Large Diameter Carbon Steel Tube Hot Rolled Welded Pipe AISI 4140 Alloy Tube 4130 Chromoly Seamless Steel Pipe 42CrMo4 1020 1045 5120 5140

Customization: Available
After-sales Service: One-Stop Service
Warranty: One Year

Product Description

Basic Specifications
Model NO. AISI 4140/4130 42crmo4 1020 1045 5120 5140 Type Seamless
Technique Hot Rolled Material Alloy Steel
Surface Treatment Black Section Shape Round
Usage Oil/Gas Drilling, Machinery Industry, Chemical Industry, Construction & Decoration
Length 6m, 12m, 4m Grade 42CrMo4 42CrMo 15CrMo 40cr 20cr 4130 4140
Specification OD10-812mm, Thickness 1-200mm
Product Overview
Seamless steel pipes are crafted from a single piece of metal without any surface seams. Depending on the production method, these are categorized into hot rolled, cold rolled, cold drawn, extruded, and jacked tubes. These pipes are widely utilized across various industrial sectors due to their integrity and strength.
Product NameAlloy Steel Pipe And Tube
Wall Thickness1.5mm-100mm
Outer Diameter22mm-650mm
ToleranceWall Thickness: ±0.05MM, Length: ±6mm, Outer Diameter: ±0.3MM
TechniqueCold rolled, Hot Rolled, Galvanized
StandardASTM, DIN, JIS, BS, AISI, GB
ApplicationFurniture, interior decoration, fluid pipeline, petroleum and natural gas industry, drilling, structure
Alloy Steel Tube
Detailed Product Photos
Detailed Photo 1 Detailed Photo 2 Detailed Photo 3 Detailed Photo 4 Detailed Photo 5
Packaging & Logistics
Packaging and Shipping
Industrial Applications
Product Application
Manufacturing Process
Product Process
Why Choose Us
🏭
Professional Expertise
Over 10 years of production history in the steel equipment manufacturing sector.
🛡️
Strict Quality Control
Chemical composition analysis, hydrostatic testing, dimensional checks, and non-destructive inspections.
💰
Competitive Pricing
Direct factory supply ensuring reasonable prices without compromising on quality.
Fast & Secure Delivery
Professional packing to avoid damage and prompt dispatch from abundant stock.
Our Service Commitment
Pre-sale: We offer quick responses, factory prices, and customization for designs, sizes, and logos to meet specific requirements.

After-sale: Real-time container loading pictures, tracking numbers, and 24-hour online support to ensure smooth delivery.
Our Services
Frequently Asked Questions
What materials are available for these pipes?
We supply a wide range of materials including AISI 4140, 4130, 42CrMo4, 1020, 1045, 16Mn, and various Q-grades (Q195-Q345).
What are the size specifications?
Our seamless tubes range from Outer Diameter 10mm to 812mm, with wall thicknesses between 1mm and 200mm.
Do you provide processing services?
Yes, we offer comprehensive processing services including welding, punching, cutting, bending, and decoiling.
How long is the delivery time?
Standard delivery is typically within 8-14 days depending on stock availability and order specifications.
What international standards do you follow?
Our products comply with ASTM, DIN, JIS, BS, AISI, and GB standards, with MTC or third-party inspections available.
What are the main applications for these tubes?
They are widely used in petroleum and gas drilling, chemical processing, machinery manufacturing, and structural construction.

Related Products