Heubach International is a highly acclaimedname in the universal market for manufacturing of best qualityduplex steel fasteners. Each piece of our duplex steelfasteners is developed in our sound infrastructure using top graderust resistant steel to provide the clients long life service. Ourrange of stainless steel fasteners is used in various industrialoperations.
Specifications:
- Standards: ASTM / ASME SA 790
- Grades: UNS NO. S 31803, S 32205, S 32550, S32750, S 327
Types:
Industrial bolts:
Stud bolts, hex head bolts,socket hexagon head screw anchor bolts, u-bolts, j bolts, mushroomhead square neck bolts, t- head bolts, wing screw bolts, eye bolts,eye bolts, foundation bolts, structural bolts,
Industrial nuts:
Hexagon nuts, hexagon couplingnuts, hexagon thin nuts, square nuts, hexagon castle nuts, selflocking nut, hexagon domed cap nuts.
Industrial washers:
Plain washer, plain big& small washers, spring lock washers, spring washers heavyduty, tooth washers, star washers, tab washer with one & twotab
Industrial Screws:
Pan Head Slotted Screws,Hexagon Head Screws, Cheese Head Slotted Screws, Countersunk HeadSlotted Screws, Countersunk Raised Head Slotted Screws, PanPhillipse Head Screws, Countersunk Phillipse Raised Head Screws,32750 end cap | We are one of the highly acclaimed names in the market fordesigning and manufacturing a comprehensive variety of stainlessand duplex steel fasteners. Manufactured in accordance with setindustrial norms, these fasteners are stringently checked andperfect on all quality parameters. Our extensive range of drainedplugs are designed carefully by our experienced engineers who havea sound knowledge about these components. |
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| ASTM / ASME A 193 B 8( 304 )B 8C( SS 347 ) B 8M( SS 316 )B 8 T( SS 321 ), A 2, A 4 // ASTM / ASME A 194B 8 ( 304 ), B 8C ( SS 347 ), B 8M ( SS 316 ), B 8T ( SS 321). |
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Standards - ASTM/ASME A815 UNS31803, UNS31254, UNS S32750, and S32760
Type - Hot Forged and Cold Forged
Shapes - Bolts Hex Head Bolts, Hexagon Head Screw ,Mushroom Head Square Neck Bolts , T- Head Bolts , Wing Screw , EyeBolt , Lifting Eye Bolt
- Screw Pan head slotted screws , cheese headslotted screws , countersunk head slotted screws , countersunkraised head slotted screws , pan phillipse head screw , countersunkphillipse raised head screws , slotted cheese trim head machinescrews , socket head allen cap screws , allen countersunk sockethead cap screws , socket head shoulder screws , socket head capscrew low head , hexagon socket set screw with flat point , hexagonsocket set screws with cone point , hexagon socket set screw withdog point , hexagon socket set screws with dog point , hexagonsocket set screws with cup point , imprial socket cap screws
- Nuts Hexagon nuts, hexagon coupling nuts ,hexagon thin nut , square nut , hexagon castle nuts , self lockingnut , hexagon domed cap nuts
- Washer Plain washer , plain big od washer ,plain small od washer , spring lock washer , spring washer heavyduty , tooth washer , serrated star washer , tab washer with onetab , tab washer with two tab
CompositionTypical compositional ranges for grade 2205 stainless steels are given in table 1. Table 1. Composition ranges for2205 grade stainless steels. Grade | | C | Mn | Si | P | S | Cr | Mo | Ni | N | 2205 (S31803) | Min Max | - 0.030 | - 2.00 | - 1.00 | - 0.030 | - 0.020 | 21.0 23.0 | 2.5 3.5 | 4.5 6.5 | 0.08 0.20 | 2205 (S32205) | Min Max | - 0.030 | - 2.00 | - 1.00 | - 0.030 | - 0.020 | 22.0 23.0 | 3.0 3.5 | 4.5 6.5 | 0.14 0.20 |
Mechanical PropertiesTypical mechanical properties for grade 2205 stainless steels are given in table 2. Table 2. Mechanical properties of 2205 grade stainless steels Grade | Tensile Str (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (%in 50mm) min | Hardness | Rockwell C (HR C) | Brinell (HB) | 2205 | 620 | 450 | 25 | 31 max | 293 max | Note: Mechanicalproperty requirements for S31803 and S32205 areidentical. |
Physical PropertiesTypical physical properties for grade 2205 stainless steels are given in table 3. Table 3. Typical annealedcondition physical properties for 2205 grade stainless steels Grade | Density (kg/m3) | Elastic Modulus (GPa) | Mean Co-eff of Thermal Expansion (mm/m/°C) | Thermal Conductivity (W/m.K) | Specific Heat 0-100°C (J/kg.K) | Electrical Resistivity (nW.m) | 0-100°C | 0-315°C | 0-538°C | at 100°C | at 500°C | 2205 | 7805 | 200 | 13.7 | 14.7 | - | 19 | - | 450 | 850 | Note: Physicalproperties of S31803 and S32205 are identical. |
Grade Specification ComparisonApproximate grade comparisons for 2205 stainless steels are given in table 4. Table 4. Grade specification comparisons for 2205 grade stainless steels Grade | UNS No | Old British | Euronorm | Swedish SS | Japanese JIS | BS | En | No | Name | 2205 | S31803 / S32205 | 318S13 | - | 1.4462 | X2CrNiMoN22-5-3 | 2377 | SUS 329J3L | Note: Thesecomparisons are approximate only. The list is intended asa comparison of functionally similar materialsnot as a schedule of contractual equivalents. Ifexact equivalents are needed originalspecifications must be consulted. |
Possible Alternative GradesPossible alternative grades to grade 2205 stainless steels are given in table 5. Table 5. Grade specification comparisons for 2205 grade stainless steels Grade | Why it might be chosen instead of2205 | 904L | Better formability is needed, with similar corrosion resistance andlower strength. | UR52N | High resistanceto corrosion is required, eg resistance to highertemperature seawater. | 6%Mo | Higher corrosion resistance isrequired, but with lower strength and betterformability. | 316L | The highcorrosion resistance and strength of 2205 are not needed… 316Lis lower cost. |
Corrosion Resistance | Excellent general corrosion resistance; superior to Grade 316 in most environments. Excellent resistance to localisedcorrosion including intergranular, pitting and crevicecorrosion; the CPT of 2205 is generally at least 35°C. Thegrade is also resistant to chloride stress corrosion cracking(SCC) at temperatures of up to about 150°C. Grade 2205 willoften perform well in environments which cause premature failureof austenitic grades. It has better resistance to sea waterthan grade 316. Heat ResistanceAlthough 2205 has good high temperature oxidation resistance this grade, like other duplex stainless steels, suffersfrom embrittlement if held for even short times attemperatures above 300°C. If embrittled this can only berectified by a full solution annealing treatment. Duplexstainless steels are almost never used above 300°C. Heat TreatmentSolution treatment (annealing) - heat to 1020-1100°C and cool rapidly. This grade cannot be hardened by thermal treatment,but does work harden |
Applications | Typical Applications include: • Chemical processing, transport and storage. • Oil and gas exploration and processing equipment • Marine and other high chloride environments • Pulp and paper digesters, liquor tanks and paper machines |
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