Gourav Mittal
Gourav Mittal

Standards

Get Know about standards of our products here. You will know the complete information Tirupati Steel products.

ASTM Specification For Stainless Steel Tubes / Pipes

 

SpecificationAllowable Outside Diameters Variations in mmAllowable wall thickness variations in %Exact Length tolerances in mmTests
ASTM A-213
Seamless Boiler, Super heater, and Heat Exchanger tubes
DiametersOverUnder
upto 25.40.100.10
25.4 to 38.1 incl.0.150.15
38.1 to 50.8 excl.0.200.20
50.8 to 63.5 excl.0.250.25
63.5 to 76.2 excl.0.300.30
76.2 to 101.6 incl.0.380.38
OverUnder
+20-0
+20-0
+22-0
+22-0
+22-0
+22-0
OverUnder
3.170
3.170
3.170
3.760
4.760
4.760
Tension Test
Flattening Test
Flare Test
Hardness Test
100% Hydrostatic Test

Refer to ASTM A-450

ASTM A-249
Welded Boiler
Super heater
Heat Exchanger
and
Condenser Tubes
upto 25.40.100.10
25.4 to 38.1 incl.0.150.15
38.1 to 50.8 excl.0.200.20
50.8 to 63.5 excl.0.250.25
63.5 to 76.2 excl.0.300.30
76.2 to 101.6 incl.0.380.38
+10-10
+10-10
+10-10
+10-10
+10-10
+10-10
Minimum Wall
+ 18%- 0 available
on request.
3.170
3.170
3.170
4.760
4.760
4.760
Tension Test
Flattening Test
Flange Test
Reverse Bend Test
Hardness Test
100% Hydrostatic Test
Reverse Flattening Test

Refer to ASTM A-450
When ever Applicable

ASTM A-269
Seamless & Welded Tubes

General Services
upto 12.70.130.13
12.7 to 38.1 excl.0.130.13
38.1 to 88.9 excl.0.250.25
88.9 to 139.7 excl.0.380.38
+15-15
+10-10
+10-10
+10-10
3.20
3.20
4.80
4.80
Flare Test
(Seamless Only)
Flange Test
(Welded Only)
Reverse Flattening Test
(Welded Only)
Hardness Test
100% Hydrostatic Test
ASTM A-270
Seamless and Welded

Austenitic Stainless

Steel Sanitary Tubing
25.40.050.20
38.10.050.20
50.80.050.28
63.50.050.28
76.20.080.30
101.60.080.38
+12.5-12.5
+12.5-12.5
+12.5-12.5
+12.5-12.5
+12.5-12.5
+12.5-12.5
3.20
3.20
3.20
3.20
3.20
3.20

Reverse Flattening test
100% Hydrostatic Test
External Polish on all
tubes

Refer to ASTM A-270
ASTM A-312
Seamless & Welded pipes
13.7 to 48.3 incl.0.400.79
48.3 to 114.3 incl.0.790.79
114.3 to 220 incl.1.600.79

Minimum Wall
12.5% under normal Wall Specified.
6.40
6.40
6.40
(Normally Random Lengths Ordered)
Tension Test

Flattening Test

100% Hydrostatic Test

Refer to ASTM A-530

 

Equivalent table For Various Specifications

 

USA
AISI NO

GERMANY
DIN		INDIA
IS		BRITAIN BSJAPAN
JIS		SWEDEN SISFRANCE AFNORITALY
UNI		CHINA
GB		UNS DESIGNATION
3041.4301X04Cr19Ni9304S15SUS30414 23 23Z6CN18.09X5CrNi18 100Cr19Ni9S30400
304 L1.4306X02Cr19Ni10304S11SUS304L14 23 52Z2CN18.10X2CrNi18 1100Cr19Ni11S30403
3101.4845X20Cr25Ni20310S24SUS310S14 23 61Z12CN25.20X22CrNi25 200Cr25Ni20S31008
3161.4401X04Cr17Ni12Mo2316S31SUS31614 23 47Z6CND17.11X8CrNiMo 17130Cr17Ni12Mo2S31600
316 L1.4404X02Cr17Ni12Mo2316S11SUS316L14 23 48Z2CND17.12X2CrNiMo 171200Cr17Ni14Mo2S31603
3211.4541X04Cr18Ni10Ti316S31SUS32114 23 37Z6CNT18.12X6CrNiTi 18 11OCr18Ni9TiS32100