Description
| GB | 022Cr19Ni13Mo3 |
| ISC | S31703 |
| CNS | 317L |
| JIS | SUS 317L |
| KS | STS 317L |
| ASTM | S31703 |
| UNS | X2CrNiMo 19-14-4 |
| ISO | X2CrNiMo 18-15-4 |
| EN | X2CrNiMo 18-15-4 |
| W-Nr. | 1.4438 |
Compared with conventional chromium-nickel austenitic stainless steel such as 304 alloy, 317L stainless steel has stronger resistance to chemical corrosion. In addition, compared with conventional stainless steel, 317L alloy has higher ductility, stress corrosion resistance, compressive strength and high temperature resistance. It is low carbon grade or L grade, this grade has anti-sensitization performance during welding and heat treatment.
Chemical element content(%)
| 317L | Min% | Max% |
| C | – | 0.03 |
| Si | – | 1 |
| Mn | – | 2 |
| P | – | 0.045 |
| S | – | 0.03 |
| Cr | 18 | 20 |
| Ni | 11 | 15 |
| N | 3 | 4 |
Fastener type
| BOLT | Hex bolt | DIN931(ISO 4014)
DIN933(ISO 4017) DIN961(ISO 8676) ANSI B18.2.1 JIS B1180 |
| Hex flange bolt | DIN6921
ANSI B18.2.1 |
|
| Carriage bolt | DIN603(ISO 8677)
ANSI B18.5 |
|
| Eye bolt | DIN580
DIN444 |
|
| Square head bolt | ASME B18.2.1
JIS B1182 |
|
| T bolt | DIN186
JIS B1166 |
|
| U bolt | DIN3570
IFI136 ASME B18.31.5 |
|
| Anchor bolt | ASME B18.31.5
JB/ZQ 4363 JB/ZQ4364 |
|
| SCREW | Hex socket screw | DIN912(ISO 4762)
DIN7984 DIN7991(ISO 10642) ISO 7380 ASME B18.3 |
| Machine screw | DIN963(ISO 2009)
DIN964(ISO 2010) DIN965(ISO7046) DIN966(ISO7047) ANSI B18.6.3P ANSI B18.6.3F DIN84(ISO 1207) DIN85(ISO 1580) |
|
| Set screw | DIN913(ISO 4026)
DIN914(ISO 4027) DIN915(ISO 4028) DIN916(ISO 4029 ) ANSI B18.3 |
|
| Tapping screw | ISO7049
ISO 7050 JIS B1122T DIN7982 DIN968 |
|
| Wooden screw | DIN571
ANSI B18.2.1 |
|
| NUT | Hex nut | DIN 934(ISO 4032)
ANSI B18.2.2 ANSI B18.2.4 DIN 936(ISO 4035) DIN 439(ISO 4036) ISO 8674(UNI 5587) |
| Hex flange nut | DIN6923(ISO 4161
ANSI B18.2.4.4M) IFI 145 |
|
| Lock nut | DIN985
DIN982 DIN980 DIN6926 ANSI B18.16.6 |
|
| Cover nut | DIN1587
DIN917 |
|
| Square nut | DIN557
DIN562 ANSI N18.2.2 |
|
| STUD | Stud | DIN975
DIN976 IFI136 |
| WASHER | Flat washer | DIN125(ISO7089/ISO7090)
DIN126(ISO 7091) DIN9021(ISO 7093) ANSI B18.22.1 |
| Spring washer | DIN127
DIN7980 |
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