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 TECHNICAL DATAS   

INDUSTRY

Stainless steels
Correspondences

FOOD INDUSTRY

Joint properties
Stainless steels
Correspondences

FASTENERS

Classification
Torques
Reminders
Threads

NORMS CHEMICAL COMPOSITION
AISI
(usa)
AFNOR
(france)
      C% Ni% Cr% Mo%
304 Z6CN18/09 1-4301 X5CrNi 18-10 0,06 8-10 17-19 -
304L Z2CN18/10 1-4307 X2CrNi 18-9 0,03 8-10 18,5-19 -
316 Z6CND17/11 1-4401 X5CrNiMo 17-12-02 0,06 10-13 16,5-18 2-2,5

Basic precautions to follow when using stainless steel :
  • Do not store with ferrous metals
  • Do not clean with products containing chlorine ions
  • Carry out welding in a neutral atmosphere (Argon)

Thread profile
BSPP/cylindrical gas


H = 0,9604 x spacing
h = 0,6403 x spacing
r = 0,1373 x spacing

Thread profile
BSPT/conical gas


H = 0,9604 x spacing
h = 0,6403 x spacing
r = 0,1373 x spacing
conicity
= 6,25%

Thread profile
NPT


H = 0,866 x spacing
h = 0,800 x spacing
conicity
= 6,25%

Ø
NOMINAL
DN
Ø
TUBE
Millimetre
Ø
THREAD
Inches
FORMER
DESCRIPTION
THREAD
GAS/BSP
THREAD
NPT
NO. LINES/INCH SPACING
NO. LINES/INCH SPACING
5 10,2 1/8" 5X10 28 0,907 27 0,940
8 13,5 1/4" 8X13 19 1,337 18 1,411
10 17,2 3/8" 12X17 19 1,337 18 1,411
15 21,3 1/2" 15X21 14 1,814 14 1,814
20 26,9 3/4" 20X27 14 1,814 14 1,814
25 33,7 1" 26X34 11 2,309 11,5 2,209
32 42,4 1"1/4 33X42 11 2,309 11,5

2,209

40 48,3 1"1/2 40X49 11 2,309 11,5 2,209
50 60,3 2" 50X60 11 2,309 11,5 2,209
65 76,1 2"1/2 66X76 11 2,309 8 3,175
80 88,9 3" 80X90 11 2,309 8 3,175
100 114,3 4" 102X114 11 2,309 8 3,175
125 139,7 5" 127X140 11 2,309 8 3,175
150 168,3 6" 152X165 11 2,309 8 3,175
200 219 8"          

SHELLS TEMPERATURE
MIN-MAX
RECOMMENDED
RANGE
APPLICATION NOT RECOMMENDED
EPDM -40° + 130 - 20 ° + 110 ° Cold water and hot water, sea water, air, alkalines, sodium hydroxide with hydrocarbons
BUNAN -26° + 90° - 15° + 60° Non aromatic hydrocarbons, natural gas, lubricants, oils, gycol air In atmospheric atmosphere,
premium grade petrol, solvents
PERBUNAN -40° + 130° -20° + 100 °    
FKM -20° + 200 -20° + 150° Acids, lubricants, premium grade petrol hydrocarbons With steam and hot water (130° max.)
freon, alkaline
SILICONES -60° + 200° -25° + 140° Food, high temperature In steam and hot water (100° max.), solvents
P.T.F.E -40° +200° -40° +180° Chemicals Steam, fluorinated products

NORMS CHEMICAL COMPOSITION
AISI
(usa)
AFNOR
(france)
      C% Ni% Cr% Mo%
304 Z6CN18/09 1-4301 X5CrNi 1810 0,06 8-10 17-19 -
304L Z2CN18/10 1-4307 X2CrNi 189 0,03 8-10 18,5-19 -
316 Z6CND17/11 1-4401 X5CrNiMo 17-12-02 0,06 10-13 16,5-18 2-2,5

Basic precautions to follow when using stainless steel :
  • Do not store with ferrous metals
  • Do not clean with products containing chlorine ions
  • Carry out welding in a neutral atmosphere (Argon)

Clamp/Sms
Macon
Din
Spherical

STANDARD FASTENERS NUANCE TAKEN FROM OUR DOCUMENTATION
  AUSTENITIQUE Rr values (tensile strength) and
Re values (elastic limit resistance)
Expressed in Newtons / mm2
  AISI AFNOR European
Norm
En 10088-3
Rr Re A% TEXT
A1 302 Z10
CN
18.09
X12
NI 18.8
1.4300 600 225 35 CR-NI steel cannot be hardened, but machines well and is resistant to rutting due to its sulphur content. Non-magnetic in annealed state, slightly magnetic if machined cold. Not suitable for welding
303 Z10
CNF
18.09
X10
Cr Ni
S 18.09
1.4305 600 225 35 CR-NI steel cannot be hardened but machines well and is resistant to rutting due to its sulphur content. Non-magnetic in annealed state slightly magnetic if machined cold. Not suitable for welding
A2 304 Z6
CN
18.09
X5
Cr Ni
18.10
1.4301 700 190 45 CR -NI steel, cannot be hardened; corrosion resistant. Non-magnetic in annealed state, slightly magnetic if machined cold. Welds well and discretely resistant to intercrystalline corrosion
305 Z8 CN
18 12
X8
Cr Ni
18 12
1.4303 700 190 45 CR-NI steel cannot be hardened. Has a particularly stable structure; as such, it is less sensitive to strain hardening. It is therefore more suitable for cold heading than the other austenitic steels
A4 316 Z6
CND
17 11
X5
Cr Ni Mo
17 12
1.4401 700 200 40 CR-NI-MO steel, cannot be hardened, the presence of Mo makes it resistant to corrosion. Its mechanical properties are better than those of similar stainless steels without MO at high temperatures

FASTENERS NUANCE ON SPECIAL REQUEST
  AUSTENITIC
  AISI   AFNOR   European
Norm En 10088-3
  Rr   Re   A%    
A2 304L Z2
CN
18 10
X2
Cr Ni
18 11
1.4306 600 175 45 CR-NI steel, with low C content, cannot be hardened but is particularly suitable for welding. Very high intercrystalline resistance. Use up to 425° C
309 Z15
CN
24 13
X15
Cr Ni
23 14
1.4828 540 245 30 Heat resistant CR-NI steel (NS 24), cannot be hardened, extremely resistant to high temperatures and oxidation: oxidising atmosphere 1050° C, sulphurous oxidising agent 1000° C, sulphurous reducing agent 850° C
310 Z12
CN
25 20
X12
Cr Ni
25 20
1.4845 540 245 30 Heat resistant CR-NI steel (NS30), cannot be hardened, non-magnetic. Extremely resistant to high temperatures normally up to 1100° C but always with less than 2g /m3 of sulphur
321 Z6
CNT
18 11
X6
Cr Ni
18 11
1.4541 600 190 40 CR-NI steel stabilised with TI, cannot be hardened, non-magnetic. Particularly suitable for welding and for temperatures between 400 and 800° C inclusive. It is sensitive to intercrystalline corrosion
  AUSTENITIC
  AISI AFNOR European
Norm
En 10088-3
Rr Re A%  
A4 316L Z2
CND
18 12
X2
Cr Ni
17 12
1.4404 600 200 45 CR-NI-MO steel
with low C content, cannot be hardened but is particularly suitable for welding. Extremely resistant to intercrystalline corrosion. Can be used normally up to 450° C
316L MO+ Z6
CND
17 11
X2
Cr Ni Mo 17 12
1.4435 600 200 40 CR-NI-MO steel with very low C content, cannot be hardened. Particularly suitable for welding. Extremely resistant to intercrystalline corrosion. Can be used normally up to 450° C
316TI Z6 CNDT 17 12 X5
Cr Ni Mo 17 12
1.4571 600 200 40 Cr-Ni-Mo-Ti steel,
cannot be hardened. The Mo and Ti make it insensitive to intergranular corrosion. Its mechanical properties are better than those of similar stainless steel without Mo. Creep resistance
700° C
904L Z1
NCDU
25 20
X2
Ni Cr Mo Cu
25 20 5
1.4539 630 230 35 Super austenitic steel (UB6), excellent intergranular resistance; behaves very well in highly aggressive environments, particularly phosphoric, sulphuric and chlorinated
DUP
LEX
Z3
CND 22
05 3
X2
Cr Ni
Mo Cu
22 5 3
1.4462 750 450 25 Austeno-ferritic steel, very high mechanical resistance, resists intergranular corrosion
  MARTENSITIC
  AISI AFNOR European
Norm
En 10088-3
Rr Re A%  
C 410 Z10
C13
X12
Cr 13
1.4006 650     Cr steel suitable for hardening. Heat treatment improves its mechanical properties. High resistance to corrosion on polished surfaces, in moderately aggressive environments.
416 Z12
CF 13
X12
Cr S 13
1.4005 650     Cr steel suitable for hardening, improved machining and good resistance to rutting due to its sulphur content. Particularly suitable for bar turning
420 Z 20
C 13
X 20
Cr 13
1.4021 600     Cr steel suitable for hardening. Hardness up to 950 N / mm2. Is most resistant to corrosion in hardened state and after polishing.
630 Z7
CNU
17 04
X5 Cr
Ni Cu
Nb 16
4
1.4542 800 520 18 Cr –Ni structural hardening steel (F16 PH), very high mechanical resistances up to 1400/ mm2. Very resistant to corrosion.
  FERRITIC
  AISI AFNOR European
Norm
En 10088-3
Rr Re A%  
F 430 Z8
C
17
X8
Cr 17
1.4016 550 245 18 Cr steel suitable for hardening. Highly resistant to cold corrosion in moderately aggressive environments. Suitable for cold bending
430 F Z10
CF
17
X10
Cr S
1.4104 550 245 15 Cr steel, cannot be hardened but improved machining. Used for bar turning.
OTHER POSSIBILITIES ON REQUEST
WITHWORTH. UNC. UNF. THREADS AND HASTELLOY.INCONEL.MONEL.URANUS.TITANIUM NUANCES...

IMPORTANT
For all special parts made, tolerances are allowed for quantities delivered as defined by the NFE norm, i.e :
  • From one to 199 parts:+ 10%
  • From 200 to 499 parts: + 8% 
  • From 500 to 9999 parts: + 5% of quantities
  • > 10000+ 2%

ISO metric profile
( 60° profil )
D = d = Nominal diam
D1 = D - 1,0825 x spacing
D2 = D - 0,6495 x spacing
d3 = D - 1,2268 x spacing
H = 0,866 x spacing
H1 = 0,5412 x spacing
r = 0,1443 x spacing

 

Whitworth profile
(main property its 55° profile and dimensions in inches: = 25.4 mm)
H = 0,960491 x spacing
h = 0,640327 x spacing
R = 0,137329 x spacing

UNC. UNF profile
(60° profile but dimensions in inches: = 25.4 mm)

TENSILE STRENGTH :
the material's resistance until the sample breaks completely, measured in Newtons / mm2
ELASTIC LIMIT :
the maximum load to be applied to the sample until it is distorted
STRETCHING :
the amount the screw stretches after breaking, expressed as a % of the initial length
A2 70 :
refers to an Austenitic stainless steel (see table below) with tensile strength of 700 N / mm2
A4 70 :
refers to an Austenitic stainless steel (see table below) with tensile strength of 700 N /mm2
A4 80 :
refers to an Austenitic stainless steel with tensile strength of 800 N /mm2

Dim.   M3   M4   M5   M6   M8   M10   M12   M14   M16   M18   M20   M22   M24   M27   M30   M33   M36
Nugget interface in mm2 5,03 8,78 14,2 20,1 36,6 58 84,3 115 157 175 245 281 353 459 561 577 817
Couple From interface in Nm 0,9 2 4,1 7 17 33 57 91 140 190 273 370 472 682 330 1250 1620
Elastic limit in KN 2,2 3,9 6,4 9 16,4 26,1 37,9 51,8 70,6 76,5 110,2 122,9 158,8 206,6 252,5 262 367,7
Limit from breaking point in KN 2,5 4,4 7,1 10 18,3 29 42,1 57,5 78,5 87,5 122,5 145 176,5 229,5 280,5 288,5 408,5

 

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