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Manufacturers, Exporters, Stockist India & Suppliers Worldwide

Stainless steel, carbon steel, alloy steel, nickel, other ferrous & non-Ferrous metals in shape of Pipes, Tubes, Pipe Fittings, Flanges, Fasteners from India

Ashtapad is India's one of the leading steel flanges manufacture specialize in din flanges steel flanges asme flanges stainless flanges and others products Stainless steel, Carbon steel, Alloy steel, Nickel, Other Ferrous & Non-Ferrous metals In Shape Of Pipes, Tubes, Pipe Fittings, Flanges, Fasteners Etc.



1.4000410 SS41008Z 8 C 12 8,00


1.4002405S40500Z 8 CA 12 8,00


1.4005416S41600Z 13 CF 13 8,00


1.4006410S41000Z 10 C 13 8,00


1.4016430S43000Z 8 C 17 8,00


1.4021420S42000Z 20 C 13 8,00
X15Cr131.4024420 SJ91201Z 15 C 13 8,00
X30Cr131.4028420J91153Z 33 C 13 8,00
X46Cr131.4034(420) Z 44 C 14 8,00
X19CrNi17.21.4057431S43100Z 15 CN 16.02 8,00
X14CrMoS171.4104430 FS43020Z 13 CF 17 8,00
X90CrMoV181.4112440 BS44003Z 90 CDV 18 8,00
X39 CrMo17.11.4122  Z 38 CD 16.01 8,00
X105CrMo171.4125440 CS44004/S44025Z 100 CD 17 8,00
X5CrTi171.4510430 TiS43036/S43900Z 4 CT 17 8,00
X5CrNiCuNb16.41.4542/1.4548630S17400Z 7 CNU 17.0417.4 PH8,00
X7CrNiAl17.71.4568631S17700Z 9 CNA 17.0717.7 PH8,00
Cr + Ni
X5CrNi18.101.4301304S30400Z 6 CN 18.09 8,00
X5CrNi18.121.4303305 Z 8 CN 18.12 8,00
X10CrNiS18.91.4305303S30300Z 10 CNF 18.09 8,00
X2CrNi19.111.4306304 LS30403Z 3 CN 18.10 8,00
X12CrNi17.71.4310301S30100Z 11 CN 18.08 8,00
X2CrNiN18.101.4311304 LNS30453Z 3 CN 18.10 Az 8,00
X1CrNi25.211.4335310 L Z 1 CN 25.20URANUS 65/ SS25L8,00
X1CrNiSi18.151.4361 S30600Z 1 CNS 17.15URANUS S1/ ANTINIT8,00
X6CrNiTi18.101.4541321S32100Z 6 CNT 18.10 8,00
X6CrNiNb18.101.4550347 (H)S34700Z 6 CNNb 18.10 8,00
Cr + Ni + Mo
X5CrNiMo17.12.21.4401316S31600Z 7 CND 17.11.02 8,00
X2CrNiMo17.13.21.4404316 LS31603Z 3 CND 18.12.02 8,00
X2CrNiMoN17.12.21.4406316 LNS31653Z 3 CND 17.11 Az 8,00
X2CrNiMoN17.13.31.4429316 LN (Mo+)(S31653)Z 3 CND 17.12 Az 8,00
X2CrNiMo18.14.31.4435316 L (Mo+)S31609Z 3 CND 18.14.03 8,00
1.4436316 (Mo+) Z 6 CND 18.12.03 8,00
X2CrNiMo18.16.41.4438317 LS31703Z 3 CND 19.15.04 8,00
X2CrNiMoN17.13.51.4439317 LNMS31726Z 3 CND 18.14.05 Az 8,00
X5CrNiMo17.131.4449(317) Z 6 CND 17.12.04 8,00
X1CrNiMoN25.25.21.4465 N08310/S31050Z 2 CND 25.25 Az 8,00
X1CrNiMoN25.22.21.4466 S31050Z 2 CND 25.22 Az 8,00
X4NiCrMoCuNb20.18.21.4505  Z 5 NCDUNb 20.18 8,00
X5NiCrMoCuTi20.181.4506  Z 5 NCDUT 20.18 8,00
X1NiCrMoCuN25.20.61.4529 N08926 19.25 HMo8,00
X1NiCrMoCu25.20.51.4539904 LN08904Z 2 NCDU 25.20URANUS B6 / 2 RK 658,00
X1CrNiMoCuN20.18.71.4547 S31254Z 1 CNDU 20.18 Az254 SMO8,00
X1NiCrMoCu31.27.41.4563 N08028Z 1 NCDU 31.27.03SANICRO 288,00
X2CrNiMnMoNbN S34565 4565 S / 6 Mo8,00
X6CrNiMoTi17.12.21.4571316 TiS31635Z 6 CNDT 17.12 8,00
X3CrNiMoTi25.251.4577  Z 5 CNDT 25.25 8,00
X6CrNiMoNb17.12.21.4580316 Cb/NbS31640Z 6 CNDNb 17.12 8,00
X10CrNiMoNb18.121.4583318 Z 6 CNDNb 17.13 8,00
X2CrNiN23.41.4362 S32304Z 3 CN 23.04 AzURANUS 35N / SAF 23.048,00
X2CrNiMoN25.7.41.4410 S32750Z 3 CND 25.06 AzURANUS 47 N (+) SAF 25.078,00
X2CrNiMoN27.5.21.4460329S32900Z 5 CN 27.05 AzSS 448,00
X2CrNiMoN22.5.31.4462(329 LN)/ F51S31803/S32205Z 3 CND 22.05 AzURANUS 45N / SAF 22058,00
X2CrNiMoCuWN25.7.41.4501F55S32760 ZERON 1008,00
X2CrNiMoCuN25.6.31.4507F53S32550/S32520Z 3 CNDU 25.07 AzURANUS 52 N (+)8,00

Comparison of standardized steels

EN-standard Steel no. DIN EN-standard Steel name ASTM/AISI Steel type UNS
1.4112 440BS44004
1.4125 440CS44003
1.4303X5CrNi18 12305S30500

Stainless steel grades

This list is incomplete; you can help by expanding it.
  • 200 Series—austenitic chromium-nickel-manganese alloys
    • Type 201—austenitic that is hardenable through cold working
    • Type 202—austenitic general purpose stainless steel
  • 300 Series—austenitic chromium-nickel alloys
    • Type 301—highly ductile, for formed products. Also hardens rapidly during mechanical working. Good weldability. Better wear resistance and fatigue strength than 304.
    • Type 302—same corrosion resistance as 304, with slightly higher strength due to additional carbon.
    • Type 303—easier machining version of 304 via addition of sulfur and phosphorus. Also referred to as "A1" in accordance with International Organization for Standardization ISO 3506.[5]
    • Type 304—the most common grade; the classic 18/8 stainless steel. Also referred to as "A2" in accordance with International Organization for Standardization ISO 3506.[5]
    • Type 304L—the 304 grade but specially modified for welding.
    • Type 309— better temperature resistance than 304
    • Type 316—the second most common grade (after 304); for food and surgical stainless steel uses; Alloy addition of molybdenum prevents specific forms of corrosion. 316 steel is used in the manufacture and handling of food and pharmaceutical products where it is often required in order to minimize metallic contamination. It is also known as "marine grade" stainless steel due to its increased resistance to chloride corrosion compared to type 304. SS316 is often used for building nuclear reprocessing plants. Most watches that are made of stainless steel are made of Type 316L; Rolex is an exception in that they use Type 904L. Also referred to as "A4" in accordance with International Organization for Standardization ISO 3506.[5]
    • Type 321—similar to 304 but lower risk of weld decay due to addition of titanium. See also 347 with addition of niobium for desensitization during welding.
  • 400 Series—ferritic and martensitic chromium alloys
    • Type 405—a ferritic expecially made for welding applications
    • Type 408—heat-resistant; poor corrosion resistance; 11% chromium, 8% nickel.
    • Type 409—cheapest type; used for automobile exhausts; ferritic (iron/chromium only).
    • Type 410—martensitic (high-strength iron/chromium). Wear resistant, but less corrosion resistant.
    • Type 416— easy to machine due to additional sulfur
    • Type 420—"Cutlery Grade" martensitic; similar to the Brearley's original "rustless steel". Excellent polishability.
    • Type 430—decorative, e.g., for automotive trim; ferritic. Good formability, but with reduced temperature and corrosion resistance.
    • Type 440—a higher grade of cutlery steel, with more carbon in it, which allows for much better edge retention when the steel is heat treated properly. It can be hardened to around Rockwell 58 hardness, making it one of the hardest stainless steels. Due to its toughness and relatively low cost, most display-only and replica swords or knives are made of 440 stainless. Also known as "razor blade steel". Available in four grades 440A, 440B, 440C, and the uncommon 440F (free machinable). 440A, having the least amount of carbon in it, is the most stain-resistant; 440C, having the most, is the strongest and is usually considered a more desirable choice in knifemaking than 440A except for diving or other salt-water applications.
    • Type 446—For elevated temperature service
  • 500 Series—heat resisting chromium alloys
  • 600 Series—martensitic precipitation hardening alloys
    • Type 630—most common PH stainless, better known as 17-4; 17% chromium, 4% nickel

Stainless steel finishes

  Standard mill finishes can be applied to flat rolled stainless steel directly by the rollers and by mechanical abrasives. Steel is first rolled to size and thickness and then annealed to change the properties of the final material. Any oxidation that forms on the surface (scale) is removed by pickling, and the passivation layer is created on the surface. A final finish can then be applied to achieve the desired aesthetic appearance.

  • No. 0 - Hot Rolled Annealed, thicker plates
  • No. 1 - Hot rolled, annealed and passivated
  • No, 2D - cold rolled, annealed, pickled and passivated
  • No, 2B - same as above with additional pass through polished rollers
  • No, 2BA - Bright Anealed (BA) same as above with highly polished rollers
  • No. 3 - coarse abrasive finish applied mechanically
  • No. 4 - brushed finish
  • No. 6 - matte finish
  • No. 7 - reflective finish
  • No. 8 - mirror finish
  • No. _ - bead blast finish



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ASTM A588 Grade-A CORTEN-B High Strength Round Bars
14NiCrMo13-4 DIN 1.6657 832M13 Round Bars
SAE 4130 Quenched & Tempered Hollow Tubes & Bars
SAE 4130 Q&T Seamless Mechanical Tube & Pipe
ST-52 / ST 52-3N DIN 17100 Normalized Round Bars
ASTM A537 / ASME SA537 CL.2 Q&T Pressure Vessel Plates
AISI 4130 Q&T 75K API 6A Forged Round Bars
IS 2062 E450 D/E450 E SAILMA 450 SAILMA 450HI Plates
EN30B DIN 1.6747 4S28 835M30 AFNOR 30NCD16 Round Bars
S355J2W / S355J2W+N EN 10025-5 DIN 1.8963 EN 10155 Plates
S355JOW / S355JOW+N EN 10025-5 DIN 1.8963 EN 10155 Plates
S355JOWP / S355JOWP+N EN 10025-5 DIN 1.8946 EN 10155 Plates
SA516 Grade 60/70 HIC Tested Plates NACE TM0284-2003 / NACE MR0175 / ISO 15156-2
API 5L X60 / X65 / X70 PSL2 Plates

Nickel - Monel® - Inconel® - Incoloy® - Hastelloy® - Alloy 20 - Duplex
Trademark Notice - Some names are trade names and/or trademarks of specific manufacturers. Ashtapad Overseas, Mumbai, India is not affiliated with any manufacturer(s). Orders will be filled to meet specifications from any available source(s). Names are listed solely for reference to help identify products consistent with listed specifications.