| Customization: | Available |
|---|---|
| Material: | 1.4462/2205 |
| Type: | Hexagon Head |
|
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What is DIN 7991?
DIN 7991 countersunk socket screw features
Hexagon socket: facilitates tightening and untightening with an Allen key. Metric thread: available in metric ISO thread from M3 to M24 to suit different applications.
It has steel one with grade of 8.8 and 10.9.
Stainless one has grade A2-70 and A4-70.
Duplex 2205 with grade of D6-80 and dupler duplex 2507 with grade of 80,
and also, it has grade of 1.4529 with A8-80, and grade 254smo, 904L, 310S, SS321, Monel 400,
Inconel 625 , C276 and so on.
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Duplex ISO10642 Countersunk Head Socket Screw
|
Name |
Hexagon socket Countersunk Head cap Screw |
|
Standard |
ISO10642 DIN7991 |
|
Size Range |
M3-M24 |
|
Finish |
Bright&Clean |
|
Marking |
HT&FST or customization |
|
Material |
Duplex 2205 & Super duplex 2507 & S32760 |
|
Grade |
Grade 80 |
|
Certificates |
EN10204-3.1B |
|
Non-standards |
OEM is available, according to drawing or samples |
|
Samples |
Samples available |
|
Package |
Bulk in box and then in cartons, then on pallets, or according to customers' requirement. |
| Payment | T/T,Western Union |
Duplex 2205
|
UNS |
ID |
JIS |
W.Nr |
| S31803 | F51 | SUS32953L | 1.4462 |
Chemical composition of stainless steel 2205 bolts
| Alloy | % | Ni | Cr | Fe | Mo | N | C | Mn | Si | S | P |
| 2205 | Min. | 4.5 | 21 | Bal | 2.5 | 0.08 | |||||
| Max. | 6.5 | 23 | 3.5 | 0.2 | 0.03 | 2 | 1 | 0.02 | 0.03 |
Minimum mechanical properties of duplex stainless steel F51 (S31803/2205/1.4462) nut alloy at room temperature
| Tensile strength Rm N/mm2 | Yield strength RP0.2 N/mm2 | Elongation rate A5% | Brinell hardness HB |
| 620 | 450 | 25 | 290 |
Super Duplex 2507
|
UNS |
ID |
AISI/ASTM |
W.Nr |
| S32750 | F53 | 2507 | 1.4410 |
Chemical composition of Super Duplex 2507
| Alloy | % | Ni | Cr | Mo | N | C | Mn | Si | S | P | Cu |
| 2507 | Min. | 6.0 | 24 | 3.0 | 0.24 | 0.08 | |||||
| Min. | 8.0 | 26 | 5.0 | 0.32 | 0.03 | 1.2 | 0.08 | 0.02 | 0.035 | 0.5 |
Minimum mechanical properties of alloy for Super Duplex 2507 at room temperature
| Tensile strength Rm N/mm2 | Yield strength RP0.2 N/mm2 | Elongation rate A5% | Brinell hardness HB |
| 800 | 550 | 15 | 310 |
Super Duplex S32760
| UNS | ID | W.Nr |
| S32760 | F55 | 1.4501 |
Chemical composition of duplex stainless steel F55 (S32760/1.4501) nut
| Alloy | % | Ni | Cr | Mo | N | C | Mn | Si | S | P | Cu | W |
| F55 |
Min. |
6.0 | 24 | 3.0 | 0.2 | 0.5 | 0.5 | |||||
| Max. | 8.0 | 26 | 4.0 | 0.3 | 0.03 | 1.0 | 1.0 | 0.01 | 0.03 | 1.0 | 1.0 |
Minimum mechanical properties of duplex stainless steel F55 (S32760/1.4501) nut alloy at room temperature
|
Tensile strength Rm N/mm² |
Yield strength RP0.2 N/mm² |
Elongation rate A5% |
| 820 | 550 | 25 |
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