ASTM A519 Gr. 4140 Seamless Alloy Steel Pipe

• Customization: Available
• Application: Chemical Industry, Oil and Gas Industry, Water Treatment Plants
• Certification: CE, ISO9001
• End Connection: Beveled End
• Length: Single Random Length (SRL)
• Outer Diameter: 6 inch
• Wall Thickness: Schedule 160
• Type: Seamless
• Technique: Hot Rolled
• Material: Alloy Steel
• Surface Treatment: Varnishing
• Usage: Machinery Industry
• Section Shape: Round
• After-Sales Service: Change/Return
• Warranty: 10 Year
• Quality Test: Chemical and Mechanical
• Mill′s Certificate: En10204 3.1 or 3.2 on Request
• Transport Package: Bundles
• Specification: 20-500mm diamter
• Trademark: kingmetal
• Origin: China
• HS Code: 73045110
• Production Capacity: 3000 Ton/Month

Product Description

ASTM A519 Gr. 4140 Seamless Alloy Steel Pipe

Grade AISI 4140 is a low alloy steel that contains additions of chromium, molybdenum, and manganese in their alloy. In comparison to Grade 4130, the content of carbon in 4140 is slightly higher. This versatile alloy makes for an AISI 4140 Pipe with good properties. For instance, they have good resistance to atmospheric corrosion along with reasonable strength.

Chemical Composition

Element	Content (%)
Iron, Fe	96.785 - 97.77
Chromium, Cr	0.80 - 1.10
Manganese, Mn	0.75 - 1.0
Carbon, C	0.380 - 0.430
Silicon, Si	0.15 - 0.30
Molybdenum, Mo	0.15 - 0.25
Sulfur, S	0.040
Phosphorous, P	0.035

 Mechanical Properties 

Properties	Metric	Imperial
Density	7.85 g/cm3	0.284 lb/in³
Melting point	1416°C	2580°F

Standard	ASTM A519
Size	1/2" NB to 36" NB
Thickness	3-12mm
Schedules	SCH 40-SCH XXS
Tolerance	Cold drawn pipe: +/-0.1mm Cold rolled pipe: +/-0.05mm
Technical	Cold rolled/ Cold drawn
Type	Seamless / welded
Shape	Round, Square, Rectangular, Hydraulic Etc.
Length	SRL, DRL, Fixed 5.8/6/11.8M
Pipe End	Plain End, Beveled End, Treaded with plastic end cap

Company Profile
From 1989 to now, Kingmetal Steel focus on manufacturing and distributing pipeline products including piping, fitting, flange, valve and fastener in stainless, carbon, alloy and duplex steel.
Kingmetal has a factory to manufacture seamless stainless steel pipe from DN6 to DN600 and distribute seamless steel pipe and fitting from top brand manufacturers such as Baosteel, Hengsteel, Tiansteel and Pansteel etc.
All of products are strictly compliance with standard, 100% inspection passed including visual, dimension and PMI test before shipment.
Both our sales and logistic teams are over 10 years of experiences and training frequently.
After- sales service with high efficiency, if any products are short quantity/weight or damaged caused by manufacturing, design or transportation can be compensated.

Why choose us?
One-Stop Solution
We have thousands of total production experience, from raw materials to finished products.
Competitive Price
Large scale purchase, standardized production process and efficient management make our price competitive.
Quick Shipping
Years of export experience enable us to control the transportation time more accurately.
Quality Control
The standardized production process, comprehensive management system, professional testing equipment
Special material customization
We support the customization of various complex materials
OEM/ODM
We support any form of OEM/ODM customization requirements.