat route. TMCP, as-rolled or QT.

Identification and stamping. Heat number, A709 HPS 50W, thickness and mill logo.

Third-party witness. EN 10204 3.2 with SGS, TÜV, BV, ABS or the inspector named.

A709 HPS 50W is the plate for a 50 ksi unpainted HPS bridge file. It is the wrong plate for a painted warehouse that can use S355JR. It is the wrong plate for a 70 ksi HPS flange. That work is HPS 70W.

SHH STEEL sources ASTM A709 HPS 50W from first-line Chinese mills and ships it on worldwide terms. Partner mills include Wuyang (Wugang), Angang, Shougang, Hanye, Anyang Iron & Steel, Baosteel, Xinyu, Xingcheng, TISCO (Taiyuan), Jiuquan (JISCO) and other qualified mills when the size requires it.

Mill test certificates are issued to EN 10204 3.1 as standard. EN 10204 3.2 is arranged when the order names a third-party hold point.

Usual rolling thickness: 10 mm, 12 mm, 16 mm, 20 mm, 25 mm, 30 mm, 32 mm, 40 mm, 50 mm, 60 mm, 80 mm, 100 mm.

Processing: CNC or flame cutting, bevel, flattening, light blast, UT to the named class.

Trade terms: FOB Shanghai main, CIF destination available. Payment: TT, LC, or TT + LC.

Ocean time from Shanghai: US West 14–18 days; US Gulf 28–35 days; Rotterdam / Antwerp 28–35 days; Jebel Ali 18–25 days; Singapore 7–12 days; other ports quoted.

Third-party: SGS, TÜV, BV, ABS, CCS, GL, VL, DNV, RINA, NK, KR, or the inspector named.

SHH STEEL is a global steel mill sourcing partner with mill partnerships in China. We supply ASTM, ASME, EN, DIN, JIS and GB steel to buyers in the United States, Europe, the Middle East, Southeast Asia, Africa and South America. Origin is mill-direct, China origin.

SHH STEEL has supplied steel plates to the USA, Mexico, Argentina, Peru, El Salvador, Spain, Netherlands, Germany, UAE, Saudi Arabia, South Africa, India, Thailand, Singapore, Vietnam, the Philippines, Japan and Korea.

Typical lead time: ex-stock 5–7 days when plate is in yard; standard HPS rolling about 35–45 days; 3.2 inspection about 45–60 days.

SHH STEEL is a global steel mill sourcing partner and steel manufacturer & exporter (mill-direct, China origin). For A709 HPS 50W that means mill-direct price, not a multi-layer stockist mark-up. We buy from first-line mills that already run the low-sulfur HPS window, so the heat carries copper, nickel, chromium and the HPS impact route without a second upgrade charge.

Delivery is short when the size is in rolling range: ex-stock 5–7 days, standard heat about 35–45 days, 3.2 inspection about 45–60 days. Cutting, bevel and UT can run in the same window. FOB Shanghai is the main term; CIF to US West, US Gulf, Rotterdam, Jebel Ali and Singapore is quoted on the same file.

Experience on this grade is simple: print HPS 50W, keep carbon at 0.11% max, and do not ship Grade 50W or S355J2W as HPS 50W. We will not drop nickel and copper to save alloy, will not stamp plain 50W on an HPS order, and will not treat A709 as A36. If the drawing only needs ordinary 50 ksi weathering, we will move the inquiry to Grade 50W and keep the price on the right grade.

ASTM A709 HPS 50W Steel Plate is 50 ksi / 345 MPa high-performance weathering bridge plate, with low-carbon Cu-Ni-Cr-Mo-V chemistry and A709 HPS toughness. Whether the inquiry says ASTM A709 HPS 50W, A709 HPS50W, HPS 50W, A709-HPS50W or HPS 50W 50ksi, SHH STEEL as a global steel mill sourcing partner and steel manufacturer & exporter (mill-direct, China origin) supplies plate with HPS chemistry, heat and product analysis as ordered, A6 tolerances and EN 10204 3.1 or 3.2 certification.

SHH STEEL supplies ASTM A709 HPS 50W Weathering Bridge Steel to the United States, Europe, the Middle East, Africa, Asia and the Americas for work that actually names this grade.

Contact SHH STEEL for mill rolling, HPS route, FCM impact, cutting, blast, 3.2 inspection or a worldwide quotation.

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