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Nickle Alloy Bolt with MARK!
253MA S31805 hex square round head bolt price
RA 253 MA is a lean austenitic heat resistant alloy with high strength and outstanding oxidation resistance. It offers an excellent combination of creep strength along with excellent resistance to oxidation, sulfidation, and erosion at high temperatures in an alloy containing just 11% nickel. Because of its lean chemistry, RA 253 MA is very economical compared to most heat resistant alloys.
Chemical composition (nominal) % | ||||||||
C | Si | Mn | P | S | Cr | Ni | N | Ce* |
0.08 | 1.6 | ≤0.8 | ≤0.040 | ≤0.030 | 21 | 11 | 0.17 | 0.05 |
* To cerium should be added the quantity of other rare earth metals, since the the additive takes the form of misch metal containing about 50% Ce.
Mechanical Properties
Typical mechanical properties for grade 253MA stainless steels are given in table 2.
Table 2. Mechanical properties of 253MA grade stainless steel
Tensile Str (MPa) min | Yield Str 0.2% Proof (MPa) min | Elongation (% in 50mm) min | Hardness | |
Rockwell B (HR B) max | Brinell (HB) max | |||
600 | 310 | 40 | 95 | 217 |
Physical Properties
Typical physical properties for grade 253MA stainless steels are given in table 3.
Table 3. Physical properties of 253MA grade stainless steel
Density (kg/m3) | Elastic Modulus (GPa) | Mean Coefficient of Thermal Expansion (mm/m/°C) | Thermal Conductivity (W/m.K) | Specific Heat | Electrical Resistivity (nW.m) | |||
0-100°C | 0-600°C | 0-1000°C | at 20°C | at 1000°C | ||||
7800 | 200 | 17.0 | 18.5 | 19.5 | 15.0 | 29.0 | 500 | 850 |
Competitive price!
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We can produce bolt,nut.U bolt,threaded rod,washers,flange according to standard or drawing
253MA hex bolt
SS30815 hex bolt
1.4835 Hex cap screw
1. Standard: DIN931/933/603/444, ISO4014/4017/8677, ASME B18.2.1, A325, A325M
2. Material: 1.4835 , S31805 , 253MA
3. Size: M6-64mm,1/4"-2 1/2"
4. Delivery time: 30 days
| Matrerial are valid | stainless steel,SS310,SS310S,904L,1.4529,AL-6XN,Duplex2205/2507,254Smo HastelloyC4/22/276/C2000,B2/B3,G3/G30,X Monel400/k500, Inconel600/601/625/690/718/X750 Incoloy800/800H/800HT/825/901/925/926 Nimonic80A , alloy20 , alloy28 , alloy286 Titanium alloy |
| Advantages | Small order are accepted Producing customized Many material are valid Fast service,professional service by 10 years experienced sales |
