JIS G4053 SNCM 439 Seamless Steel Pipes

JIS G4053 SNCM 439 Seamless Steel Pipe‌ is a high-strength alloy structural steel. The implementation standard is JIS G4053-2008, and it belongs to nickel-chromium-molybdenum tempered alloy structural steel.

standard:JIS

Surface :1. Galvanized 2. Black and Color Painting

introduction

‌JIS G4053 SNCM 439 alloy steel pipe supplied by GNEE has high strength, hardness, wear resistance and good toughness, especially in the manufacture of mechanical parts and structural parts subject to high loads. Its hardenability is slightly higher than 40Cr, and the critical quenching diameter in oil can reach 18-33mm.
‌JIS G4053 SNCM439 seamless alloy steel pipe is generally used in the tempered state, and the operating temperature range is -20-425℃. It is widely used in parts that require high strength, high toughness, large cross-sectional dimensions and more important quenching and tempering.

Data table

Chemical Composition and Mechanical Properties of JIS G4053 SNCM 439 Alloy Pipe

Steel Grade	Chemical composition (%)
Steel Grade	C	Si	Mn	P	S	Ni	Cr	Mo
SNCM439	0.36-0.43	0.15-0.35	0.60-0.90	0.030max	0.030max	1.60-2.00	0.60-1.00	0.15-0.30

Steel grade	Yield Strenght Mpa (min)	Tensile Strength Mpa(min)	Elogation %(min)
SNCM 439	835	980	12

Recommended Heat Treatment Temperatures

Heat Treatment	Annealing	Normalizing	Austenitizing	Tempering
Temperatures (°C)	650-700	850-880	820-850	540-680

company advantage

Why Choose GNEE

GNEE has been engaged in the steel industry for more than 16 years. It has two steel pipe and plate series production and processing factories and three storage warehouses. Our annual production scale can reach 500,000 tons, and the warehouse inventory exceeds 20,000 tons per year.
In addition, we can also provide processing procedures for steel products, such as rust prevention, cutting and chamfering, connection, heat treatment, bending, galvanizing, polishing, beveling, pickling, spraying, CNC machining, etc.
If you would like to know more about our company or our products, please feel free to contact us.

FAQ

Q: Do you have quality control?
A: Yes, we have gained BV, SGS authentication.
Q: Can you arrange the shipment?
A: Sure, we have permanent freight forwarder who can gain the best price from most ship company and offer professional service.
Q: How long is your delivery time?
A: Generally it is 7-14 days if the goods are in stock. or it is 25-45 days if the goods are not in stock, it is according to quantity.