CJM Steel supplies GB/T8162 seamless steel pipes with stable quality and flexible production support for global buyers. Available grades include 10#, 20#, 45#, and 16Mn (Q345/Q355), with customized dimensions, cutting, machining, and export documentation services available for mechanical, engineering, and industrial projects.
6mm – 630mm, including large diameter seamless pipes
Espesor de pared
1mm – 50mm, including thick wall steel pipes
Longitud
5.8m, 6m, 12m or customized
Proceso de fabricación
Hot Rolled, Cold Drawn
Superficie
Black, Bright, Polished
Servicios de procesamiento
Cutting, CNC Machining, Heat Treatment, Polishing
Inspection & Documents
Mill Test Certificate (EN 10204 3.1 available)
Personalización
Dimensions, length and processing according to drawings and project requirements
Large diameter and thick wall GB/T8162 seamless steel pipes are available for demanding mechanical and structural applications, with customized processing and export supply support.
GB/T8162 Seamless Steel Pipe Grades
CJM Steel supplies several commonly requested GB/T8162 steel pipe grades for different mechanical and structural applications.
20# Seamless Steel Pipe
20# seamless steel pipe is the most commonly used carbon steel grade under GB/T8162. It offers good machinability, weldability and balanced mechanical properties, making it suitable for general mechanical structures and engineering components.
Las aplicaciones típicas son:
Machine parts
Hydraulic components
Shafts and sleeves
General structural components
For customers looking for reliable and cost-effective carbon seamless steel pipe, 20# is one of the most widely selected materials.
45# Seamless Steel Pipe
45# seamless steel pipe is a medium carbon steel grade with higher strength and hardness compared with 20# steel pipe.
It is commonly used where improved mechanical performance is required, including:
Drive shafts
Gears
Pins
Mechanical transmission parts
CJM Steel can supply 45# steel pipes with customized cutting and machining services for mechanical manufacturing applications.
16Mn / Q345 / Q355 Seamless Steel Pipe
16Mn seamless steel pipe is a low alloy structural steel pipe widely used for applications requiring higher strength and load-bearing capacity.
In modern steel standards, 16Mn is commonly associated with Q345 and Q355 grade systems, depending on the specific standard and application requirements.
Advantages include:
Higher strength than ordinary carbon steel
Buena resistencia
Suitable for heavy-duty structures
Common applications:
Maquinaria pesada
Engineering equipment
Industrial structures
Large mechanical components
10# Seamless Steel Pipe
10# seamless steel pipe is a low carbon steel pipe with good weldability and machinability.
The following table shows typical chemical composition ranges of commonly supplied GB/T8162 grades.
Grado
C (%)
Si (%)
Mn (%)
P/S (%)
10#
0.07-0.14
0.17-0.37
0.35-0.65
≤0.035
20#
0.17-0.24
0.17-0.37
0.35-0.65
≤0.035
45#
0.42-0.50
0.17-0.37
0.50-0.80
≤0.035
16Mn
0.12-0.20
0.20-0.55
1.20-1.60
≤0.035
Propiedades mecánicas
Grado
Resistencia a la tracción (MPa)
Límite elástico (MPa)
Alargamiento (%)
10#
≥335
≥205
≥24
20#
≥390
≥245
≥20
45#
≥590
≥335
≥14
16Mn
≥490
≥325
≥21
Mechanical properties may vary according to pipe manufacturing process, heat treatment condition and product requirements.
Applications of GB/T8162 Steel Pipe
GB/T8162 seamless steel pipe is mainly used in mechanical and engineering industries where strength, reliability and dimensional accuracy are required.
Machinery Manufacturing
Used for:
Machine frames
Transmission components
Mechanical parts
Engineering Equipment
Adecuado para:
Construction machinery
Industrial equipment
Heavy-duty components
Automotive and Transportation Components
Commonly used for:
Shafts
Bushings
Structural parts
General Structural Applications
Utilizado en:
Steel structures
Fabrication projects
Industrial assemblies
Customized Processing Services for GB/T8162 Steel Pipe
Besides standard pipe supply, CJM Steel provides additional processing services to improve production efficiency for customers.
Available services include:
Pipe cutting
CNC machining
Centerless grinding
Heat treatment
Surface polishing
Customized length supply
These services help customers reduce additional processing steps and shorten project lead time.
GB/T8162 Seamless Steel Pipe FAQ
What is GB/T8162 seamless steel pipe?
GB/T8162 seamless steel pipe is a Chinese standard seamless pipe used mainly for mechanical structures and general engineering applications.
What grades are commonly available for GB/T8162 steel pipe?
Common grades include 10#, 20#, 45# and 16Mn. Among them, 20# and 16Mn are two of the most widely used grades.
Is 16Mn seamless steel pipe equivalent to Q345 or Q355?
16Mn is commonly compared with Q345/Q355 grades in many applications, but the exact equivalence depends on the applicable standard and material requirements.
What is the difference between GB/T8162 and GB/T8163 seamless steel pipe?
GB/T8162 is mainly used for mechanical and structural applications, while GB/T8163 is designed for fluid transportation applications.
Can you supply customized GB/T8162 seamless steel pipes?
Yes. CJM Steel provides customized sizes, cutting, machining and surface processing according to customer requirements.
Request a Quote for GB/T8162 Seamless Steel Pipe
Buscando un GB/T8162 seamless steel pipe supplier in China?
Contactar con CJM Steel for competitive pricing, customized processing options and export-quality seamless steel pipe solutions.
Expositor de productos de acero
Tubo galvanizado Stock 2
PREGUNTAS FRECUENTES
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
Compre chapa de acero estructural laminada en frío en las calidades Q355B, Q345B, S355JR y más en CJM, el exportador de acero experto de China. Especificaciones precisas, gran stock y envío global.
La chapa de acero laminado en frío SPCC ofrece una superficie lisa, excelente conformabilidad y durabilidad, ideal para aplicaciones de automoción y fabricación.
La viga en I de acero al carbono EN10034 ofrece una gran resistencia y fiabilidad, por lo que es adecuada para aplicaciones de construcción, infraestructuras y soporte estructural.
CJM Steel suministra acero negro de alta calidad para embalaje, automoción y construcción. Proveedor global con un inventario de más de 1 millón de toneladas, corte de precisión y logística.
CJM Steel Group Ltd.
Placa de acero estructural laminada en frío | Q345B / Q355B / S355JR