EN 10028-6 P460Q Steel Plate | P460Q QT Vessel Plate supplier

P460Q is the room-temperature quenched-and-tempered grade in the P460 family of EN 10028-6. Buyers search EN 10028-6 P460Q, P460Q steel plate, 1.8879, P460Q QT vessel plate and P460Q supplier. The letter Q means quenched and tempered fine-grain plate. This page is not P460QH. QH is the elevated-temperature quality. This page is not P460QL1. QL1 is −40 °C. This page is not P460QL2. QL2 is −60 °C. This page is not EN 10028-5 P460M. M is TMCP. This page is not EN 10028-3 P460NH. NH is normalized. This page is not S460Q. S460Q is EN 10025-6 structural QT steel.

Yield is 460 MPa at ≤50 mm. Tensile is 570–720 MPa. Steel number is 1.8879. Delivery is QT (Q), not +N and not M. 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 the certificate against EN 10028-6, and ship it to fabricators in the USA, Europe, Middle East, Southeast Asia, Africa and South America.

If a drawing says P460QL1, we will not ship P460Q and call 460 enough. If a drawing says P355Q, we will not ship P460Q and call stronger automatically acceptable. Dual marking with Q460R steel plate is possible only when both books are fully met.

This plate sits in pressure vessel steel plates and carbon steel plates. TMCP sisters belong on EN 10028-5. Normalized sisters belong on EN 10028-3. Structural QT belongs on EN 10025-6. ASME QT vessel comparisons belong on ASME SA517.

Cast analysis follows EN 10028-6. Product analysis follows EN 10028-1 when ordered.

Cast Analysis and Product Analysis — EN 10028-6 P460Q (1.8879)

460 MPa after QT comes from quench and temper plus micro-alloying, not from a high-carbon melt. SHH STEEL prints heat analysis on every certificate and product analysis when ordered. Density is 7.85 g/cm³.

Buyers search P460Q mechanical properties, P460Q yield strength and P460Q QT. Yield still falls with thickness.

Tensile and Yield — EN 10028-6 P460Q

Elongation is typically 17% min on thinner plate. Room-temperature quality Q does not automatically include −40 °C Charpy. If the file needs −40 °C, the grade name is P460QL1. If the file needs −60 °C, the grade name is P460QL2. If the file needs elevated-temperature proof strength, the grade name is P460QH.

Do not quote 460 MPa yield on a 120 mm plate. Do not treat 570–720 MPa tensile as permission to stamp Q460R steel plate or SA537 Class 2 without checking both books.

Buyers pick P460Q when a PED file wants 460 MPa quenched-and-tempered plate and does not name QL impact or QH elevated-temperature proof. Search phrases such as P460Q QT, P460Q boiler plate and 1.8879 steel plate all point here.

It is not a substitute for EN 10028-5 P460ML1. That grade is TMCP −40 °C. It is not a substitute for SA517 Grade Q. That grade is a higher QT class. An ASME QT file should name SA-517. Dual marking is possible only when chemistry, tensile, impact and delivery all fit.

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

P460Q is killed QT fine-grain C-Mn vessel plate at 570–720 MPa tensile. Treat welding as production welding, and as PED / ASME Code welding when the equipment is a vessel.

Qualify to the applicable code. Consumables must match the 460 MPa / 570–720 MPa band. A P355Q procedure is the previous family. A procedure written for SA516 Grade 70 may be light on strength. Preheat and interpass must stay inside the qualified window so the QT structure is not damaged. The fabricator owns the WPS. SHH STEEL can share mill heat data for that review.

Usual delivery from SHH STEEL is quenched and tempered EN 10028-6 P460Q (Q). This is not +N from EN 10028-3 and not M from EN 10028-5.

If the vessel will see PWHT, say so. QT properties can move after a long stress-relief cycle. 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 EN 10028-6 P460Q; 1.8879; heat number; cast analysis; product analysis when ordered; tensile to the correct thickness column; Q / QT; impact only when ordered. Certificates may be EN 10204 3.1 or EN 10204 3.2.

Usual supply range from SHH STEEL for P460Q QT vessel plate:

• Thickness: commonly 8 mm – 150 mm, thicker by mill agreement
• Width: 1500 mm – 4000 mm
• Length: 3000 mm – 12000 mm

TMCP 460 plate belongs on EN 10028-5 P460M. Structural QT belongs on EN 10025-6.

Dimensional limits for EN 10028-6 P460Q follow EN 10028-1 and EN 10029 unless the purchase order names another table. Class A is the usual mill default for P460Q QT vessel plate. Class B, Class C or Class D is supplied only when written. Do not apply ASTM A36 structural tolerances to a PED 460 MPa QT plate without writing them. When dual-named against SA517 Grade F, write whether EN 10029 or SA-20 governs the minus on thickness.

Typical thickness tolerance idea for P460Q (EN 10029 Class A, reference)

Width on 1500–4000 mm plate is commonly held to about ±20–25 mm unless the mill quote names a tighter extra. Length on 3000–12000 mm plate is commonly held to about +50 / 0 mm or ±25 mm by mill practice. Flatness follows EN 10029 Class N unless Class S is written. Edge condition is mill edge or cut edge as ordered. If the vessel calculation used minimum thickness after corrosion, write the allowed minus on the RFQ. SHH STEEL will not assume Class B or a zero-minus extra on P460Q unless the order says so.

Charpy details. P460Q does not assume −40 °C. Write temperature and orientation if impact is required.

Product analysis. Add this when the destination file wants finished-plate chemistry.

Simulated PWHT. When the equipment will be stress-relieved.

NDE. EN 10160 or the named UT class.

Third-party. EN 10204 3.2 when written.

P460Q is the plate for a file that wants 460 MPa QT steel and does not name QL impact. It is the wrong plate for a winter tank at −40 °C. That work is P460QL1. It is the wrong plate for a TMCP file. That work is EN 10028-5 P460M.

SHH STEEL sources EN 10028-6 P460Q 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 QT 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: 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 EN 10160 or 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 QT about 45–60 days; simulated PWHT / 3.2 about 2 months.

Experience on this grade is simple: keep the letter after P460. Q, QH, QL1 and QL2 are four different purchase orders, and none of them is P460M or P460NH. SHH STEEL as a global steel mill sourcing partner and steel manufacturer & exporter (mill-direct, China origin) prices P460Q from first-line mills, reports 1.8879 chemistry, records QT, and issues 3.1 as standard or 3.2 when specified.

We keep the grade on the order. P460Q is not P355Q. P460Q is not EN 10028-5 P460M. P460Q is not P460QL1. P460Q is not Q345R steel plate. If the drawing says P460QL2, we will not ship P460Q and call QT close.

EN 10028-6 P460Q Steel Plate is European quenched-and-tempered fine-grain pressure-vessel plate, steel number 1.8879, at the 460 MPa yield step and 570–720 MPa tensile at ≤50 mm. Whether the inquiry says EN 10028-6 P460Q, 1.8879, P460Q QT Vessel Plate or P460Q supplier, SHH STEEL as a global steel mill sourcing partner and steel manufacturer & exporter (mill-direct, China origin) supplies plate with P460Q chemistry, recorded QT, and EN 10204 3.1 or 3.2 certification.

SHH STEEL supplies EN 10028-6 P460Q QT 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.

EN 10028-6 P460Q Steel Plate, P460Q QT vessel plate, 1.8879, P460Q supplier, SHH STEEL