Austenitic Stainless Steel Bolts

SUS347 SS347 Heavy Hex Bolt 1.4550 Wholesale

SUS347 SS347 Heavy Hex Bolt 1.4550 Wholesale
Product Details

SS347 Bolt
BDF can produce qualified SS347 bolt of all kinds of cold formed and hot forged. The forms are hexagon bolts, hex heavy bolts, socket cap bolts, anchor bolts, and other non-standard bolts according to customer drawings. The size ranges from M8-M100 in METRIC and 3/8” to 3-1/2” in INCH, with varies length.
347 stainless steel is variant of the basic austenitic 18/8 Grade 304 with added Columbium – the introduction of Columbium stabilizes the steel and eliminates carbide precipitation which subsequently causes intergranular corrosion.
The steel has excellent forming and welding qualities and excellent toughness even at cryogenic temperatures.
347 Chemical Composition:

UNS No

Grade

C

Si

Mn

P

S

Cr

Mo

Ni

N

Other

S34700

347

0.08

0.75

2.00

0.045

0.030

17.00/19.00

9.00/13.00

Cb:10xC1.00

Physical properties:

Density

7.98 g/cm3

Melting range

1398~1427℃

347 Mechanical Properties:

UNS No

Grade

Proof Stress
 
0.2% (MPa)

Tensile Strength
 
(MPa)

Elongation
 
A5(%)

Hardness Max

HB

HRB

S34700

347

205

515

40

201

92

SS321 minimum mechanical properties in the room temperature:

Alloy

Tensile strength Rm N/mm²

Yield strength RP 0. 2N/mm²

Elongation A 5 %

HRC(HBS)

SS321

520

205

40

≤187

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