ASME SA202 Grade A Steel Plate | SA202 Gr.A Cr-Mn-Si Vessel Plate supplier

ASME SA202 Grade A, also searched as SA202 Gr.A, SA202GR A, SA-202 Grade A and A202 Grade A, is the lower-strength grade in ASME SA-202 / SA-202M. The book is chromium-manganese-silicon alloy plate for welded boilers and pressure vessels. This page is not SA202 Grade B. Grade B is 585–760 MPa. This page is not ASME SA204 Grade A. SA-204 is molybdenum plate. This page is not ASME SA203 Grade A. SA-203 is nickel plate. This page is not ASME SA515 Grade 60. SA-515 is carbon high-temp plate.

Tensile is 75–95 ksi / 515–655 MPa. Yield is 45 ksi / 310 MPa min. Usual practice limits thickness to about 50 mm / 2 in. Delivery is normally as-rolled. Normalized or stress-relieved plate is supplied when ordered. 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 ASME SA-202 / SA-20, and ship it to fabricators in the USA, Europe, Middle East, Southeast Asia, Africa and South America.

If a drawing says SA202 Grade B, we will not ship Grade A and call 515 enough. If a drawing says ASTM A202 Grade A, we can discuss dual marking only when the heat meets both books. For ASME Code work the name on the certificate should be SA-202 Grade A.

This plate sits in pressure vessel steel plates. Mo sisters belong on ASME SA204. Nickel sisters belong on ASME SA203. Carbon high-temp sisters belong on ASME SA515.

Heat analysis and product analysis follow ASME SA-202 Table 1.

Heat Analysis and Product Analysis — ASME SA202 Grade A

Grade A and Grade B share the same Mn, Si and Cr windows. The difference on chemistry is carbon: Grade A is 0.17% max, Grade B is 0.25% max. This is not a 0.5Mo heat. If the file wants molybdenum, the book is ASME SA204 Grade A. SHH STEEL prints heat analysis on every certificate and product analysis when ordered. Density is 7.85 g/cm³.

Buyers search SA202 Gr.A mechanical properties, SA202 Grade A yield and SA202GR A tensile.

Tensile and Yield — ASME SA202 Grade A

Do not quote 325 MPa yield on Grade A. That number belongs to Grade B. Do not treat 515–655 MPa as permission to stamp ASME SA515 Grade 70 or EN 10028-2 P295GH without checking both books.

Buyers pick SA202 Gr.A when an ASME file wants Cr-Mn-Si plate at 515–655 MPa. Search phrases such as SA202 Grade A, SA202GR A and SA-202 Grade A all point here.

It is not a substitute for ASME SA204 Grade A. That grade is molybdenum. It is not a substitute for ASME SA203 Grade A. That grade is nickel. It is not a substitute for EN 10028-2 16Mo3. Dual marking is possible only when both books are met.

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

SA202 Grade A is killed Cr-Mn-Si alloy vessel plate. Treat welding as production welding, and as ASME Section VIII / PED welding when the equipment is a vessel.

Qualify to the applicable code. Consumables must match the 515–655 MPa band and the Cr-Mn-Si chemistry. A carbon procedure written for ASME SA516 Grade 70 is a comparison only. A Mo procedure written for ASME SA204 Grade B is the wrong family. Preheat and interpass must stay inside the qualified WPS. The fabricator owns the WPS. SHH STEEL can share mill heat data for that review.

Usual delivery from SHH STEEL is as-rolled ASME SA202 Grade A. The specification allows the plate to be ordered normalized, stress-relieved, or both.

This is not QT from EN 10028-6 P355Q. This is not the 50 mm normalizing rule from JIS G3103 carbon grades.

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 ASME SA-202 Grade A; heat number; heat analysis; product analysis when ordered; tensile to Table 2; delivery condition. Certificates may be EN 10204 3.1 or EN 10204 3.2.

Usual supply range from SHH STEEL for SA202 Gr.A Cr-Mn-Si vessel plate:

• Thickness: commonly 6 mm – 50 mm, thicker only by mill agreement
• Width: 1500 mm – 4000 mm
• Length: 3000 mm – 12000 mm

Current practice in the specification normally limits thickness to about 2 in. [50 mm]. Mo plate belongs on ASME SA204 Grade A. Nickel plate belongs on ASME SA203 Grade A.

Dimensional limits for ASME SA202 Grade A follow ASME SA-20 unless the purchase order names another table. Do not apply ASTM A36 structural tolerances to a Cr-Mn-Si vessel plate without writing them.

Typical thickness tolerance idea for SA202 Gr.A (SA-20 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 SA-20 unless a tighter class 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 a zero-minus extra on SA202 Gr.A unless the order says so.

ASME SA-202 Grade A already defines chemistry and tensile. Extra items still have to be written on the purchase order. SHH STEEL will not assume them from the grade name alone.

Heat treatment extras. Write normalized, stress-relieved, or both when as-rolled is not enough.

Charpy details. SA202 Grade A does not assume a default impact temperature. Write temperature, joules, location and orientation if impact is required.

Simulated PWHT. When the vessel will be stress-relieved, name hold temperature, hold time and cooling rate on the coupon.

Product analysis. Especially C, Mn, Si and Cr. Grade A carbon must stay at 0.17% max.

Through-thickness / Z-test. Name Z15, Z25 or Z35 when the plate will be welded in the thickness direction.

NDE. SA-20 ultrasonic extras, ASTM A435 or ASTM A578 as named. Write scanning extent and acceptance class.

Hardness. If the destination file caps hardness after rolling or after simulated PWHT, write the max HB and the test location.

HIC / SSC / NACE. Only when the equipment is sour service. SA202 Grade A is not automatically NACE MR0175 / ISO 15156.

Third-party witness. EN 10204 3.2 with SGS, TÜV, BV, ABS, CCS, DNV or the inspector named. Hold points for chemistry, tensile and UT should be listed on the ITP.

Identification and stamping. Heat number, grade SA-202 Grade A / SA202 Gr.A, thickness and mill logo on each plate. Transfer marks after cutting if the plate will be cut before shipment.

SA202 Grade A is the plate for an ASME file that wants Cr-Mn-Si alloy at 515–655 MPa. It is the wrong plate for 0.5Mo service. That work is ASME SA204 Grade A. It is the wrong plate for nickel low-temp service. That work is ASME SA203 Grade A.

SHH STEEL sources ASME SA202 Grade A 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, 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 about 45–60 days; normalizing / simulated PWHT / 3.2 about 2 months.

Experience on this grade is simple: keep Grade A and Grade B apart, and keep SA-202 away from SA-203 and SA-204. SHH STEEL as a global steel mill sourcing partner and steel manufacturer & exporter (mill-direct, China origin) prices SA202 Gr.A from first-line mills, reports Cr-Mn-Si chemistry, records as-rolled or ordered heat treatment, and issues 3.1 as standard or 3.2 when specified.

We keep the grade on the order. SA202 Grade A is not SA202 Grade B. SA202 Grade A is not ASME SA204 Grade A. SA202 Grade A is not ASME SA515 Grade 60. If the drawing says Grade B, we will not ship Grade A and call 515 close.

ASME SA202 Grade A Steel Plate is Cr-Mn-Si alloy pressure-vessel plate at 515–655 MPa tensile and 310 MPa yield. Whether the inquiry says ASME SA202 Grade A, SA202 Gr.A, SA202GR A, SA-202 Grade A or A202 Grade A, SHH STEEL as a global steel mill sourcing partner and steel manufacturer & exporter (mill-direct, China origin) supplies plate with SA202 Grade A chemistry, recorded delivery condition, and EN 10204 3.1 or 3.2 certification.

SHH STEEL supplies ASME SA202 Grade A / SA202 Gr.A Cr-Mn-Si 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 SA202 Grade A Steel Plate, SA202 Gr.A Cr-Mn-Si vessel plate, SA202GR A, SA202 Gr.A supplier, SHH STEEL