MANUFACTURER & EXPORTER OF STAINLESS STEEL SEAMLESS PIPES & TUBES AND HIGH NICKEL ALLOYS PIPES , HEAT EXCHANGER TUBES
   
  304/L PIPES , 316/L PIPES , 321 PIPES , 317L PIPES , 347 PIPES , 904L TUBES ,
INCONEL 625 TUBES , INCONEL 825 TUBES , MONEL 400 TUBES , A 106 GR B , A336 GR 6
PIPES , API-5LGR.B/X42/X46/X52/X60/X65/X75 , ASTM A335 GR. P-1/P-2/P-5/P-9/P-11/
P-12/P-22/P-91/P-92/P-122

Manufacturer, Supplier & Exporter of 410 tubos de acero inoxidable | 410 Stainless Steel pipa | 410 paip keluli
     
 
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ASTM A213 AISI TP410 Stainless Steel Pipes & Tubes  
Manufacturer, Supplier & Exporter of 410 Stainless Steel Pipes & Tubes, 410 tubos de acero inoxidable | 410 Stainless Steel pipa | 410 paip keluli in India
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Grades
: Type 304 | Type 304L | Type 304H | Type 310 | Type 316 | Type 316L | Type 316H | Type 321 | Type 347  |  Type 410  |

Product Range

Specifications: ASTM A/ASME SA213/A249/A269/A312/A358 CL. I to V ASTM A789/A790
Sizes (Seamless): 1/2” NB - 24” NB
Sizes (ERW): 1/2” NB - 24” NB  
Sizes (EFW): 6” NB - 100” NB  
   

Wall Thickness available:
Schedule 5S - Schedule XXS (heavier on request)


 Other Materials Testing:

 NACE MR0175, H2 SERVICE, OXYGEN SERVICE, CRYO SERVICE, etc.



Dimensions:

All Pipes is manufactured and inspected/tested to the relevant standards including ASTM, ASME and API etc.


Composition

Typical compositional ranges for grade 304 stainless steels are given in table 1.

Table 1. Composition ranges for 304 grade stainless steel



Grade
  C Mn Si P S Cr Mo Ni N
304 min. - - - - - 18.0 - 8.o -
max. 0.08 2.0 0.75 0.045 0.030 20.0 - 10.5 0.10
304L min. - - - - - 18.0 - 8.o -
max. 0.030 2.0 0.75 0.045 0.030 20.0 - 12.0 0.10
304H min.

0.04

- - - - 18.0 - 8.o -
max. 0.10 2.0 0.75 0.045 0.030 20.0 - 10.5 -


Mechanical Properties

Typical mechanical properties for grade 304 stainless steels are given in table 2

Table 2. Mechanical properties of 304 grade stainless steel

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
304 515 205 40 92 201
304L 485 170 40 92 201
304H 515 205 40 92 201
304H also has a requirement for a grain size of ASTM No 7 or coarser.


Physical Properties

Typical physical properties for annealed grade 304 stainless steels are given in table 3.

Table 3. Physical properties of 304 grade stainless steel in the annealed condition

Grade Density (kg/m3) Elastic Modulus (GPa) Mean Coefficient of Thermal Expansion (m/m/°C) Thermal Conductivity (W/m.K) Specific Heat 0-100°C (J/kg.K) Electrical Resistivity (n.m)
0-100°C 0-315°C 0-538°C at 100°C at 500°C
304/L/H 8000 193 17.2 17.8 18.4 16.2 21.5 500 720


Grade Specification Comparison

Approximate grade comparisons for 304 stainless steels are given in table 4.

Table 4. Grade specifications for 304 grade stainless steel

Grade UNS No Old British Euronorm Swedish SS Japanese JIS
    BS En No Name    
304 S30400 304S31 58E 1.4301 X5CrNi18-10 2332 SUS 304
304L S30403 304S11 - 1.4306 X2CrNi19-11 2352 SUS 304L
304H S30409 304S51 - 1.4948 X6CrNi18-11 - -
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.


Corrosion Resistance

Excellent in a wide range of atmospheric environments and many corrosive media. Subject to pitting and crevice corrosion in warm chloride environments, and to stress corrosion cracking above about 60°C. Considered resistant to potable water with up to about 200mg/L chlorides at ambient temperatures, reducing to about 150mg/L at 60°C.


Heat Resistance

Good oxidation resistance in intermittent service to 870°C and in continuous service to 925°C. Continuous use of 304 in the 425-860°C range is not recommended if subsequent aqueous corrosion resistance is important. Grade 304L is more resistant to carbide precipitation and can be heated into the above temperature range.

Grade 304H has higher strength at elevated temperatures so is often used for structural and pressure-containing applications at temperatures above about 500°C and up to about 800°C. 304H will become sensitised in the temperature range of 425-860°C; this is not a problem for high temperature applications, but will result in reduced aqueous corrosion resistance



Heat Treatment

Solution Treatment (Annealing) - Heat to 1010-1120°C and cool rapidly.
These grades cannot be hardened by thermal treatment.


Source : Atlas Steel Australia and MA Steel UK


Background

Grade 410 is the basic martensitic stainless steel; like most non-stainless steels it can be hardened by a "quench-and-temper" heat treatment. It contains a minimum of 11.5 per cent chromium, just sufficient to give corrosion resistance properties. It achieves maximum corrosion resistance when it has been hardened and tempered and then polished. Grade 410 is a general purpose grade often supplied in the hardened, but still machinable condition, for applications where high strength and moderate heat and corrosion resistance are required.
Martensitic stainless steels are optimised for high hardness, and other properties are to some degree compromised. Fabrication must be by methods that allow for poor weldability and usually the need for a final heat treatment. Corrosion resistance of the martensitic grades is lower than that of the common austenitic grades, and their useful operating temperature range is limited by their loss of ductility at sub-zero temperatures and loss of strength by over-tempering at elevated temperatures.



Composition

Typical compositional ranges for grade 410 stainless steels are given in table 1.

Table 1. Composition ranges for 410 grade stainless steel

Grade   C Mn Si P S Cr Mo Ni N
410 min. - - - - -   - - -
max. 0.15 1.00 1.00 0.040 0.030 13.5 - 0.75 -


Mechanical Properties

Typical mechanical properties for grade 410 stainless steels are given in table 2.

Table 2. Mechanical properties of 410 grade stainless steel

Tempering Temperature (°C) Tensile Strength (MPa) Yield Strength 0.2% Proof (MPa) Elongation (% in 50mm) Hardness Brinell (HB) Impact Charpy V (J)
Annealed * 480 min 275 min 16 min - -
204 1310 1000 16 388 30
316 1240 960 14 325 36
427 1405 950 16 401 #
538 985 730 16 321 #
593 870 675 20 255 39
650 755 575 23 255 80

* Annealed properties are specified for Condition A of ASTM A276, for cold finished bar.
# Due to associated low impact resistance this steel should not be tempered in the range 425-600°C



Physical Properties

Typical physical properties for annealed grade 410 stainless steels are given in table 3.

Table 3. Physical properties of 410 grade stainless steel in the annealed condition

Grade Density (kg/m3) Elastic Modulus (GPa) Mean Coefficient of Thermal Expansion
(m/m/°C)
Thermal Conductivity
(W/m.K)
Specific Heat 0-100°C
(J/kg.K)
Electrical Resistivity (n.m)
      0-100°C 0-315°C 0-538°C at 100°C at 500°C    
410 7750 200 9.9 11.4 11.6 24.9 28.7 460 570


Grade Specification Comparison

Approximate grade comparisons for 410 stainless steels are given in table 4.

Table 4. Grade specifications for 410 grade stainless steel

Grade UNS No Old British Euronorm Swedish SS Japanese JIS
BS En No Name
410 S41000 410S21 56A 1.4006 X12Cr13 2302 SUS 410
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.


Corrosion Resistance

410 resists dry atmosphere, fresh water, mild alkalies and acids, food, steam and hot gases. Must be hardened for maximum heat and corrosion resistance. Performance is best with a smooth surface finish. Less corrosion resistant than the austenitic grades and also less than 17% chromium ferritic alloys such as Grade 430.
.
Heat Treatment
Annealing
Full anneal - 815-900°C, slow furnace cool to 600°C and then air cool.
Process Anneal - 650-760°C and air cool.


Applications

Typical applications include:
  • Bolts
  • Nuts
  • Screws
  • Bushings
  • Pump and valve parts and shafts
  • Steam and gas turbine parts
  • Petroleum fractionating towers
  •  Mine ladder rungs

 



 
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