High Qualiy 4340 Sncm439 41crnimo4 1.6563 Alloy Structural Steel Pipe Tube

Type: Steel Pipe
Standard: AISI, ASTM, DIN, JIS, GB, BS
Composition: AISI 4340, 20mn2,40cr

Product Description

📊 Overview & Basic Info
Model NO.
4340 Sncm439 41CrNiMo4 1.6563
Technique
Hot-Rolled Cold Drawn
Shape
Pipe
Surface Treatment
Untreated
Special Use
High-strength Steel Plate, Wear Resistant Steel, Silicon Steel
Application
Structural Steel Bar
Delivery Time
Available in Stock
MOQ
1 Ton
Production Capacity
2000 Tons/Month
Specification
Diameter: 10mm~900mm
🛠️ Product Description
💎
Premium Materials
AISI 4340, 20Mn2, 40Cr, etc.
📦
Versatile Shapes
Round bars, wire rods, pipes, plates, coils, flat steel, square steel, angle steel.
Diameter 10mm ~ 900mm or as per requirements
Length 0.5m ~ 12m or as per requirements
Tolerance Diameter: +/-0.15mm; Length: +/-4.5mm or as specified
Surface Finish 180G, 320G, 400G Satin / Hairline, 400G-800G Mirror finish
Testing Squash test, Extended test, Water pressure test, Crystal rot test, Heat treatment, NDT
Mechanical Property Tensile Strength: ≥ (440~1470)
Yield Strength: ≥ (255~1330)
Extension: ≥ (7%~24%)
Hardness (HBS): ≤ (179~269)
Key Characters 1. High strength and hardenability; 2. Good plasticity in cold condition; 3. High fatigue resistance; 4. Excellent combination properties.
Main Applications Aerospace, vehicle, aircraft, missile, weapons, railways, bridges, pressure vessels, machine tools, gears, shafts, cams, clutches.
🖼️ Product Visuals
📜 Certifications
Frequently Asked Questions (FAQ)
Q1: What are the main advantages of 4340 alloy steel? A: 4340 alloy steel is known for its exceptional toughness, high strength, and excellent hardenability. It maintains good fatigue resistance and is ideal for high-stress applications in aerospace and heavy machinery.
Q2: Can the steel pipes be customized to specific lengths? A: Yes, we provide lengths ranging from 0.5m to 12m, and we can cut or customize the dimensions based on your specific engineering requirements.
Q3: What types of surface treatments do you offer? A: We offer various finishes including Satin/Hairline (180G, 320G, 400G) and Mirror finishes (400G to 800G) to meet different aesthetic and functional needs.
Q4: What testing procedures do the products undergo? A: Our products undergo rigorous testing including squash tests, extended tests, water pressure tests, crystal rot tests, and non-destructive testing (NDT) to ensure premium quality.
Q5: What is the typical lead time for orders? A: We maintain a significant stock of standard specifications for immediate delivery. For custom production, our capacity is approximately 2000 tons per month.
Q6: In which industries is 41CrNiMo4 steel commonly used? A: It is widely used in aerospace, automotive manufacturing, petrochemical industries, and for making high-strength components like gears, shafts, and pressure vessels.

Related Products