ASTM A387 Steel Plate Supplier | SA387 Gr11, Gr22, Gr91

ASTM A387 Steel Plate Supplier with Stock and Fast Delivery

CJM Steel es una empresa ASTM A387 steel plate supplier providing SA387 Gr11, Gr22, and Gr91 alloy steel plates for pressure vessels, boilers, heat exchangers, and high-temperature industrial applications.

We supply ASTM A387 Cr-Mo steel plates according to ASTM and ASME standards, with stable mill sources, flexible MOQ, customized processing, and export experience for global distributors, EPC contractors, and fabrication companies.

Nuestra ASTM A387 alloy steel plates are available in different grades, thicknesses, and dimensions, with cutting, beveling, drilling, inspection, and mill documentation available according to project requirements.

ASTM A387 Steel Plate Supply Range and Stock Availability

Suministros CJM ASTM A387 / ASME SA387 Cr-Mo alloy steel plates en Gr11, Gr22, and Gr91. Standard and project-based supply can be arranged according to grade, thickness, dimensions, quantity, and delivery requirements.

Artículo	Supply Options
Estándar	ASTM A387 / ASME SA387
Tipo de acero	Chromium-Molybdenum (Cr-Mo) alloy steel plate
Grados disponibles	Gr11, Gr22, Gr91
Espesor	6–150 mm
Anchura	Up to 3500 mm
Longitud	Hasta 12000 mm
Tratamiento térmico	Normalized / Quenched & Tempered
Tratamiento	Cutting, beveling, drilling
Inspección	Third-party inspection available
Certificación	Mill Test Certificate, EN 10204 3.1

ASTM A387 plates may be specified by grade and class. If Class 1 or Class 2 is required, the applicable class should be stated with the grade so the required mechanical and testing requirements can be confirmed.

For ASTM A387 steel plate prices, stock availability, and technical specifications, contact CJM Steel with your required grade, size, quantity, and destination.

SA387 Grade 11 Steel Plate Supplier

SA387 Grade 11 steel plate, also specified as ASTM A387 Grade 11 steel plate, is a Cr-Mo alloy steel plate for pressure vessel and elevated-temperature equipment. CJM supplies Grade 11 plates in customized dimensions, with cutting, processing, inspection, and mill documentation available according to project requirements.

Typical uses:

• Calderas
• Refinery equipment
• Intercambiadores de calor

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SA387 Grade 22 Steel Plate Supplier

SA387 Grade 22 steel plate, also specified as ASTM A387 Grade 22 steel plate, is a Cr-Mo alloy steel plate used for pressure vessels and equipment requiring elevated-temperature service. As an SA387 Grade 22 steel plate supplier, CJM supports customized sizes, cutting, processing, inspection, and complete mill documentation for project orders.

For buyers sourcing SA387 Grade 22 steel plate, CJM can support stock or project-based supply according to the required thickness, dimensions, quantity, and delivery schedule.

Typical uses:

• Recipientes de alta presión
• Petrochemical plants
• Thermal power systems

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SA387 Grade 91 Steel Plate Supplier

SA387 Grade 91 steel plate is a high-alloy Cr-Mo steel plate designed for demanding high-temperature pressure equipment. CJM supplies Grade 91 according to required specifications, with processing, inspection, and mill documentation available for project requirements.

Typical uses:

• Supercritical boilers
• Power generation systems
• Advanced pressure vessels

Composición química

Elemento	Grado 11 (%)	Grado 12 (%)	Grado 22 (%)	Grado 91 (%)
Carbono (C)	0.05-0.15	0.05-0.15	0.07-0.15	0.08-0.12
Cromo (Cr)	0.90-1.20	0.90-1.20	1.90-2.60	8.00-9.50
Molibdeno (Mo)	0.44-0.65	0.44-0.65	0.87-1.10	0.85-1.05

Detailed composition analysis can be provided upon request or technical consultation.

Exact requirements should be confirmed against the applicable ASTM/ASME specification and ordered grade.

Propiedades mecánicas

Grado	Límite elástico (MPa)	Resistencia a la tracción (MPa)	Alargamiento (%)
Grado 11	≥275	415-565	≥22
Grado 12	≥275	415-565	≥22
Grado 22	≥275	415-565	≥22
Grado 91	≥415	585-735	≥20

Why Choose Us as Your ASTM A387 Steel Plate Supplier

Elegir bien ASTM A387 steel plate supplier is important for pressure vessel and high-temperature equipment projects.

• Stable supply of ASTM A387 Gr11 and Gr22 steel plates from reliable mill sources
• Fast delivery from available stock for urgent project requirements
• Flexible processing services including cutting, beveling, and custom sizes
• Full documentation support including Mill Test Certificate (EN 10204 3.1)
• Third-party inspection available upon request
• Export experience in placas de acero para recipientes a presión for global markets

We focus on reliable supply and long-term cooperation with global buyers requiring ASTM A387 alloy steel plates.

ASTM A387 Steel Plate Packaging and Shipping

CJM prepares ASTM A387 steel plates according to the shipping method and buyer requirements.

• Atado con flejes de acero
• Envoltura impermeable y protección de bordes
• Palés de madera o según la petición del comprador
• Envío en contenedor o granelero

ASTM A387 vs ASTM A516 Steel Plate Comparison

Artículo	ASTM A516	ASTM A387
Tipo	Acero al carbono	Alloy steel (Cr-Mo)
Resistencia a la temperatura	Medio	Alta
Resistencia a la corrosión	Estándar	Mejorado
Coste	Baja	Más alto
Uso típico	Storage tanks	Refinery & high-temp vessels

Selection Suggestion:

• Elija A516 for standard pressure vessel applications with cost sensitivity
• Elija A387 plate when high temperature, hydrogen service, or corrosion resistance is required

Not sure the difference between A387 and A516 ? See our detailed selection guidance.

Request a Quote for ASTM A387 Steel Plate

Contact CJM for pricing, stock availability, and technical support.
Send your inquiry with grade (Gr11 / Gr22 / Gr91), size, quantity, and destination to receive a detailed quotation.

FAQ – ASTM A387 Steel Plate Supplier

Q1. What is the difference between ASTM A387 Class 1 and Class 2?

Class 1 and Class 2 specify different requirements within applicable A387 grades. When ordering, the required class should be stated together with the grade so the applicable requirements can be confirmed.

Q2. What grades of ASTM A387 steel plate do you supply?

We supply common ASTM A387 grades including SA387 Grade 11, Grade 22, and Grade 91. Different grades are selected according to temperature requirements, pressure conditions, and application environments.

Q3. Do you have ASTM A387 steel plate in stock?

Yes, we keep ready stock for standard sizes of Gr11 and Gr22. Gr91 is available upon request.

Q4. Can ASTM A387 steel plate be cut or processed?

Yes, we offer cutting, beveling, drilling, and other processing services based on project requirements.

Q5. How can I get an ASTM A387 steel plate quotation?

You can send us your required grade, thickness, size, and quantity. We will provide price and delivery details within 24 hours.

Q6. Is ASTM A387 the same as ASME SA387?

ASTM A387 is the ASTM specification for pressure vessel alloy steel plates, while ASME SA387 is the corresponding ASME material specification used for pressure vessel applications. The applicable specification should be confirmed according to the project or code requirements.

P: ¿Cuáles son los principales productos/servicios de su empresa?

R: Somos fabricantes profesionales de productos de acero al carbono, acero aleado y perfiles. Tenemos la experiencia del negocio de acero por más de 10 años y nuestros productos se exportan a Oriente Medio, Suramérica, Asia sudoriental, África, Asia del sur y del este etc.

P: ¿Puedo visitar su fábrica?

R: Por supuesto, invitamos a clientes de todo el mundo a visitar nuestra fábrica.

P: ¿Cuáles son sus condiciones de pago?

R: 30% T/T depósito y 70% saldo antes del envío.

P: ¿Cuál es su plazo de entrega?

R: Para las existencias, podríamos transportar las mercancías al puerto de carga dentro de los 7 días después de recibir el depósito; Para la producción, por lo general toma alrededor de 15-30 días después de recibir el depósito.

P: ¿Proporcionan muestras? ¿Son gratuitas o de pago?

R: Las muestras están disponibles de forma gratuita, pero el flete de mensajería será cubierto por la cuenta del cliente.

P: ¿Aceptan la inspección de terceros?

R: Sí, aceptamos inspecciones de terceros.

P: ¿Por qué debería comprarles a ustedes y no a otros proveedores?

R: Integrando los recursos superiores de la industria siderúrgica de China, proporcionamos a los clientes productos de acero de alta calidad a precios preferenciales, y podemos garantizar que las mercancías se entregan a los clientes a tiempo.

P: ¿Cómo garantizan la calidad?

A: Siempre una muestra de pre-producción antes de la producción en masa;Siempre 100% inspeccionado antes del envío