Martensitic Stainless Steel Seamless Welded Pipe AISI 440A/B/C 40mm

Port	Ningbo
Packaging	Seaworthy Standard Package
Lead Time	15-20 Days

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Product Details

Overview

Stainless 440C is a high-carbon martensitic stainless steel. As a martensitic stainless steel, 440C is magnetic and can be hardened by heat treatment. The high carbon content in 440C provides high hardness and strength. Despite this carbon content, the chromium content is sufficient to retain its stainless characteristics. Martensitic steels are commonly used in applications where high strength and moderate corrosion resistance is required.

Application

Valve Seats

Surgical Instruments

Bearings

Bushings

Nozzles

Structural Aircraft Parts

440 Stainless Pipe Chemical Composition

			440 Stainless Steel Chemical Composition, %
ASTM	Steel	AISI (UNS)	C	Si (≤)	Mn (≤)	P (≤)	S (≤)	Cr	Mo (≤)
ASTM A276/A276M	440 Steel	440A (S44002)	0.60-0.75	1	1	0.04	0.03	16.0-18.0	0.75
		440B (S44003)	0.75-0.95	1	1	0.04	0.03	16.0-18.0	0.75
		440C (S44004)	0.95-1.20	1	1	0.04	0.03	16.0-18.0	0.75

Physical Properties

SS440 Physical Properties
Density (g/cm3)	7.8
Melting point (℃)	1370-1480
Specific heat capacity, J/(Kg·K)	460 (0-100 ℃)
Electrical resistivity (μΩ·m)	0.6 (20 ℃)
Elastic modulus (GPa)	200
Thermal conductivity (W/m·K)	24.2 (100 ℃)
Coefficient of thermal expansion	10.2 (0-100 ℃)

Mechanical Properties Stainless Steel 440

Mechanical Properties
Grade (UNS)	Tensile Strength (MPa) ≥	Yield Strength, 0.2%, ≥ (MPa)	Elongation in 50 mm (%) ≥	Reduction in area (%)	Hardness
440A (S44002)	725	415	20		95 HRB
	1790	1650	5	20	51 HRC
	≤ 965
440B (S44003)	740	425	18		96 HRB
	1930	1860	3	15	55 HRC
	≤ 965
440C (S44004)	760	450	14		97 HRB
	1970	1900	2	10	57 HRC
	≤ 965

Wenzhou Zheheng Steel Industry Co.,Ltd

Zheheng steel is one incorporate of manufacturer, Exporter ,consultant ,stockist company specialized in the area of stainless steel tubing , pipe fittings ,Flanges and other stainless steel grade acc

China