ASTM A709 HPS 100W Steel Plate | A709 HPS 100W QT Bridge Steel supplier

ASTM A709 HPS 100W, also searched as A709 HPS100W, A709-HPS100W, HPS 100W, HPS100W, ASTM A709 HPS 100W plate and A709 HPS 100W 100ksi, is the 100 ksi high-performance weathering grade in ASTM A709/A709M. That book covers structural steel for bridges. HPS 100W is quenched-and-tempered Cu-Ni plate. It is the only current 100 ksi grade allowed for main bridge members.

Older A709 editions listed Grade 100 and Grade 100W. Those names are withdrawn for bridge main members. Current work uses HPS 100W only. Do not open a purchase order as A709 Grade 100 or 100W and expect a current mill stamp. A514 may still appear on bearings and secondary parts. That is not an HPS 100W girder plate.

Yield is 100 ksi / 690 MPa. Tensile is typically 110–130 ksi / 760–895 MPa. The plate is weathering. A709 says HPS 100W shall not be substituted for Grade 36, Grade 50, Grade 50S, Grade 50W or HPS 50W. HPS 70W shall not be substituted for those lower grades either. SHH STEEL will not make that swap on a silent order.

Do not treat HPS 100W as A572 Gr.50. Do not treat it as A36. Do not treat it as Grade 50W or HPS 50W. Those stay at 50 ksi. 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 8 mm – 100 mm, heavier by enquiry. 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 100W from first-line Chinese QT 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 10025-6.

Nearby pages that buyers compare, but must not swap blindly, include A514 Grade Q, A514 Grade B, EN 10025-6 S690QL and Corten A.

HPS 100W uses a QT Cu-Ni-Cr-Mo window, not the HPS 70W low-carbon window and not A588 Type A / Type B. 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 100W

Copper sits near 1%. That is the weathering QT signature. 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 HPS 70W. HPS 70W copper is 0.25–0.40%. Do not treat it as A514 Gr.Q unless both books are met. Do not treat it as S355JR.

Buyers search A709 HPS 100W mechanical properties, HPS100W yield, A709 HPS 100W 100ksi and HPS 100W tensile.

Tensile Properties — ASTM A709 HPS 100W plate

Usual 100 ksi name applies through common QT bridge thicknesses up to 4 in / 100 mm. Thicker plate must follow the thickness note in the ordered A709 year. Toughness is mandatory HPS practice. Write non-FCM or FCM, zone and temperature. A silent 100 ksi A514 heat is not HPS 100W.

Density is 7.85 g/cm³. Typical hardness after QT sits in the A514 / 100 ksi band. Hardness is not the design value.

There is no official one-to-one worldwide twin for A709 HPS 100W. What buyers compare is a 690 MPa QT weathering bridge plate.

In the United States the withdrawn twins are A709 Grade 100 and Grade 100W. A514 Grade Q and A514 Grade B stay on bearings and secondary members. They are not automatic HPS 100W substitutes. Corten A stays near 50 ksi.

In Europe shops compare S690QL or S690QL1 for strength only. Weathering S355J2W is 355 MPa only. See EN 10025-6 and EN 10025-5.

In China compare Q690 QT plus GB/T 4171 weathering grades. Dual mark only when both books are fully met.

Buyers pick A709 HPS 100W when a flange or box member wants 100 ksi yield, a patina and HPS toughness. Search phrases such as HPS100W, A709 HPS 100W, A709-HPS100W and HPS 100W 100ksi all point here.

It is the wrong plate for a 50 ksi weathering girder. That work is Grade 50W or HPS 50W. It is the wrong plate for a 70 ksi HPS flange. That work is HPS 70W. It is the wrong plate for a painted warehouse that can use S355JR. It is the wrong plate for a pressure vessel. That work is A516 Grade 70.

Unpainted HPS 100W still needs wet-dry cycles. Standing water and marine splash need a coating review. SHH STEEL will say that on the quotation.

ASTM A709 HPS 100W is weldable QT plate, but it is not Grade 50 shop practice. Treat welding as 100 ksi HPS production welding.

Typical consumables are matching 100–110 ksi low-hydrogen wires qualified on an HPS 100W or A514-family PQR. A procedure written for HPS 70W is under-matched on strength. A procedure written for A514 Gr.Q is the closest starting point after copper and nickel are checked. A procedure written for S355JR is not an HPS procedure.

Preheat follows thickness, hydrogen and the approved WPS. After heavy forming, a stress relief may be required and may drop yield if the temper is exceeded. 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 100W is quenched and tempered. Write QT on the purchase order.

Austenitize typically 900–930 °C, quench, then temper in the mill window that holds 100 ksi yield and 110–130 ksi tensile. This is not as-rolled 50W and not HPS 70W TMCP.

The certificate lists ASTM A709 HPS 100W; heat number; heat analysis and product analysis when ordered; tensile to the 100 ksi table; HPS impact zone when ordered. Certificates may be EN 10204 3.1 or EN 10204 3.2. Do not accept a stamp that only says Grade 100.

Usual supply range from SHH STEEL for A709 HPS 100W QT bridge steel plate:

• Thickness: commonly 8 mm – 100 mm, heavier plate by enquiry
• Width: 1500 mm – 3500 mm
• Length: 3000 mm – 12000 mm

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

Dimensional limits for ASTM A709 HPS 100W follow A6 / A6M unless the purchase order names another table.

Typical A6 thickness tolerance idea for A709 HPS 100W

Width on 1500–3500 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 after QT follows A6 unless a tighter class is written. SHH STEEL will not assume a zero-minus extra on HPS100W unless the order says so.

HPS 100W already defines 100 ksi yield, the tensile band and QT weathering chemistry. Extra items still have to be written on the purchase order.

Book name. Write ASTM A709 HPS 100W. Do not write Grade 100 or 100W as current.

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. QT.

Identification and stamping. Heat number, A709 HPS 100W, thickness and mill logo.

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

A709 HPS 100W is the plate for a 100 ksi unpainted HPS bridge file. It is the wrong plate for a 50 ksi weathering girder. That work is 50W. It is the wrong plate for a painted carbon frame that can use A36.

SHH STEEL sources ASTM A709 HPS 100W from first-line Chinese QT 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 QT rolling about 40–50 days; 3.2 inspection about 50–60 days.

SHH STEEL is a global steel mill sourcing partner and steel manufacturer & exporter (mill-direct, China origin). For A709 HPS 100W that means mill-direct QT price, not a multi-layer stockist mark-up on a rare 100 ksi weathering heat. We buy from first-line QT mills that already run the Cu-Ni HPS window, so the unit price stays competitive against imported HPS 100W sitting in a third-country warehouse.

Delivery is short when the size is in rolling range: ex-stock 5–7 days, standard QT heat about 40–50 days, 3.2 inspection about 50–60 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 100W, keep copper near 1%, and do not ship A514 or S690QL as HPS 100W. We will not stamp withdrawn Grade 100 on a current certificate, will not drop nickel to save alloy, and will not treat A709 as A36. If the drawing is only 70 ksi HPS, we will move the inquiry to HPS 70W and keep the price on the right grade.

ASTM A709 HPS 100W Steel Plate is 100 ksi / 690 MPa QT weathering bridge plate, with 110–130 ksi tensile, Cu-Ni-Cr-Mo chemistry and A709 HPS toughness. Whether the inquiry says ASTM A709 HPS 100W, A709 HPS100W, HPS 100W, A709-HPS100W or HPS 100W 100ksi, SHH STEEL as a global steel mill sourcing partner and steel manufacturer & exporter (mill-direct, China origin) supplies plate with HPS 100W chemistry, heat and product analysis as ordered, A6 tolerances and EN 10204 3.1 or 3.2 certification.

SHH STEEL supplies ASTM A709 HPS 100W QT 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, QT route, FCM impact, cutting, blast, 3.2 inspection or a worldwide quotation.

ASTM A709 HPS 100W Steel Plate, A709 HPS100W, HPS 100W QT bridge steel, 100ksi weathering steel, A709 HPS 100W supplier, SHH STEEL