12MnNiVR Steel Plate Applications & Ordering Guide

12MnNiVR (GB 19189 quenched-and-tempered tank plate) is specified for industrial fabrications where the drawing or material list names this grade. This applications page explains where the grade is used, what service conditions drive selection, and which certificate details belong on the purchase order. Gangsteel supplies 12MnNiVR (GB 19189 quenched-and-tempered tank plate) with EN 10204 mill test certificates.

Typical Applications and Service Conditions

12MnNiVR (GB 19189 quenched-and-tempered tank plate) plate is ordered for pressure equipment, process vessels, heat-exchanger related fabrications, structural members under the governing code, and project packages that call the grade by name. Match the mill test certificate grade mark to the calculation sheet; do not treat near-equivalents as automatic substitutes.

Service drivers include the design temperature and pressure of the governing code (ASME, EN/PED, class society, or project specification), weld procedure qualification needs, toughness or creep allowables where applicable, and inspection scope. Delivery condition Quenched and tempered should be stated explicitly on the purchase order.

Industry Use Cases

Pressure equipment and process: shells, heads, and related platework when drawings name 12MnNiVR (GB 19189 quenched-and-tempered tank plate). Power and energy: boiler and heat-recovery fabrications under the ordered edition. Marine / offshore (when classed): only when the society material list names this exact grade stamp. Always keep heat-number traceability on cut pieces.

Chemical Composition - Supporting Data (12MnNiVR (GB 19189 quenched-and-tempered tank plate))

Heat analysis for 12MnNiVR under GB 19189. Designed for large crude-oil storage tanks.

Element / rule	Requirement
C, max	0.15
Si	0.15-0.40
Mn	1.20-1.60
P, max	0.020
S, max	0.010
Cu, max	0.25
Ni	0.15-0.40
Cr, max	0.30
Mo, max	0.30
V	0.02-0.06
B, max	0.0020
Pcm, max	0.25

Mechanical Properties - Supporting Data (12MnNiVR (GB 19189 quenched-and-tempered tank plate))

Confirm thickness, specimen orientation, and any supplementary impact, UT, or hardness requirements on the PO.

Property	Requirement
Yield / Rp0.2, min (10-60 mm)	490 MPa
Tensile Rm (10-60 mm)	610-730 MPa
Elongation A, min	17%
Impact (-20 deg C)	>=80 J (Charpy)
Delivery	Quenched and tempered

Related / Near-Equivalent Grades

Near-equivalents are for cross-reference only. They are not automatic code substitutes. Substitution requires engineer approval and matching certificate scope.

System	Grade	Note
JIS	SPV490Q (approx.)	Tank Q&T family - confirm
ASTM	A537 Class 2 / A841 (approx.)	Not identical - confirm tank code
GB	07MnNiMoVDR / 08MnNiVDR	Related Chinese tank QT grades

Frequently Asked Questions

Where is 12MnNiVR (GB 19189 quenched-and-tempered tank plate) typically applied?

12MnNiVR (GB 19189 quenched-and-tempered tank plate) is applied where design documents, class material lists, or purchaser specs name this grade for pressure, process, structural, or marine fabrications as applicable. Match the MTC marking to the drawing.

What service conditions drive selection of 12MnNiVR (GB 19189 quenched-and-tempered tank plate)?

Design temperature and pressure, toughness or creep allowables, weldability, corrosion or process media, and the governing code edition drive selection. Delivery condition Quenched and tempered must align with the ordered specification.

Can a near-equivalent replace 12MnNiVR (GB 19189 quenched-and-tempered tank plate) on an applications drawing?

Not without redesign and written approval. Near-equivalents differ in chemistry, heat treatment, impact temperature, or product form. Commercial swaps create non-conformance when the dossier names 12MnNiVR (GB 19189 quenched-and-tempered tank plate).

What fabrication notes matter for 12MnNiVR (GB 19189 quenched-and-tempered tank plate)?

Use approved WPS/PQR packages for the thickness and filler, control heat input, and preserve heat-number traceability on cut pieces. State any supplementary UT, PMI, or impact tests on the purchase order.

What certificate and marking should an applications PO demand?

EN 10204 3.1 is standard; 3.2 when a purchaser-appointed inspector witnesses tests. The MTC should show heat analysis, tensile results, delivery condition, and heat number aligned with 12MnNiVR (GB 19189 quenched-and-tempered tank plate).

How should I RFQ 12MnNiVR (GB 19189 quenched-and-tempered tank plate) plate from Gangsteel for a project?

Send 12MnNiVR (GB 19189 quenched-and-tempered tank plate), thickness x width x length (or nesting list), quantity, delivery condition, optional NDT/PMI, certificate type, destination, and any dual-mark needs. Note the end use when special flatness or cut-to-size packaging is required.

Ordering and Mill Certificates

State grade 12MnNiVR (GB 19189 quenched-and-tempered tank plate), dimensions, quantity, delivery condition, optional NDT/PMI, and certificate (EN 10204 3.1 standard; 3.2 when third-party inspection is ordered). Gangsteel supplies export plate and related products with mill test certificates. Contact Gangsteel for stock and mill production RFQs.