NIKO STEEL INDUSTRIES

Home

About Us

Technical Info

Quality Policy

Enquiry Form

TECHNICAL INFO :

Standards & Designations

ASTM - American Society for Testing Materials
ASTM A20- General Requirements for Delivery ASTM A53- Welded and Seamless ASTM A105- Forged or Rolled Steel Pipe Flanges, High Temperature Service.
ASTM A106- Seamless Carbon ASTM A107- Hot Rolled Carbon ASTM A129- Open Hearth Iron ASTM A155- Electric Fusion Welded steel Pipe ASTM A167- Specification for Corrosion ASTM A179- Seamless Cold ASTM A181- Forged or Rolled Steel Pipe ASTM A182- Forged or Rolled High Temperature Service.
ASTM A201- Carbon Silicon Steel Plates of and other Pressure Vessels.
ASTM A203- Nickel Steel Plates for Boilers ASTM A204- Molybdenum Steel Plates for ASTM A212- High Tensile Strength Carbon ASTM A234- Factory made ASTM A240- Corrosion Resisting Chromium and Welded Unfired Pressure Vessels.
ASTM A249- Welded Austenitic Steel Boiler, ASTM A268- Seamless and Welded Ferritic and ASTM A269- Seamless and ASTM A270- Seamless and Welded Austenitic ASTM A271- Seamless Austenitic ASTM A276- Hot Rolled and ASTM A285- Low and Intermediate ASTM A300- Steel Plates for ASTM A312- Seamless and ASTM A333- Seamless and Welded Steel Pipe for ASTM A335- Seamless Ferritic Alloy Steel Pipe of Rolled Steel plates of Flange and Firebox Qualities.
Steel Pipe.
Forged Fittings and Valves and parts for
Steel Pipe for High Temperature Service.
Steel Bars.
Plates of Flange Quality.
for High Temperature.
Resisting Chromium-Nickel Steel Plate, Sheet or Strip.
Drawn Low Carbon Steel, Heat Exchanger and Condenser Tubes.
Flanges, Forged Fittings and Valves and Parts for General Services.
Alloy Steel Pipe Flanges, Forged Fittings and Valves and Parts for
Intermediate Tensile Ranges for Fusion Welded Boilers
and other Pressure Vessels.
Boilers and other Pressure Vessels.
Silicon Steel Plates for Boilers and other Pressure Vessels.
Wrought Carbon Steel and Ferritic Alloy Steel Welding Fittings.
Chromium-Nickel Steel Plate Sheet and Strip for Fusion
Superheater, Heat Exchanger and Condenser Tubes.
Martensitic Stainless Steel Tubing for General Service.
Welded Austenitic Stainless Steel for General Service
Stainless Steel Sanitary Tubing
Chromium-Nickel Steel Still Tubes for Refinery Service.
Cold Finished Corrosion Resisting Steel Bars.
Tensile Strength Plates of Flange and Firebox Qualities.
Pressure Vessels for Service at Low Temperatures.
Welded Austenitic Stainless Steel Pipe
Low Temperature Service.
for High Temperature Service.

ASTM A350- Forged or Rolled Carbon and Alloy Steel Flanged, Forged Fittings and Valves and Parts
for Low Temperature Service.
ASTM A357- 5% Chromium, 0.5% Molybdenum Steel Plates for Boilers and other Pressure Vessels.
ASTM A358- Electric Fusion Welded Austenitic Chromium-Nickel Alloy Steel Pipe for High Temperature Service.
ASTM A376- Seamless Austenitic Steel Pipe for High Temperature Central Station Service.
ASTM A387- Chromium-Molybdenum Steel Plates for Boilers and other Pressure Vessels.
ASTM A403- Factory made Wrought Austenitic Steel Welding Fittings.
ASTM A404- Forged or Rolled Alloy Steel, Pipe Flanges, Flanges Fittings and Valves and Parts.
ASTM A405- Seamless Ferritic Alloy Steel Pipe Specially Heat Treated for High Temperature Service.
ASTM A409- Welded Large Diameter Austenitic Steel Pipe for Corrosive or High Temperature Service.
ASTM A420- Factory made Wrought Carbon Steel and Alloy Steel Welding Fittings of Seamless or Welded
Construction for Low Temperature Service.
ASTM A450- General Requirements for Carbon, Ferritic Alloy, and Austenitic Alloy Steel Tubes.
ASTM A465- Leaded Carbon Steel Forged Pipe Flanges and Parts for Pressure and General Service.
ASTM A511- Seamless Stainless Steel Mechanical Tubing.
ASTM A515- Carbon Steel Plates of Intermediate Tensile Strength for Intermediate and Higher Temperature Service.
ASTM A530- General Requirements for Specialized Carbon and Alloy Steel Pipe.
ASTM A554- Specification for Welded Stainless Steel Mechanical Tubing.
ASTM A632- Specification for Seamless and Welded Austenitic Stainless Steel Tubing (Small Diameter)
for General Service.
ASTM A688- Welded Austenitic Stainless Steel Feed water Heater Tubes.
ASTM A778- Welded, Unannealed Austenitic Stainless Steel Tubular Products.
ASTM A789- Seamless and Welded Ferritic - Austenitic Stainless Steel Tubing for General Service.
ASTM A790- Seamless and Welded Ferritic - Austenitic Steel Pipe.
ASTM B161- Nickel Seamless Pipe and Tube.
ASTM B163- Seamless Nickel and Nickel Alloys Condenser and Heat Exchanger Tubes.
ASTM B165- Nickel Copper Alloy (UNS N04400) Seamless Pipe and Tube.
ASTM B167- Nickel-Chromium-Iron Alloy (UNS N06600 and N06690) Seamless Pipe and Tube.
ASTM B210- Aluminium Alloy Tubes.
ASTM B235- Aluminium Alloy Extruded Tubes.
ASTM B337- Seamless and Welded Titanium and Titanium Alloy Pipe.
ASTM B338- Seamless and Welded Titanium and Titanium Alloy Tubes for Condensers and Exchangers.

ASTM B361- Factory Made Wrought Aluminium And Aluminium Alloy Welding Fittings.
ASTM B407- Nickel-Iron-Chromium Alloy Seamless Pipe and Tube.
ASTM B423- Nickel-Iron-Chromium-Molybdenum-Copper Alloys (UNS N08825 and N08221) Seamless Pipe and Tube.
ASTM B523- Seamless and Welded Zirconium and Zirconium Alloy Tubes for Condensers and Heat Exchangers
ASTM B668- UNS N08028 Seamless Tubes.
ASTM B677- UNS N08904 and N08925 Seamless Pipe and Tube.

ASME- American Society of Mechanical Engineers

ASME Sect. I- Power Boilers.
ASME Sect. II- Material Specifications.
ASME Sect. III- General Requirements
ASME Sect. VIII- Pressure Vessels.
ASME Sect. IX- Welding and Brazing Qualifications.

ANSI- American National Standard Institute

ANSI B10.1- Standard for Pipe Threads.
ANSI B16.5- Steel Pipe Flanges and Flanged Fittings.
ANSI B16.9- Wrought Steel butt Welding Fittings.
ANSI B16.11- Forged Steel Fittings, Socket Welding and Threaded.
ANSI B16.25- Butt Welding Ends for Pipe, Valves, Flanges and Fittings.
ANSI B16.28- Wrought Steel Butt Welding Short Radius Elbows and Returns.
ANSI B31.1- Code for Pressure Piping.
ANSI B31.3- Code for Pressure Piping Petroleum Refinery Piping.
ANSI B31.8- Gas Transmission and Distribution Piping Systems.
ANSI B36.10- Standard for Wrought Steel and Wrought Iron Pipe.
ANSI B36.19- Standard for Stainless Steel Pipe.

MSS- Manufactures Standardization Society of the Valves and Fittings

MSS SP.6- Standard Finishes for Contact Faces of Pipe Flanges.
MSS SP.25- Standard Marking System for Valves, Fittings, Flanges and Unions.
MSS SP.43- Wrought Stainless Steel Butt Welding Fittings.
MSS SP.48- Steel Butt Welding Fittings (26" and larger).
MSS SP.59- Steel Butt Welding Short Radius Elbows and Returns.

API- American Petroleum Institute

API STD 5A- API Specification for Casing, Tubing and Drill Pipe.
API STD 5L- API Specification for Line Pipe.
API STD 5LX- API Specification for High Test Line Pipe.

BS- British Standard Institute
BS 10- Flanges and Bolts for Pipes, Valves and Fittings.
BS 21- Pipe Threads for Tubes and Fittings where Pressure High Joints are made on Threads.
BS 806- Ferrous Pipes and Piping Installations for Connection with Lead Boilers.
BS 970 Pt.1- Stainless Heat Resisting Steels in the Form of Blooms, Billets, Bars and Forgings.
BS 1449 Pt.2- Stainless and Heat Resisting Steel Plate, Sheet and Strip.
BS 1500- Fusion Welded Pressure Vessels for use in the Chemical Petroleum and Allied Industries.
BS 1501-1506- Steels for Use in the Chemical Petroleum and Allied Industries.
BS 1502- Steels for Fired and Unfired Pressure Vessels Sections and Bars.
BS 1503- Steel Forgings for Pressure Purposes.
BS 1510- Low Temperature Supplementary Requirements to BS 1501-1506.
BS 1560- Steel Pipe Flanges and Flanged Fittings for the Petroleum Industry
BS 1600- Dimension of Steel Pipe for the Petroleum Industry.
BS 1640- Steel Butt Welding Pipe Fittings for the Petroleum Industry.
BS 1640 PT.1- Wrought and Cast Austenitic Chromium-Nickel Steel Fitting.
BS 1640 Pt.2- Wrought and Cast Austenitic Chromium-Nickel Steel Fittings.
BS 1740- Wrought Steel Pipe Fitting Screwed BSP Thread.
BS 1965 Pt.1- Carbon Steel Butt Welding Pipe Fitting for Pressure Purposes.
BS 1965 Pt.2- Austenitic Stainless Steel Butt Welding Pipe Fitting for Pressure Purposes.
BS 2041- Tubular Heat Exchanges for Use in the Petroleum Industry.
BS 3014- As welded and Cold Drawn Welded Austenitic Stainless Steel Tubes for Mechanical Structural and General Engineering Purposes.
BS 3059- Steel Boiler and Superheater Tubes.
BS 3274- Tubular Heat Exchangers for General Purposes
BS3293- Carbon Steel Pipe Flanges over 24" for the Petroleum Industry.
BS 3351- Piping Systems for the Petroleum Industry.

ASTM STANDARDS USED FOR PIPING

ASTM	GRADE	Chemical requirements percent (%)										Mechanical requirements
ASTM	GRADE	C max.	Mn. max.	P max.	S max.	Si max.	Ni	Cr	Mo	Cu	Others	Tensile strength mini-Mpa/Psi	Yeild strength mini-Mpa/Psi	Elong mini %	Impact test at C-- F
A 53	Types A B	0.25 0.30	0.95 1.20	0.05 0.05	0.06 0.06	-----	0.40 max 0.40 max	0.40 max 0.40 max	0.15 max 0.15 max	0.40 max 0.40 max	0.08 max 0.08 max	330-48000 415-60000	205-30000 240-35000	36 29.5	-----
A 106	A B C	0.25 0.30 0.35	0.27-0.93 0.29-1.06 0.29-1.06	0.035 0.035 0.035	0.025 0.025 0.025	0.10 mini 0.10 mini 0.10 mini	0.40 max 0.40 max 0.40 max	0.40 max 0.40 max 0.40 max	0.15 max 0.15 max 0.15 max	0.40 max 0.40 max 0.40 max	0.08 max 0.08 max 0.08 max	330-48000 415-60000 485-70000	205-30000 240-35000 275-40000	L35-T25 L30-T16.5 L30-T16.5	--
A 312	TP 304 TP 304L TP 310S TP 316 TP 316L TP317 L TP 321 TP 347	0.08 0.035 0.08 0.08 0.035 0.035 0.08 0.08	2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00	0.040 0.040 0.040 0.040 0.040 0.040 0.040 0.040	0.030 0.030 0.030 0.030 0.030 0.030 0.030" 0.030	0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75	8.00-11.0 8.00-13.0 19.0-22.0 11.0-14.0 10.0-15.0 11.0-15.0 9.00-13.0 9.00-13.0	18.0-20.0 18.0-20.0 24.0-26.0 16.0-18.0 16.0-18.0 18.0-20.0 17.0-20.0 17.0-20.0	0.75 max. 2.00-3.00 2.00-3.00 3.00-4.00	-	5C<Ti0.70% 10C<Cb+ Ta<1.00%	515-75000 485-70000 515-75000 515-75000 485-70000 515-75000 515-75000 515-75000	205-30000 170-25000 205-30000 205-30000 170-25000 205-30000 205-30000 205-30000	L35- T25 L35- T25 L35- T25 L35- T25 L35- T25 L35- T25 L35- T25 L35- T25	-
A 333	3 4 6 7 8 9	0.19 0.12 0.30 0.19 0.13 0.20	0.31-0.64 0.50-1.05 0.29-1.06 0.90 0.90 0.40-1.06	0.25 0.25 0.25 0.25 0.25 0.25	0.25 0.25 0.25 0.25 0.25 0.25	0.18-0.37 0.18-0.37 0.10 mini 0.13-0.32 0.13-0.32 p	3.18-3.82 0.47-0.98 2.03-2.57 8.40-9.60 1.60-2.24	0.44.1.01	-	0.40-0.75 0.75-1.25	Ai:0.40-0.30%	450-65000 415-60000 415-60000 450-65000 690-100000 435-63000	240-35000 240-35000 240-35000 240-35000 515-75000 315-46000	L30-T20 L30-T20 L30-T16.5 L30-T16.5 L30-T22 L22 L28	-100 oooo-150 -100 oooo-150 -45 kkkkk-50 -75 pppppp-100 -195 ccccccc-320 -75 kkkkkk-100
A 335	P1 P2 P5 P9 P11 P12 P15 P21 P22 P91	0.10-0.20 0.10-0.20 0.15 0.15 0.15 0.15 0.05-0.15 0.15 0.15 0.08-0.12	0.30-0.80 0.30-0.61 0.30-0.60 0.30-0.60 0.30-0.60 0.30-0.61 0.30-0.60 0.30-0.60 0.30-0.60 0.30-0.60	0.025 0.025 0.025 0.025 0.025 0.025 0.025 0.025 0.025	0.025 0.025 0.025 0.025 0.025 0.025 0.025 0.025 0.010	0.10-0.05 0.10-0.30 0.50 0.25-1.00 0.50-1.00 0.50 1.15-1.65 0.50 0.50 0.20-0.50	0.40 max.	0.50-0.81 4.00-6.00 8.00-10.0 1.00-1.50 0.80-1.25 2.65-3.35 1.90-2.60 8.00-9.50	0.44-0.65 0.44-0.65 0.45-0.65 0.90-1.10 0.44-0.65 0.44-0.65 0.44-0.65 0.80-1.06 0.87-1.13 0.85-1.05		0.18-0.25	380-55000 380-55000 415-60000 415-60000 415-60000 415-60000 415-60000 415-60000 415-60000 585-85000	205-30000 205-30000 205-30000 205-30000 205-30000 205-30000 205-30000 205-30000 205-30000 415-65000	L30-T20 L30-T20 L30-T20 L30-T20 L30-T20 L30-T20 L30-T20 L30-T20 L30-T20 L30-T20	-
A 358	TP 304 TP 310S TP 316 TP 316LTP 317L TP 321 TP 347	0.08 0.08 0.08 0.30 0.035 0.08 0.08	2.00 2.00 2.00 2.00 2.00 2.00 2.00	0.045 0.045 0.045 0.045 0.045 0.045 0.045	0.030 0.030 0.030 0.030 0.030 0.030 0.030	0.75 0.75 0.75 0.75 0.75 0.75 0.75	8.0-10.650 19.0-22.0 10.0-14.0 10.4-14.0 11.0-15.0 9.0-12.0 9.0-13.0	18.0-20.0 24.0-26.0 16.0-18.00 18.00-20.- 17,0-19.0 17.9-19.1	2.0-3.0 2.0-3.0 3.0-4 0	No 10 max. Cb+T^A10x C 190	-	-	-	-	-