We produce screws, nuts and stud bolts in A193 B8 and nuts and stud bolts in A320 B8 . This is a NI-Cr austenitic not tempered stainless steel, hardening through cooling warping at better workability.

This material is mainly used for the equipments of food production and preservation, in chemical industry and in architectonic and cars features.

At solubled status, it is corrosion resistant to several substances of chemical, textile, oil, dayring and food industries.

Considering the less content of carob steel, the type 304 is less subject to intercrystalline corrosion than type 302.

We recommend to avoid slow cooling and heating processes between 450-900°C-

A193 B8 and A320 B8 has a good heat oxidation resistance upto 850°C in current “on order” conditions, upto 800°C in in fitful “on-order” conditions. It can be welded without any particular problem, but we recommend not to use austenitic steel electrodes types AISI 308 or 347. The after-welding treatment is not necessary when the welded sections have a thickness lower than 25mm.

>> Contact us for nuts and stud bolts in A193 B8 A320 B8<<

»A193 B8 and A320 B8 COMPARABLE SPECIFICATIONS

EN 10088/3	X 5 Cr Ni 1810
W.	1.4301
JIS	SUS 304
AISI	304

» A193 B8 and A320 B8 NOMINAL CHEMICAL COMPOSITION

C	S	P	Si	Mn	Cr	Ni	N	Cu
0.05	0.025	0.03	0.40	1.8	18.2	8.0	0.080	0.40

» A193 B8 and A320 B8 PHYSICAL PROPERTIES

Density

• g/cm3 20°C - 7.9

Modulus of elasticity

• N/mmq 20°C - 200.000

Thermal conductivity

• W/m.K. (20°C) - 14.6

Specific heat

• J/g.K. (20°C) - 500

Thermal expasion coefficient

• 20°-200°C 16.5
• 20°-200°C 17.5
• 20°-200°C 18.5

Specific electric resistance

• Ω mm2/m 20°C 0.73

No magnetic

» A193 B8 and A320 B8 MECHANICAL PROPERTIES AT ROOM TEMPERATURE

Yield strenght

• RP 0.2 N/mmq ≥190

Tensile strength

• Rm N/mmq 500-700

Elongation

• A5% ≥45

Reduction of area

• Z% ≥60

Hardness

• HB ≤215