ASME SA1017 Grade 911 Steel Plate | SA-1017 Gr.911 9Cr-1Mo-W Vessel Plate

ASME SA1017 Grade 911, also searched as SA-1017 Gr.911, SA1017GR911, SA-1017M Grade 911, SA1017-911, ASTM A1017 Grade 911, P911 plate, A387 Gr.911 Cl.2 and SA387 Grade 911 Class 2, is the Section II, Part A name for 9Cr-1Mo-1W-V-Nb pressure-vessel plate. SA-1017/SA-1017M is identical with ASTM A1017/A1017M for the ASTM edition listed in that Code year. General requirements follow SA-20 / A20.

Grade 911 used to sit in A387 / SA-387. Current A387 says that grade is now A1017. Inquiries that still write ASTM A387 Grade 911 Class 2 or ASME SA387 Grade 911 Class 2 are buying SA-1017 Grade 911. The certificate should print SA-1017 Grade 911 when the purchase order uses the ASME name.

This page is not ASTM A387 Grade 91 Class 2. Grade 91 is 9Cr-1Mo-V-Nb without the 0.90–1.10% tungsten window. This page is not ASME SA387 Grade 91 Class 2. This page is not SA-1017 Grade 92 and not ASTM A387 Grade 9 Class 2.

Tensile is 90–120 ksi / 620–840 MPa. Yield is 64 ksi / 440 MPa min. Elongation is 18% in 2 in. Delivery is normalized and tempered. Typical austenitize is 1900–1975 °F / 1040–1080 °C. Typical temper for Grade 911 is 1365–1435 °F / 740–780 °C. SA-1017 does not split Grade 911 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, Nb and N on the heat analysis, record N+T on the certificate, and ship plate to fabricators in the USA, Europe, Middle East, Southeast Asia, Africa and South America.

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

European 9Cr comparison belongs on EN 10028-2, especially EN 10028-2 X10CrMoVNb9-1. That grade is P91, not 911.

SA-1017 Grade 911 uses the same chemistry table as A1017 Grade 911. Tungsten is the first check against Grade 91.

Heat Analysis and Product Analysis — ASME SA-1017 Grade 911

If tungsten is missing, the heat is ASTM A387 Grade 91 Class 2, not SA-1017 Grade 911. If tungsten is near 1.75% and molybdenum is only 0.30–0.60%, the heat is Grade 92. SHH STEEL prints heat analysis on every certificate. Density is 7.85 g/cm³.

Buyers search SA-1017 Gr.911 mechanical properties, SA1017GR911 yield, P911 tensile and SA387 Grade 911 Class 2 tensile.

Tensile and Yield — ASME SA-1017 Grade 911

ASTM A387 Grade 91 Class 2 is 585–760 MPa / 415 MPa. Do not quote those numbers on a 911 order. Grade 92 uses the same 620–840 MPa / 440 MPa band, with 20% elongation. Grade 23 is 510–690 MPa / 400 MPa. Grade 122 is 620 MPa min / 400 MPa.

SA-1017 Grade 911 and A1017 Grade 911 are the same chemistry and the same tensile table. They are not automatic substitutes for P91.

In the United States the two official current names are ASME SA-1017 Grade 911 and ASTM A1017 Grade 911. Older drawings still say ASME SA387 Grade 911 Class 2 or ASTM A387 Grade 911 Class 2. ASTM A387 Grade 91 Class 2 is P91.

In Europe there is no daily EN 10028-2 twin written as 911. EN 10028-2 X10CrMoVNb9-1 is P91. See EN 10028-2.

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

Buyers pick SA-1017 Gr.911 when a Code list, an EPC specification or a mill requisition writes the ASME name. Search phrases such as SA1017GR911, SA-1017 Grade 911, SA-1017M Grade 911, P911 plate and SA387 Grade 911 Class 2 all point here.

It is not a substitute for ASME SA387 Grade 91 Class 2. That grade has no tungsten. It is not a substitute for ASTM A387 Grade 22 Class 2. That grade is 2.25Cr-1Mo.

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

SA-1017 Grade 911 is killed 9Cr-1Mo-1W-V-Nb vessel plate at 620–840 MPa. Treat welding as production welding, and as ASME Section I / Section VIII welding when the equipment is Code work.

Qualify to Section IX and the construction section named on the job. Consumables must match a P911 family. A procedure written for ASTM A387 Grade 91 Class 2 is P91, not P911. A procedure written for ASTM A387 Grade 9 Class 2 is 9Cr-1Mo without W/V/Nb. Preheat, interpass and PWHT must stay inside the qualified WPS. Grade 911 temper is already 740–780 °C; PWHT must not walk into the wrong side of Ac1. The fabricator owns the WPS. SHH STEEL can share mill heat data for that review.

Usual delivery from SHH STEEL for SA-1017 Gr.911 is normalized and tempered.

• Austenitize: 1040–1080 °C (1900–1975 °F)
• Temper for Grade 911: 740–780 °C (1365–1435 °F)

Grades 23, 92 and 122 in the same book temper at 730–800 °C. Do not use that wider band on 911 if the order cites the 911 temper table.

Annealed plate cannot be SA-1017 Grade 911.

If the vessel will see PWHT, say so. Simulated PWHT on test coupons is worth naming on P911 work. 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 ASME SA-1017 Grade 911 and/or ASTM A1017 Grade 911 as the order named; heat number; heat analysis including W, V, Nb and N; tensile to the 911 table; heat-treatment route and temperatures. Certificates may be EN 10204 3.1 or EN 10204 3.2. When the contract cites a Code year, SHH STEEL checks that the ASTM edition on the MTC is acceptable to that Code year.

Usual supply range from SHH STEEL for SA-1017 Gr.911 9Cr-1Mo-W 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 911 tensile table. P91 plate belongs on ASTM A387 Grade 91 Class 2. 9Cr-1Mo plate belongs on ASTM A387 Grade 9 Class 2.

Dimensional limits for ASME SA-1017 Grade 911 follow ASME SA-20 / ASTM A20 unless the purchase order names another table.

Typical thickness tolerance idea for SA-1017 Gr.911 (SA-20 / A20 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 SA-20 / A20 unless a tighter class is written. SHH STEEL will not assume a zero-minus extra on SA1017GR911 unless the order says so.

SA-1017 Grade 911 already defines chemistry, the 620–840 MPa table and N+T. Extra items still have to be written on the purchase order.

Book name. Write SA-1017 Grade 911, A1017 Grade 911, or both. If the drawing still says SA387 Grade 911 Class 2, say how the mill should print the certificate.

Code year. Name the BPVC edition so the ASTM revision on the MTC can be checked.

Heat-treatment route. Write normalized and tempered with the 911 temper band. Do not accept annealed plate.

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, N, P and S.

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

NDE. SA-20 / A20 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, SA-1017 Grade 911 / A1017 Grade 911, thickness and mill logo.

SA-1017 Grade 911 is the plate for a file that wants the ASME name on P911 / 9Cr-1Mo-1W-V-Nb. It is the wrong plate for P91. That work is ASME SA387 Grade 91 Class 2. It is the wrong plate for 2.25Cr-1Mo. That work is ASTM A387 Grade 22 Class 2.

SHH STEEL sources ASME SA-1017 Grade 911 / ASTM A1017 Grade 911 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.

Browse more product families on the products index.

Experience on this grade is simple: print SA-1017 when the order writes SA-1017, keep tungsten on the certificate, and keep 911 away from 91. SHH STEEL as a global steel mill sourcing partner and steel manufacturer & exporter (mill-direct, China origin) prices SA-1017 Gr.911 from first-line mills, reports 9Cr-1Mo-1W-V-Nb chemistry, records N+T in the 911 temper band, and issues 3.1 as standard or 3.2 when specified.

We keep the grade on the order. SA1017GR911 is not ASME SA387 Grade 91 Class 2. SA-1017 Grade 911 is not EN 10028-2 X10CrMoVNb9-1. If the drawing says Grade 91, we will not ship 911 and call 9Cr enough.

ASME SA1017 Grade 911 Steel Plate is 9Cr-1Mo-1W-V-Nb pressure-vessel plate at 620–840 MPa tensile and 440 MPa yield, identical with ASTM A1017 Grade 911. Whether the inquiry says ASME SA1017 Grade 911, SA-1017 Gr.911, SA1017GR911, SA-1017M Grade 911, A1017 Grade 911, P911, A387 Gr.911 Cl.2 or SA387 Grade 911 Class 2, SHH STEEL as a global steel mill sourcing partner and steel manufacturer & exporter (mill-direct, China origin) supplies plate with 911 chemistry, the 911 tensile table, recorded N+T delivery, and EN 10204 3.1 or 3.2 certification.

SHH STEEL supplies ASME SA1017 Grade 911 / SA-1017 Gr.911 9Cr-1Mo-W 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.

ASME SA1017 Grade 911 Steel Plate, SA-1017 Gr.911, SA1017GR911, P911 plate, 9Cr-1Mo-W vessel plate, SA-1017 Gr.911 supplier, SHH STEEL