ASTM A1017 Grade 23 Steel Plate | A1017 Gr.23 2.25Cr-1.6W Vessel Plate

ASTM A1017 Grade 23, also searched as A1017 Gr.23, A1017GR23, A1017-23, SA-1017 Grade 23, SA1017 Gr.23, T23 plate and P23 plate, is the 2.25Cr-0.20Mo-1.60W pressure-vessel grade in ASTM A1017/A1017M. That book covers chromium-molybdenum-tungsten plates for welded boilers and vessels at elevated temperature. General requirements follow ASTM A20 / ASME SA-20. The Code twin is SA-1017 Grade 23.

This page is not ASTM A387 Grade 22 Class 2. Grade 22 is 2.25Cr-1Mo with no 1.60% tungsten window. This page is not ASTM A387 Grade 22 Class 1. This page is not ASTM A387 Grade 21 Class 2. This page is not A1017 Grade 911 or Grade 92.

Tensile is 74–100 ksi / 510–690 MPa. Yield is 58 ksi / 400 MPa min. Elongation is 20% in 2 in. Hardness on Grade 23 shall not exceed 220 HB. Delivery is normalized and tempered. Typical austenitize is 1900–1975 °F / 1040–1080 °C. Typical temper for Grade 23 is 1350–1470 °F / 730–800 °C. A1017 does not split Grade 23 into Class 1 and Class 2.

SHH STEEL is a global steel mill sourcing partner and steel manufacturer & exporter (mill-direct, China origin). We buy this grade from qualified Chinese mills, check W, V and Nb on the heat analysis, record N+T and hardness on the certificate, and ship plate to fabricators in the USA, Europe, Middle East, Southeast Asia, Africa and South America.

Related category pages: ASTM A387, ASME SA387 and pressure vessel steel plates.

2.25Cr-1Mo sisters without tungsten belong on ASTM A387 Grade 22 Class 2 and EN 10028-2 10CrMo9-10.

Grade 23 is a low-molybdenum, tungsten-bearing 2.25Cr grade. Do not read it as A387 Grade 22.

Heat Analysis and Product Analysis — ASTM A1017 Grade 23

If tungsten is missing and molybdenum is 0.90–1.10%, the heat is ASTM A387 Grade 22 Class 2, not Grade 23. If chromium is 8.5–9.5%, the heat is Grade 911 or Grade 92, not 23. SHH STEEL prints heat analysis on every certificate. Density is 7.85 g/cm³.

Buyers search A1017 Gr.23 mechanical properties, A1017GR23 yield, T23 plate tensile and SA-1017 Grade 23 hardness.

Tensile, Yield and Hardness — ASTM A1017 Grade 23

Grade 22 Class 2 is 515–690 MPa / 310 MPa and does not carry the 220 HB cap written for A1017 Grade 23. Grade 911 and Grade 92 sit at 620–840 MPa / 440 MPa. Do not quote those 9Cr numbers on a Grade 23 order.

There is no official one-to-one worldwide swap for A1017 Gr.23. What buyers compare is the T23 / P23 / 2.25Cr-1.6W idea.

In the United States the current plate name is ASTM A1017 Grade 23. The Code name is SA-1017 Grade 23. Tube and pipe jobs use T23 / P23. Plate still has to meet A1017 when the specification is plate. ASTM A387 Grade 22 Class 2 is 2.25Cr-1Mo without tungsten.

In Europe the usual 2.25Cr-1Mo comparison is EN 10028-2 10CrMo9-10 or EN 10028-2 11CrMo9-10. Those pages sit on EN 10028-2. They are not Grade 23.

Dual marking is possible only when both books are fully met.

Buyers pick A1017 Gr.23 when a boiler, header or high-temperature vessel file wants T23 / P23 chemistry and the 510–690 MPa table. Search phrases such as A1017GR23, A1017 Grade 23, SA-1017 Grade 23, T23 plate and P23 plate all point here.

It is not a substitute for ASTM A387 Grade 22 Class 2. That grade has about 1% Mo and no 1.6% W. It is not a substitute for EN 10028-2 10CrMo9-10.

SHH STEEL supplies this plate to fabricators in the United States, Mexico, South America, Europe, the Middle East, Africa and Asia.

A1017 Grade 23 is killed 2.25Cr-0.20Mo-1.60W-V-Nb vessel plate at 510–690 MPa. Treat welding as production welding, and as ASME Section I / Section VIII welding when the equipment is Code work.

Qualify to the applicable code. Consumables must match a T23 / P23 family. A procedure written for ASTM A387 Grade 22 Class 2 is 2.25Cr-1Mo, not Grade 23. Preheat, interpass and PWHT must stay inside the qualified WPS. Grade 23 hardness is already capped at 220 HB; the weld procedure has to respect that cap if the file carries it into the weld zone. The fabricator owns the WPS. SHH STEEL can share mill heat data for that review.

Usual delivery from SHH STEEL for A1017 Gr.23 is normalized and tempered.

• Austenitize: 1040–1080 °C (1900–1975 °F)
• Temper for Grade 23: 730–800 °C (1350–1470 °F)

Grade 911 in the same book tempers at the tighter 740–780 °C band. Do not mix the two temper tables.

Annealed plate cannot be Grade 23. If the mill only annealed the heat, it cannot be certified A1017 Grade 23.

If the vessel will see PWHT, say so. Simulated PWHT on test coupons is worth naming. Extra simulation, 3.2 hold points or special NDE add time. Plan about two months when those extras are on the order.

The certificate lists ASTM A1017 Grade 23 and/or SA-1017 Grade 23 as the order named; heat number; heat analysis including W, V and Nb; tensile to the Grade 23 table; hardness not over 220 HB; heat-treatment route and temperatures. Certificates may be EN 10204 3.1 or EN 10204 3.2.

Usual supply range from SHH STEEL for A1017 Gr.23 2.25Cr-1.6W vessel plate:

• Thickness: commonly 6 mm – 150 mm, thicker by mill agreement
• Width: 1500 mm – 4000 mm
• Length: 3000 mm – 12000 mm

Maximum thickness is limited by the ability of the composition to meet the Grade 23 tensile and 220 HB tables. 2.25Cr-1Mo plate without tungsten belongs on ASTM A387 Grade 22 Class 2.

Dimensional limits for ASTM A1017 Grade 23 follow ASTM A20 / ASME SA-20 unless the purchase order names another table.

Typical thickness tolerance idea for A1017 Gr.23 (A20 / SA-20 reference)

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 A20 / SA-20 unless a tighter class is written. SHH STEEL will not assume a zero-minus extra on A1017GR23 unless the order says so.

A1017 Grade 23 already defines chemistry, the 510–690 MPa table, 220 HB max and N+T. Extra items still have to be written on the purchase order.

Book name. Write A1017 Grade 23, SA-1017 Grade 23, or both.

Heat-treatment route. Write normalized and tempered. Do not accept annealed plate.

Hardness after PWHT. Repeat the 220 HB cap on simulated coupons if the file needs it.

Charpy details. Write temperature, joules, location and orientation if impact is required.

Simulated PWHT. Name hold temperature, hold time and cooling rate on the coupon.

Product analysis. Especially C, Cr, Mo, W, V, Nb, P and S.

Through-thickness / Z-test. Name Z15, Z25 or Z35 when needed.

NDE. A20 / SA-20 ultrasonic extras, ASTM A435 or ASTM A578 as named.

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

Identification and stamping. Heat number, A1017 Grade 23 / SA-1017 Grade 23, thickness and mill logo.

A1017 Grade 23 is the plate for a file that wants T23 / P23 / 2.25Cr-1.6W. It is the wrong plate for 2.25Cr-1Mo. That work is ASTM A387 Grade 22 Class 2. It is the wrong plate for P92. That work is A1017 Grade 92.

SHH STEEL sources ASTM A1017 Grade 23 / SA-1017 Grade 23 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, Yongjin, Tsingshan, TISCO (Taiyuan), Jiuquan (JISCO), Lianzhong, Zhangpu and Baoxin, plus other qualified mills when the size or heat-treatment route 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 stock and rolling thickness: 8 mm, 10 mm, 12 mm, 16 mm, 20 mm, 25 mm, 30 mm, 32 mm, 36 mm, 40 mm, 50 mm, 60 mm, 80 mm, 100 mm, thicker by mill agreement.

Processing: CNC or flame cutting, bevel, flattening, 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; standard rolling / N+T about 45–60 days; simulated PWHT / 3.2 about 2 months.

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Experience on this grade is simple: keep 1.6% tungsten on the certificate and keep Grade 23 away from A387 Grade 22. SHH STEEL as a global steel mill sourcing partner and steel manufacturer & exporter (mill-direct, China origin) prices A1017 Gr.23 from first-line mills, reports 2.25Cr-0.20Mo-1.60W chemistry, records N+T and 220 HB max, and issues 3.1 as standard or 3.2 when specified.

We keep the grade on the order. A1017GR23 is not ASTM A387 Grade 22 Class 2. A1017 Grade 23 is not EN 10028-2 10CrMo9-10. If the drawing says Grade 22, we will not ship Grade 23 and call 2.25Cr enough.

ASTM A1017 Grade 23 Steel Plate is 2.25Cr-0.20Mo-1.60W pressure-vessel plate at 510–690 MPa tensile, 400 MPa yield and 220 HB max. Whether the inquiry says ASTM A1017 Grade 23, A1017 Gr.23, A1017GR23, SA-1017 Grade 23, T23 plate or P23 plate, SHH STEEL as a global steel mill sourcing partner and steel manufacturer & exporter (mill-direct, China origin) supplies plate with Grade 23 chemistry, the Grade 23 tensile and hardness tables, recorded N+T delivery, and EN 10204 3.1 or 3.2 certification.

SHH STEEL supplies ASTM A1017 Grade 23 / A1017 Gr.23 2.25Cr-1.6W Vessel Plate to the USA, Mexico, South America, Europe, the Middle East, Africa and Asia for work that actually names this grade.

Contact SHH STEEL for mill rolling, stock inquiry, cutting, bevel, 3.2 inspection or a worldwide quotation.

ASTM A1017 Grade 23 Steel Plate, A1017 Gr.23, A1017GR23, T23 plate, P23 plate, 2.25Cr-1.6W vessel plate, A1017 Gr.23 supplier, SHH STEEL