Material Grades
Stainless Steel Fasteners
Scroll through our range of stainless steel fasteners, ranging from 304/304L to ISO 3506-1 A2
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304 / 304L
Chemical compositions and mechanical properties for 304 / 304L.
Chemical compositions - 304
Element | % Present |
---|---|
Carbon (C) | 0.07 |
Chromium (Cr) | 17.50 - 19.50 |
Manganese (Mn) | 2 |
Silicon (Si) | 1 |
Phosphorous (P) | 0.045 |
Sulphur (S) | 0.015b |
Nickel (Ni) | 8.00 - 10.50 |
Nitrogen (N) | 0.1 |
Iron (Fe) | Balance |
Chemical compositions - 304L
Element | % Present |
---|---|
Carbon (C) | 0.03 |
Chromium (Cr) | 17.50 - 19.50 |
Manganese (Mn) | 2 |
Silicon (Si) | 1 |
Phosphorous (P) | 0.045 |
Sulphur (S) | 0.015b) |
Nickel (Ni) | 8.00 - 10.50 |
Nitrogen (N) | 0.1 |
Iron (Fe) | Balance |
Mechanical Properties - 304
Property | Value |
---|---|
Comprehensive Strength | 210 MPa |
Proof Stress | 210 Min MPa |
Tensile Strength | 520 - 720 MPa |
Elongation | 45 Min% |
Mechanical Properties - 304L
Property | Value |
---|---|
Proof Stress | 200 Min MPa |
Tensile Strength | 500 - 700 MPa |
Elongation | 45 Min% |
310
Chemical compositions and mechanical properties for 310.
Chemical Compositions - 310
Element | % Present (in product form) | % Present (in product form) |
---|---|---|
C, H, P, L | TW* / TS* | |
Carbon (C) | ≤0.10 | ≤0.15 |
Silicon (Si) | ≤1.50 | ≤0.75 |
Manganese (Mn) | ≤2.00 | ≤2.00 |
Phosphorous (P) | ≤0.045 | ≤0.045 |
Sulfur (S) | ≤0.015 | ≤0.030 |
Chromium (Cr) | 24.00 - 26.00 | 24.00 - 26.00 |
Nickel (Ni) | 19.00 - 22.00 | 19.00 - 22.00 |
Nitrogen (N) | ≤0.11 | - |
Iron (Fe) | Balance | Balance |
Mechanical Properties - 310
Product Form | Product Form | Product Form | ||||
---|---|---|---|---|---|---|
C, H, P | L | TW* / TS* | ||||
Thickness a or diamter d (mm) | Thickness a or diamter d (mm) | a ≤ 12 | d ≤ 25 | - | ||
Hardness HB max. 1) 2) 3) | Hardness HB max. 1) 2) 3) | 192 | 192 | - | ||
Proof Strength3) | Proof Strength3) | Rp0.2 N/mm2 | 210 | 210 | 210 | |
Proof Strength3) | Proof Strength3) | Rp1.0 N/mm2 | 230 | 230 | 270 | |
Tensile Strength | Tensile Strength | Rm N/mm2 | 500 - 700 | 500 - 700 | min. 500 | |
Elongation min. in % | Elongation min. in % | Long Products | Long Products | 351) | 351) | 334) / 355) |
Elongation min. in % | Elongation min. in % | Flat Products | 0.5 ≤ a/d < 3 | 354)5) | 354)5) | 354)5)6) |
Elongation min. in % | Elongation min. in % | Flat Products | 3 ≤ a/d | - | - | 354)5)6) |
316 / 316L
Chemical compositions and mechanical properties for 316 / 316L.
Chemical Composition - 316
Element | % Present |
---|---|
Carbon (C) | 0.07 |
Silicon (Si) | 1 |
Manganese (Mn) | 2 |
Phosphorous (P) | 0.045 |
Sulfur (S) | 0.0151) |
Chromium (Cr) | 16.50 - 18.50 |
Nickel (Ni) | 10.00 - 13.00 |
Nitrogen (N) | 0.1 |
Molybdenum (Mo) | 2.00 - 2.50 |
Iron (Fe) | Balance |
Mechanical Properties - 316
Product Form | Thickness mm max | Yield Strength | Yield Strength | Tensile Strength | Elongation | Elongation | Impact energy (ISO-V) Room Temperature 10mm or thicker | Impact energy (ISO-V) Room Temperature 10mm or thicker |
---|---|---|---|---|---|---|---|---|
0.2% | 1% | |||||||
Rp0.2 n/mm2 min | Rp1.0 N/mm2 min | Rm N/mm2 | A(1) % min (langs) | A(1) % min (quer) | J min. (längs) | J min. (quer) | ||
C | 6 | 240(3) | 270(3) | 530-680 (3) | - | 40 | - | - |
H | 12 | 220(3) | 260(3) | 530-680 (3) | - | 40 | 90 | 60 |
P | 75 | 220(3) | 260(3) | 520-670(3) | - | 45 | 90 | 60 |
L | 160 | 200(4) | 235(4) | 500-700 (4) | 40 | - | 100 | - |
L | 250(2) | 200(5) | 235(5) | 500-700 (5) | - | 30 | - | 60 |
T(w/s) | 60 | 240(6) | 240(6) | 500-700 (5) | 40 | 30 | 100 | 60 |
321 / 321H
Chemical compositions and mechanical properties for 321 / 321H.
Chemical Properties - 321 / 321H
Cr | Ni | C | Si | Mn | P | S | N | Ti | Fe | |
---|---|---|---|---|---|---|---|---|---|---|
321 | min:17.0 max:19.0 | min:9.0 max:12.0 | max: 0.08 | max: 0.75 | max: 2.0 | max: 0.045 | max: 0.03 | max: 0.10 | min:5*(C+N) max:0.70 | Balance |
321H | min:17.0 max:19.0 | min: 9.0 max:12.0 | min:0.04 max:0.10 | min:18.0 max:20.0 | max: 2.0 | max: 0.045 | max: 0.03 | max: 0.10 | min:5*(C+N) max:0.70 | Balance |
Mechanical Properties - 321 / 321H
Grade | Tensile Strength ksi (min.) | Yield Strength 0.2% Offset ksi (min.) | Elongation - % in 50 mm (min.) | Hardness (Brinell) MAX |
---|---|---|---|---|
321 | 75 | 30 | 40 | 217 |
347
Chemical compositions and mechanical properties for 347.
Chemical Compositions - 347
Element | % Present (in product form) |
---|---|
Carbon (C) | 0.08 |
Silicon (Si) | 1 |
Manganese (Mn) | 2 |
Phosphorous (P) | 0.045 |
Sulfur (S) | 0.015 |
Chromium (Cr) | 17.00 - 19.00 |
Nickel (Ni) | 9.00 - 12.00 |
Niobium (Nb) | 10xC to 1.00 |
Iron (Fe) | Balance |
Mechanical properties - 347
Product Form | Product Form | Product Form | Product Form | Product Form | Product Form | ||
---|---|---|---|---|---|---|---|
C | H | P | L | L | TW / TS | ||
Thickness (mm) Max | 8 | 13.5 | 75 | 160 | 250) | 60 | |
Yield Strength | Rp0.2 N/mm2 | 2203) | 2003) | 2003) | 2054) | 2056) | 2055) |
Yield Strength | Rp1.0 N/mm2 | 2503) | 2403) | 2403) | 2404) | 2406) | 2405) |
Tensile Strength | Rm N/mm2 | 520 - 7203) | 520 - 7203) | 500 - 7003) | 510 - 7404 | 510 - 7406 | 510 - 7405 |
Elongation min. in & | A1) %min (longitudinal) | - | - | - | 40 | - | 35 |
Elongation min. in & | A1) %min (transverse) | 40 | 40 | 40 | - | 30 | 30 |
Impact Energy (ISO-V) ≥ 10mm thick | Jmin (longitudinal) | - | 100 | 100 | 100 | - | 100 |
Impact Energy (ISO-V) ≥ 10mm thick | Jmin (transverse) | - | 60 | 60 | - | 60 | 60 |
410
Chemical compositions and mechanical properties for 410.
Chemical Compositions - 410
Grade | Grade | C | Mn | Si | P | S | Cr | Mo | Ni |
---|---|---|---|---|---|---|---|---|---|
410 | Min | - | - | - | - | - | 11.5 | - | - |
410 | Max | 0.15 | 1 | 1 | 0.04 | 0.03 | 13.5 | - | 0.75 |
Mechanical Properties - 410
Grade | Tensile Strength (MPa) min | Elongation (% in 50mm) min | Yield Strength 0.2% Proof (MPa) min |
---|---|---|---|
SS 410 | 480 | 16 | 275 |
422
Chemical compositions and mechanical properties for 422.
Chemical Compositions - 422
Grade | Grade | C | Si | Ni | S | Mn | P | Cr | Mo | V | Cu |
---|---|---|---|---|---|---|---|---|---|---|---|
SS 422 | Min | 0.2 | 0.2 | 0.5 | - | - | - | 11 | 0.75 | 0.17 | - |
SS 422 | Max | 0.25 | 0.6 | 1 | 0.03 | 1 | 0.04 | 13.5 | 1.25 | 0.3 | 0.5 |
Mechanical Properties - 422
Grade | Tensile Strength (MPa) min | Elongation (% in 50mm) min | Yield Strength 0.2% Proof (MPa) min | Hardness | Hardness |
---|---|---|---|---|---|
Rockwell B (HR B) max | Brinell (HB) max | ||||
SS 422 | 115 | 25 | 140 | 293 | 341 |
431
Chemical compositions and mechanical properties for 431.
Chemical compositions - 431
Min | Max | |
---|---|---|
Carbon | 0.12 | 0.2 |
Silicon | 0 | 1 |
Manganese | 0 | 1 |
Nickel | 1.25 | 3 |
Chromium | 15 | 18 |
Phosphorous | 0 | 0.04 |
Sulphur | 0 | 0.03 |
Mechanical properties - 431
Condition | Annealed | *T | |
---|---|---|---|
Tensile Strength (MPa) | Min | 850 | |
Max | 1000 | ||
0.2% Yield Strength (MPa) | Min | 635 | |
Elongation on 5.65√S0 % | Min | 11 | |
Izod Impact Valua J mm | Min | 63 34 | |
63 20 | |||
Hardness HB | Min | 248 | |
Max | 277 | 302 |
904L
Chemical compositions and mechanical properties for 904L.
Chemical Compositions - 904L
Element% | % Present (in product form) |
---|---|
Carbon (C) | 0.02 |
Silicon (Si) | 0.7 |
Manganese (Mn) | 2 |
Phosphorous (P) | 0.03 |
Sulfur (S) | 0.01 |
Chromium (Cr) | 19.00 - 21.00 |
Nickel (Ni) | 24.00 - 26.00 |
Nitrogen (N) | 0.15 |
Molybdenum (Mo) | 4.00 - 5.00 |
Copper (Cu) | 1.20 - 2.00 |
Iron (Fe) | Balance |
Mechanical properties - 904L
Product Form | Product Form | Product Form | Product Form | Product Form | Product Form | ||
---|---|---|---|---|---|---|---|
C | H | P | L | L | TW/TS | ||
Thickness (mm) Max. | 8 | 13.5 | 75 | 160 | 2502) | 60 | |
Yield Strength | Rp0.2 N/mm2 | 2403) | 2203) | 2203) | 2304) | 2305) | 2306) |
Yield Strength | Rp1.0 N/mm2 | 2703) | 2603) | 2603) | 2603) | 2603) | 2503) |
Tensile Strength | Rm N/mm2 | 530 - 7303) | 530 - 7303) | 520 - 7203) | 530 - 7304) | 530 - 7305) | 520 - 7206) |
Elongation min. in % | Jmin (Longitudinal) | - | 100 | 100 | 100 | - | 120 |
Elongation min. in % | Jmin (Transverse) | - | 60 | 60 | - | 60 | 90 |
ISO 3506-1 A4
Chemical compositions and mechanical properties for ISO 3506-1 A4.
Chemical compositions - ISO 3506-1 A4
C | Si | Mn | P | s | Cr | Mo | Ni | Cu | N | Other elements and notes | |
---|---|---|---|---|---|---|---|---|---|---|---|
A4 | 0,08 | 1,00 | 2,00 | 0,045 | 0,030 | 16,0 to 18,5 | 2,00 to 3,00 | 10,0 to 15,0 | 4,0 | - | h,i |
Mechanical properties - ISO 3506-1 A4
Property class | Tensile strength a Rmf min. MPa | Stress at 0,2 % non-proportional elongation b Rpf mm. MPa | Elongation after fracture A min. mm |
---|---|---|---|
50 | 500 | 210 | 0,6d |
70 | 700 | 450 | 0,4d |
80 | 800 | 600 | 0,3d |
100 | 1000 | 800 | 0,2d |
ISO 3506-1 A2
Chemical compositions and mechanical properties for ISO 3506-1 A2.
Chemical compositions - ISO 3506-1 A2
C | Si | Mn | P | S | Cr | Mo | Ni | Cu | N | Other elements and notes |
---|---|---|---|---|---|---|---|---|---|---|
A2 | 0,10 | 1,00 | 2,00 | 0,050 | 0,030 | 15,0 to 20,0 | _f | 8,o to 19,0 | 4,0 | g,h |
Mechanical properties - ISO 3506-1 A2
Stainless steel grade | Property class | Tensile strength a Rmf min. MPa | Stress at 0,2 % non-proportional elongation b Rpf mm. MPa | Elongation after fracture A min. mm |
---|---|---|---|---|
A2 | 50 | 500 | 210 | 0,6d |
A2 | 70 | 700 | 450 | 0,4d |
A2 | 80 | 800 | 600 | 0,3d |
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