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1.4404 SS316L Stainless Steel Round Bar Mechanical Properties 300mm

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1.4404 SS316L Stainless Steel Round Bar Mechanical Properties 300mm

Country/Region	china
City & Province	wuxi jiangsu

Product Details

EN 1.4404 Stainless Steel (X2CrNiMo17-12-2)

EN 1.4404 material (stainless steel X2CrNiMo17-12-2) is a low-carbon version of 1.4401 (X5CrNiMo17-12-2), the maximum carbon content is only 0.03%, while 1.4401 is 0.07% maximum, so the weldability and corrosion resistance of 1.4404 stainless steel is better than 1.4401. The chemical composition of material 1.4404 and 1.4401 contain molybdenum (Mo), while EN 1.4301 (X5CrNi18-10) and 1.4307 (X2CrNi18-9) do not. Molybdenum improves the heat resistance of steel and resists pitting and crevice corrosion in environments containing chlorides or other halides.

EN 1.4404 Material Datasheet & Specification

The following tables and lists give the stainless steel 1.4404 datasheet including chemical composition, physical properties and mechanical properties etc.

Chemical composition

DIN EN 1.4404 material chemical composition is listed in the following table.

		Chemical composition %
Standard	Steel name (Steel number)	C ≤	Si ≤	Mn ≤	P ≤	S ≤	Cr	Ni	Mo	N ≤
EN 10088-1	X2CrNiMo17-12-2 (1.4404)	0.03	1.00	2.00	0.045	0.030	16.5-18.5	10.0-13.0	2.00-2.50	0.10

Physical Properties

DIN 1.4404 material physical properties are given in the following lists, including density, thermal expansion, elastic modulus, thermal conductivity, specific heat capacity and electrical resistance.

Notes:

10-6·K-1 = 10-6/K
1 Ω·mm²/m = 1 μΩ·m
1 g/cm3 = 1 kg/dm3 = 1000 kg/m3
1 GPa = 1 kN/mm2
1 MPa = 1 N/mm2

Density (g/cm3)	8.0
Thermal conductivity at 20 °C (W/m·K)	15
Specific heat capacity at °C (J/(Kg·K))	500
Electrical resistivity at 20 °C (μΩ·m)	0.75
Magnetic	No

Modulus of elasticity
Value, Gpa	Temperature, °C
200	20
194	100
186	200
179	300
172	400
165	500

Coefficient of thermal expansion, °C
Value, 10-6/K	Temperature, °C
16.0	20-100
16.5	20-200
17.0	20-300
17.5	20-400
18.0	20-500

Mechanical Properties

The following table gives the material 1.4404 mechanical properties in the solution-annealed condition for steel sheet, steel plate and steel strip.

Standard	Steel Grade (Steel Number)	Product Condition	Thickness (mm), ≤	0,2 % yield strength (Mpa), (Transverse)	1 % yield strength (Mpa), (Transverse)	Tensile strength (MPa)	Elongation (%), < 3mm thick	Elongation %, ≥ 4mm thick	Impact energy (J) KV2 > 10mm thick (Longitudinal)	Impact energy (J) KV2 > 10mm thick (Transverse)
EN 10088-2	X2CrNiMo17-12-2 (1.4404)	cold rolled strip	8	≥240	≥270	530-680	≥40	≥40	–	–
		hot rolled strip	13,5	≥220	≥260	530-680	≥40	≥40	100	60
		hot rolled plate	75	≥220	≥260	520-670	≥45	≥45	100	60

The following table gives the steel 1.4404 mechanical properties in solution annealed condition for semi-finished products, bars, rods, wires, profiles and bright products.

		Mechanical properties (solution annealed)
Standard	Steel Grade (Steel Number)	Diameter (d) or Thickness (t) in mm	Hardness (HB)	0.2% yield strength (N/mm2)	1% yield strength (N/mm2)	Tensile strength (N/mm2)	Elongation (%)	Impact energy (J)
EN 10088-3	X2CrNiMo17-12-2 (1.4404)	d≤160	≤ 215	≥ 200	≥ 235	500-700	40 (Longitudinal)	≥ 100 (Longitudinal)
EN 10088-3	X2CrNiMo17-12-2 (1.4404)	160<t≤250	≤ 215	≥ 200	≥ 235	500-700	30 (Transverse)	≥ 60 (Transverse)

		Mechanical properties for bright bars (solution annealed)
Standard	Steel Grade (Steel Number)	Diameter (d) or Thickness (t) in mm	0.2% yield strength (N/mm2) ≥	Tensile strength (N/mm2)	Elongation (%) ≥	Impact energy (J) ≥
EN 10088-3	X2CrNiMo17-12-2 (1.4404)	d≤10	400	600-930	25	–
		10<t≤16	400	580-930	25	–
		16<t≤40	190	500-830	30	100
		40<t≤63	190	500-830	30	100
		63<t≤160	190	500-700	40	100
		160<t≤250	190	500-700	30 (Transverse)	60 (Transverse)

DIN EN 1.4404 Welding

Compared to stainless steel 1.4401, it can be easily welded using a variety of conventional welding methods due to its extremely low carbon content and does not require annealing after welding.