ASTM A453 GR660 A286 1.4944 GH2132 1.4980 Flat socket screw bolt DIN7991

Specifications

Material :
304  304L 347 316 316L 316Ti 317L 254SMO 654SMO AL6XN 310S 309S 2205 2507 321 S32760 Monel400 Monelk500 Inconel718 724L Hastelloy C276 C22 C4 GH2132 A286 A453 GR660 316Ti Inconel625 Alloy59 Inconel600 Inconel925  Inconel825 GH3030 Alloy20 347 17-4PH Alloy800

Standards: GB ,ANSI/AMSE, DIN, JIS and BS,UNI etc

Product Range:
Bolt, nut, washer, thread rod ,round bar,rivets and other fasteners and stainless steel products.

Our Feature:
1.Fast Delivery
2.Factory sales
3.small order accepted (50 pieces)
4.mill test certifecate can be provided
Metric size: M6 to M100
Inch size :  1/4" to 2 1/2
Nut: M3-M64 (hexagonal, flange)
  Threaded Rod:4-3000mm (all thread, double end thread)

We produce screws, stud bolts and nuts ASTM A453 GR 660, Alloy 286, 1.4980 material.It is a precipitation hardening steel heat resistant, recommended in case of high mechanical resistance and corrosion resistance up to 700°C.  It is suitable to be used in jet engines, turbines, gears, paddles, nuts, bolts, spring washers and other devices that require high temperatures resistance.
The corrosion resistance of ASTM A453 GR 660 - ASTM A286 GR 660 is excellent up to 700°C. The  oxidation resistance is good up to 800°C in current “on-order” conditions and up to 980°C in fitful “on-order” conditions.

ASTM A453 GR 660 - ASTM A286 GR 660 can be protected arc welded or arc welded in inert atmosphere. We recommend  soluble not aged condition. Soluble operation up to 980°C  lasting 1 hour and rapid cooling (by air or by water). Precipitation aging at 720°C lasting 16 hours. Forging gap 1150°C up to 1050°C avoiding to go down 930°C. The warping resistance is higher than the austenitic steels one.

ASTM A453 GR 660 - ASTM A286 GR 660 COMPARABLE SPECIFICATIONS

ASTM A453 GR 660 - ASTM A286 GR 660 NOMINAL CHEMICAL COMPOSITION

ASTM A453 GR 660 - ASTM A286 GR 660 PHYSICAL PROPERTIES

Density
g/cm3 20°C 7.95

Modulus of elasticity
N/mm2 20°C 199.000

Thermal conductivity
W/m.K. (20°C) 12

Specific heat
J/g.K.(20°C) 460

Thermal expansion coefficient
20° - 100°C 16.5
20° - 300°C 17.0
20° - 538°C 17.6
20° - 760°C 18.6

ASTM A453 GR 660 - ASTM A286 GR 660 MECHANICAL PROPERTIES AT ROOM TEMPERATURE

Yield strenghth
RP 0.2 N/mm2 >230

Tensile stength
Rm N/mm2 650(solubile) 930/1180 (solubile + inv.)

Elungation
A5% 55(solubile) ≥12 (solubile + inv.)

Reducton area
Z% 65(solubile) 45(solubile + inv.)