Home » SMO 254 Washer
UNS S31254, 1.4547, SMO 254 Flat Washers
UNS S31254, 1.4547, UNS S31254 SMO 254 Spring Washer
UNS S31254, 1.4547, SMO 254 Square Washer
UNS S31254, 1.4547, SMO 254 Plain Washer
Hex Forge Inc. is one of the recognized manufacturers and exporters of SS SMO 254 Washers. Stainless Steel UNS S31254 Washers outperform ordinary austenitic stainless steels in general corrosion resistance, stress corrosion cracking resistance, and strength. These SMO 254 flat washers are designed in compliance with industry and global standards. These Fasteners are made from high-quality raw materials, boosting their characteristics and qualities. Our manufacturing team uses current procedures and specialized tools to manufacture these Fasteners to provide the best service possible. At every stage of the manufacturing process, our experts inspect each fastener. Our quality control department assures that every uns 31254 SMO 254 spring washer is subject to all quality testing phases by international standards.
SMO 254 square washers is a very high-end austenitic stainless steel that combines impact toughness resistance to chloride stress corrosion cracking, pitting, and crevice corrosion with strength nearly twice that of 300 series stainless steel. SMO 254 plain washers are made of stainless steel and designed for halide-containing environments like saltwater, hydrochloric acid, and diluted sulphuric acid.
The rapid work hardening rate of stainless steel SMO 254 Washers and the lack of sulfur make it extremely tough to process. In addition, compared to traditional austenitic stainless steel SMO 254 Washer has higher tensile strength and is noted for its outstanding workability. Because the UNS S31254 6 Washer is cold-formed, it has excellent resistance to stress-associated corrosion cracking. The Washer can also be used without re-annealing at temperatures up to 120°C.
Positive material identification tests and hydrostatic, chemical, mechanical, radiographic, macro, micro, and ultrasonic tests are some of the difficulties the Washer goes through. Other tests, such as pitting resistance, flattening, flaring, eddy current, and intergranular corrosion, also have a lot of weight. This increases the product’s tensile strength.
Specification : ASTM A193 / ASME SA193
Size : M02 to M33 | Custom Sizes
Length : 3 to 200 mm
Standard : ISO, ASTM, DIN, JIS, IS, GB, BS, and all International Standards
DIN Standard : B.S. DIN 931, DIN 933, DIN 912, DIN 934, DIN 6923, DIN 603, DIN 7981, DIN 970, DIN916, DIN 7982, DIN 7985, DIN 913
UTS : NPT, UNS, UNF, UNC, UNEF, NPTF
ISO : ISO 4033, ISO 4032, ISO 7380, ISO 4017, JIS standards
Threads : METRIC, BSW, UNC, UNF, BSF or as required
Types : Lock Washer, Flat Washer, Split Washer, Sealing Washer, Machine Washer, Slot Washer, Star Washer Springs – Flat Spring & Wire Spring
STANDARD | WERKSTOFF NR. | UNS | JIS | SIS | GOST | AFNOR | EN |
SMO 254 | 1.4547 | S31254 | – | 2378 | – | Z1 CNDU 20.18.06Az | X1CrNiMoCuN20-18-7 |
WE MANUFACTURE SMO 254 WasherS AS PER INTERNATIONAL STANDARDS & SPECIFICATIONS. 254 SMO Washer MANUFACTURERS IN INDIA, CUSTOM SIZES Stainless Steel SMO 254 Lock, Plain, Star, Spring, Ogee Washers CAN BE PRODUCED AS PER CLIENT DRAWING.
Size | USS | SAE | ||||
---|---|---|---|---|---|---|
Inside Diameter (A) |
Outside Diameter (B) |
Thickness (C) |
Inside Diameter (A) |
Outside Diameter (B) |
Thickness (C) |
|
#2 | – | – | – | 3/32″ | 1/4″ | 0.020″ |
#4 | – | – | – | 1/8″ | 5/16″ | 0.032″ |
#6 | – | – | – | 5/32″ | 3/8″ | 0.049″ |
#8 | – | – | – | 3/16″ | 7/16″ | 0.049″ |
#10 | – | – | – | 7/32″ | 1/2″ | 0.049″ |
#12 | – | – | – | 1/4″ | 9/16″ | 0.065″ |
1″ | 1-1/16″ | 2-1/2″ | 0.165″ | 1-1/16″ | 2″ | 0.134″ |
1/2″ | 9/16″ | 1-3/8″ | 0.109″ | 17/32″ | 1-1/16″ | 0.095″ |
1/4″ | 5/16″ | 0.734″ | 0.065″ | 9/32″ | 5/8″ | 0.065″ |
1-1/2″ | 1-5/8″ | 3-1/2″ | 0.180″ | – | – | – |
1-1/4″ | 1-3/8″ | 3″ | 0.165″ | – | – | – |
1-1/8″ | 1-1/4″ | 2-3/4″ | 0.165″ | – | – | – |
1-3/4″ | 1-7/8″ | 4″ | 0.180″ | – | – | – |
1-3/8″ | 1-1/2″ | 3-1/4″ | 0.180″ | – | – | – |
1-5/8″ | 1-3/4″ | 3-3/4″ | 0.180″ | – | – | – |
2″ | 2-1/8″ | 4-1/2″ | 0.213″ | – | – | – |
3/4″ | 13/16″ | 2″ | 0.148″ | 13/16″ | 1-15/32″ | 0.134″ |
3/8″ | 7/16″ | 1″ | 0.083″ | 13/32″ | 13/16″ | 0.065″ |
5/8″ | 11/16″ | 1-3/4″ | 0.134″ | 21/32″ | 1-5/16″ | 0.095″ |
5/16″ | 3/8″ | 7/8″ | 0.083″ | 11/32″ | 11/16″ | 0.065″ |
7/8″ | 15/16″ | 2-1/4″ | 0.165″ | 15/16″ | 1-3/4″ | 0.134″ |
7/16″ | 1/2″ | 1-1/4″ | 0.083″ | 15/32″ | 15/16″ | 0.065″ |
9/16″ | 5/8″ | 1-15/32″ | 0.109″ | 19/32″ | 1-5/32″ | 0.095″ |
NOM SIZE | Inner Dia (d) Basic Tol (+) | Outer Dia (d1) Max | WIDTH (b) Basic Tol (+ or -) | THICKNESS (S) Basic Tol (+ or -) | Weight per 1000 in Kgs | |||
3 | 3.1 | 0.3 | 6.2 | 1.3 | 0.1 | 0.8 | 0.1 | 0.11 |
4 | 4.1 | 0.3 | 7.6 | 1.5 | 0.1 | 0.9 | 0.1 | 0.18 |
5 | 5.1 | 0.3 | 9.2 | 1.8 | 0.1 | 1.2 | 0.1 | 0.36 |
6 | 6.1 | 0.4 | 11.8 | 2.5 | 0.15 | 1.6 | 0.1 | 0.83 |
8 | 8.1 | 0.4 | 14.8 | 3 | 0.15 | 2 | 0.1 | 1.60 |
10 | 10.2 | 0.5 | 18.1 | 3.5 | 0.2 | 2.2 | 0.15 | 2.53 |
12 | 12.2 | 0.5 | 21.1 | 4 | 0.2 | 2.5 | 0.15 | 3.82 |
14 | 14.2 | 0.5 | 24.1 | 4.5 | 0.2 | 3 | 0.15 | 6.01 |
16 | 16.2 | 0.8 | 27.4 | 5 | 0.2 | 3.5 | 0.2 | 8.91 |
18 | 18.2 | 0.8 | 29.4 | 5 | 0.2 | 3.5 | 0.2 | 9.73 |
20 | 20.2 | 1 | 33.6 | 6 | 0.2 | 4 | 0.2 | 15.20 |
22 | 22.5 | 1 | 35.9 | 6 | 0.2 | 4 | 0.2 | 16.50 |
24 | 24.5 | 1 | 40 | 7 | 0.25 | 5 | 0.2 | 26.20 |
27 | 27.5 | 1 | 43 | 7 | 0.25 | 5 | 0.2 | 28.70 |
30 | 30.5 | 1.2 | 48.2 | 8 | 0.25 | 6 | 0.2 | 44.30 |
33 | 33.5 | 1.2 | 55.2 | 10 | 0.25 | 6 | 0.2 | 63.00 |
36 | 36.5 | 1.2 | 58.2 | 10 | 0.25 | 6 | 0.2 | 67.30 |
39 | 39.5 | 1.2 | 61.2 | 10 | 0.25 | 6 | 0.2 | 71.70 |
42 | 42.5 | 1.2 | 68.2 | 12 | 0.25 | 7 | 0.25 | 111.00 |
45 | 45.5 | 1.2 | 71.2 | 12 | 0.25 | 7 | 0.25 | 117.00 |
48 | 49 | 1.5 | 75 | 12 | 0.25 | 7 | 0.25 | 123.00 |
52 | 53 | 1.5 | 83 | 14 | 0.25 | 8 | 0.25 | 320.00 |
Bolt Size | USS | SAE | ||||
OD (in.) | ID (in.) | Thickness | OD (in.) | ID (in.) | Thickness | |
1 |
2.500 |
1.062 |
.136/.192 |
2.000 |
1.062 |
.108/.160 |
1/2 |
1.375 |
0.562 |
.086/.132 |
1.062 |
0.531 |
.074/.121 |
1/4 (#14) |
0.734 |
0.312 |
.051/.080 |
0.625 |
0.281 |
.051/.080 |
1/8 (#6) |
– |
– |
– |
0.375 |
0.156 |
.036/.065 |
2 |
4.500 |
2.125 |
.153/.213 |
– |
– |
– |
3 |
5.500 |
3.125 |
.249/.327 |
– |
– |
– |
3/4 |
2.000 |
0.812 |
.122/.177 |
1.469 |
0.812 |
.108/.160 |
3/8 |
1.000 |
0.438 |
.064/.104 |
0.812 |
0.406 |
.051/.080 |
3/16 (#10) |
0.560 |
0.250 |
.036/.065 |
0.500 |
0.220 |
.036/.065 |
5/8 |
1.750 |
0.688 |
.108/.160 |
1.312 |
0.656 |
.074/.121 |
5/16 |
0.875 |
0.375 |
.064/.104 |
0.688 |
0.344 |
.051/.080 |
5/32 (#8) |
– |
– |
– |
0.438 |
0.188 |
.036/.065 |
7/8 |
2.250 |
0.938 |
.136/.192 |
1.750 |
0.938 |
.108/.160 |
7/16 |
1.250 |
0.500 |
.064/.104 |
0.922 |
0.469 |
.051/.080 |
7/32 (#12) |
– |
– |
– |
0.562 |
0.250 |
.051/.080 |
9/16 |
1.469 |
0.625 |
.086/.132 |
1.156 |
0.594 |
.074/.121 |
1 1/2 |
3.500 |
1.625 |
.153/.213 |
3.000 |
1.625 |
.153/.213 |
1 1/4 |
3.000 |
1.375 |
.136/.192 |
2.500 |
1.375 |
.136/.192 |
1 1/8 |
2.750 |
1.250 |
.136/.192 |
2.250 |
1.250 |
.108/.160 |
1 3/4 |
4.000 |
1.875 |
.153/.213 |
– |
– |
– |
1 3/8 |
3.250 |
1.500 |
.153/.213 |
2.750 |
1.500 |
.136/.213 |
1 5/8 |
3.750 |
1.750 |
.153/.213 |
– |
– |
– |
1 7/8 |
4.250 |
2.000 |
.153/.213 |
– |
– |
– |
2 1/2 |
5.000 |
2.625 |
.210/.280 |
– |
– |
– |
2 1/4 |
4.750 |
2.375 |
.320/.248 |
– |
– |
– |
2 3/4 |
5.250 |
2.875 |
.228/.410S |
– |
– |
– |
Standard | Description |
---|---|
AS 1237.1-2002 | Plain washers |
AS 1237.1-2002 | Small plain washers |
ASTM F436-2010 | Extra Thick clipped washers |
ASTM F436M-2010 | Clipped washers |
ANSI B18.2.6-2003 | Steel Circular clipped washers |
ANSI B18.22.1A-1981 | Type A Plain washers |
ANSI B18.22.1B-1981 | Type B Plain washers |
ANSI B18.22.1A-1965 | Type A Plain washers |
ANSI B18.22.1B-1965 | Type B Plain washers |
DIN 125-2 | Type A washers |
DIN 125-2 | Type B washers |
APPROX. WEIGHT IN KGS FOR 100 NOS | |||||||||||||
SIZE | PLAIN PUNCHED WASHER IS:2016 |
HEAVY WASHER IS:6610 |
MACHINED WASHER IS:2016 |
SQUARE TAPER WASHERS | SPRING WASHER FLAT SECTION IS:3063-72 | SPRING WASHER SQUARE SECTION IS:6735-72 DIN : 7980 |
Size (Inches) | PLAIN PUNCHED WASHER BS:3410 TABLE 7 |
SPRING WASHER FLAT SECTION BS:1802-1951 | SPRING WASHER SQUARE SECTION BS:1802-1951 | |||
MACHINED | HIGH STRENGTH FRICTION GRIP |
||||||||||||
FOR CHANNELS IS:5372-75 |
FOR I-BEAM IS:5374-75 |
TYPE-B (CHANNELS) IS : 6649-85 |
TYPE-C ( I-BEAMS ) IS : 6649-85 |
||||||||||
M-3 | 0.01 | 0.01 | |||||||||||
M-4 | 0.02 | 0.02 | |||||||||||
M-5 | 0.04 | 0.04 | 0.03 | 0.03 | |||||||||
M-6 | 0.11 | 0.11 | 0.08 | 0.04 | 1/4″ | 0.21 | |||||||
M-8 | 0.20 | 0.21 | 1.10 | 1.20 | 0.16 | 0.11 | 5/16″ | 0.35 | |||||
M-10 | 0.39 | 1.60 | 0.40 | 1.00 | 1.10 | 0.25 | 0.20 | 3/8″ | 0.48 | ||||
M-12 | 0.58 | 1.90 | 0.62 | 2.00 | 2.20 | 2.00 | 1.80 | 0.38 | 0.23 | 1/2″ | 1.07 | ||
M-14 | 0.82 | 0.60 | 0.38 | ||||||||||
M-16 | 1.06 | 2.90 | 1.13 | 3.40 | 3.75 | 9.00 | 8.50 | 0.89 | 0.59 | 5/8″ | 1.85 | ||
M-18 | 1.27 | 0.97 | 0.66 | ||||||||||
M-20 | 1.64 | 4.40 | 1.72 | 5.80 | 6.70 | 8.50 | 8.00 | 1.52 | 1.23 | 3/4″ | 2.91 | ||
M-22 | 1.75 | 7.50 | 7.00 | 1.65 | 1.36 | 7/8″ | 4.27 | ||||||
M-24 | 3.11 | 6.30 | 3.30 | 13.50 | 16.00 | 6.50 | 6.00 | 2.62 | 1.81 | 1″ | 6.13 | ||
M-27 | 3.94 | 8.00 | 4.23 | 12.50 | 15.00 | 12.00 | 11.50 | 2.87 | 2.06 | 1.1/8″ | 7.69 | ||
M-30 | 5.05 | 10.10 | 5.36 | 16.50 | 18.70 | 17.50 | 16.00 | 4.43 | 3.20 | 1.1/4″ | 9.90 | ||
M-33 | 7.10 | 12.00 | 7.54 | 21.00 | 23.50 | 23.00 | 22.50 | 6.30 | 3.50 | ||||
M-36 | 8.73 | 14.60 | 9.20 | 25.50 | 29.20 | 26.50 | 26.00 | 6.73 | 5.25 | 1.1/2″ | 17.24 | ||
M-39 | 12.60 | 16.70 | 13.30 | 28.30 | 34.50 | 7.17 | 5.61 | ||||||
M-42 | 17.50 | 20.10 | 18.30 | 11.10 | 8.00 | ||||||||
M-45 | 21.20 | 22.20 | 22.00 | 11.70 | 8.53 | ||||||||
M-48 | 28.40 | 26.00 | 29.40 | 12.30 | 9.00 | 2″ | 27.78 | ||||||
M-52 | 31.90 | 33.00 | 18.20 | ||||||||||
M-56 | 47.90 | 19.30 | |||||||||||
M-60 | 51.60 | 20.30 | |||||||||||
M-64 | 55.40 | 21.80 | |||||||||||
M-68 | 57.40 | ||||||||||||
M-72 | 63.40 | 24.00 |
Grade | % | Ni | Cr | Mo | Cu | N | C | Mn | Si | P | S |
SMO 254 | Min. | 17.5 | 19.5 | 6 | 0.5 | 0.18 | |||||
Max. | 18.5 | 20.5 | 6.5 | 1 | 0.22 | 0.02 | 1 | 0.8 | 0.03 | 0.01 |
Element | Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
SMO 254 | 8.0 g/cm3 | 1320-1390 ℃ | 650 | 300 | 35 % |
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