Specification

Sno.
APPLICATION
GRADE
CHEMICAL COMPOSITION(%AGE)
MECH. PROPERTIES(MIN)
WELD TEST
DIMENSIONAL TOELRANCES(MM)
 
INDIAN
STANDARD
EQUIVALENT
INTERNATIONAL
STANDARDS
   C Mn S P
UTS
kgf/mm2
YS
kgf/mm2
%ELG
S.650Ao
Flaring
Min.
Flatening
Min.
Bending
 
Condition
 
 00
 		 t
 
        Max Except where range is given                    
1 STEEL TUBE FOR BICYCLE AND ALLIED PURPOSES                              
  IS:2039/1991 BS:1717 ERWC1 0.15 0.60 0.06 0.06 30.60 20.40 10.00 12.00% 3t   UPTO 30.00 OD   +0.03
+0.13		  
      ERWC2 0.20 0.90 0.05 0.05 40.80 30.60 8.00 10.00% 5t   30.00,44.50   +0.06
-0.14		  
      ERWC3 0.25 1.20 0.05 0.05 43.90 35.70 8.00 8.00% 8t          
2 STEEL TUBES FOR AUTOMOTIVE
APPLICATIONS		                              
  IS:3074/2005 BS:6323 ERW1 0.12 0.60 0.04 0.04 32.00 17.00 20.00 12.50% 2t   OVER UPTO & INCL    
    DIN:2393                         25.00 +/-0.10  
    DIN:2394                       25.00 51.00 +/-0.13  
    JIS G 3445 ERW2 0.25 1.20 0.04 0.04 39.00 25.00 15.00 10.00% 3t   51.00 63.00 +/-0.18 +/-8%
    ASTM:A-513                       63.00 76.00 +/-0.20  
      ERW3 0.35 1.30 0.04 0.04 44.00 28.00 10.00 8.00% 5t   76.00 88.00 +/-0.25  
                            88.00   +/-0.30  
3 STEEL TUBES FOR MECHANICAL & GENERAL ENGINEERING PURPOSES Wt160     0.06 0.06 31.62 16.32 970/TS 12.50% 3t   OVER UPTO & INCL    
                          25.40 +/-0.15  
  IS:3061/2006 BS:6323 Wt210     0.06 0.06 33.66 20.40 970/TS 12.50% 4t   25.40 51.00 +/-0.18  
    JIS G 3445                       51.00 63.50 +/-0.23  
    DIN:2393 Wt240     0.06 0.06 41.82 24.48 970/TS 10.00% 6t   63.50 76.10 +/-0.25 +/-10%
    DIN:2394                       76.10 88.90 +/-0.31  
      Wt310     0.06 0.06 45.90 31.62 970/TS       88.90 101.10 +/-0.36  
                            101.10 114.30 +/-0.43  
                            114.30 152.40 +/-0.58  
4 FURNITURE TUBES                       OVER UPTO &INCL   +not
  IS:7138         0.06 0.06 32.62 21.42 20.00 7.50 5t 180 °/6D   21.30 +/-0.20 limited
                            21.30   +/-0.30 -8%
5 SECTIONAL TUBES                              
  IS:4923/1997 JIS G 3466 YST210     0.06 0.06 34.00 21.00 12 to 20              
    ASTMA 500 GR A                              
      YST240     0.06 0.06 42.00 24.00 10 to 15       DIMENSIONS OF SIDES   +/-1% WITH A MIN OF +/-0.50mm +/-10%
      YST310     0.06 0.06 45.00 32.00 8 to 10            
6 STRUCTURAL TUBES YST210     0.06 0.06 34.00 21.00 970/TS   5t OR 2/3 ID 180 °/6D OVER UPTO &INCL +/-0.40 +not
  IS:1161/1998 BS:4360 YST240     0.06 0.06 42.00 24.00 970/TS   6t OR 2/3 ID 180 °/6D   48.30OD 0.80 limited
    ASTMA 500 GR A YST310     0.06 0.06 55.00 32.00 970/TS   8t OR 2/3 ID 180 °/6D   48.30OD +/-1% -10%
7 PROPELLER SHAFT TUBES
CUSTOMER SPECIFICATIONS		                       AS PER IS:3074
OR MUTUALLY AGREED TOLERANCE		      
  STKM 13B 0.25 0.30
0.90		 0.04 0.04 45.00 31.00 20.00   3/4 D 90 °/6D      
      SAE1020 0.23 0.30
0.60		 0.035 0.035 44.00 31.00 15.00            
8 HIGH STRENGTH TUBES
CUSTOMER SPECIFICATIONS		 EN-8 0.35
0.45		 0.60
1.00		 0.05 0.06 55.00 32.00         AS PER IS:3074
OR MUTUALLY AGREED TOLERANCE