Manufacturer of Stainless Steel 310H Buttweld Fitting

BAHUBALI Alloys are a pioneer in Indian markets for a long time in the field of assembling of Stainless Steel 310H Buttweld Fittings that are required by the oilfield, petrochemical and additionally different procedure commercial enterprises. With our name synonymous with fantastic assembling, accuracy machining and unparalleled commitment to quality magnificence, we have consistently kept up our position in the fore front of oil industry.


Table 1. Composition ranges for Stainless Steel 310H Buttweld Fittings

Grade 310H Fe Cr Ni Mn Si C P S
min. 48.3 24.0 19.0 - - - - -
max. 57.0 26.0 22.0 2.0 1.5 0.08 0.045 0.03

Table 2. Mechanical properties of Stainless Steel 310H Buttweld Fittings

Grade Tensile Strength (MPa) min Yield Strength 0.2% Proof (MPa) min Elongation (% in 50mm) min Hardness
Rockwell B (HR B) max Brinell (HB) max
310H 620 310 30 90 198
310H also has a requirement for a grain size of ASTM No 7 or coarser.

Table 3. Physical properties of Stainless Steel 310H Buttweld Fitting in the annealed condition

Density (kg/m3) Elastic Modulus (GPa) Mean Coefficient of Thermal Expansion (m/m/0C) Thermal Conductivity (W/m.K) Specific Heat 0-1000C (J/kg.K) Electrical Resistivity (n.m)
0-1000C 0-3150C 0-5380C at 1000C at 5000C
8.0 200 16 - 500 16 16 500 25

Table 4. Grade specifications for Stainless Steel 310H Buttweld Fittings

Grade UNS No Old British Euronorm Swedish SS Japanese JIS
BS En No Name
310H S31008 - - - X10CrNi18-8 - -
These comparisons are approximate only. The list is intended as a comparison of functionally similar materials not as a schedule of contractual equivalents. If exact equivalents are needed original specifications must be consulted.

Table 5. Standard specifications for Stainless Steel 310H Buttweld Fittings

Designation ASTM A403, ASME SA403
Size Seamless 1/2" to 24" , Welded 1/2" to 24", Two Joint / Two Halve Fittings 6" to 48"
Schedules 5s, 10s, 40s, 80s, 10, 20, 40, STD, 60, 80, XS, 100, 120, 140, 160, XXS
Wall Thickness Sch. 5S To Sch. XXS
Type Seamless / Welded / Fabricated
Grade ASTM A403 WP 310H

Types of Stainless Steel 310H Buttweld Fittings

   SS 310H Short & Long Stub Ends
   SS 310H Seamless Buttweld Pipe Fittings
   SS 310H Piggable Bends
   SS 310H Pipe End Caps
   SS 310H Split Tees
   SS 310H Welded Buttweld Pipe Fittings

   SS 310H 90 & 45 Deg Elbows
   SS 310H Equal & Unequal Cross
   SS 310H Long & Short Radius Elbows
   SS 310H Equal & Unequal Tees
   SS 310H Concentric & Eccentric Reducer
   SS 310H Bends

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  •         47, 2st Carpenter Street
  •         Near C.P. Tank Road,
  •         Mumbai – 400 004,
  •         INDIA
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