- SAW,ERW Pipes/Tubes
- Hot Finished Steel Bars
- Cold Finished Steel Bars
- Profile, Shaped
- Q.T.Bars
- Angles,Channels,H-Beams
- Railway Rails
Specifications
Carbon Steel for Machine Structural Use
AISI 1010, 1015, 1018, 1020 1022 1025 1045 1050
JIS G 4051 S10C, S15C, S20C,S22C, S25C, S45C,S50C
BS 970 Part 1/3, 040A10, 070M20/C22, C25, C45, C50
Australia/N.Z. AS3679 250/300
Chromium Molybdenum Steels
AISI 4131, 4135, 4140,ASTM A 193 B7(*)
JIS G 4105 SCM 415, SCM435, SCM440
BS 708M20, 34CrMo4, 708M40
Spring Steels
AISI 9260/5155/6150/9254
JIS G 4801 SUP7/9/10/12, BS 735A51, 685A57, DIN 55Cr3, 50CrV4, 54SiCr6
Characteristics
Hot Rolled ( Forged ) Steel Round Bar
Smooth Turned Round Bar
Dimensions
| Dia.(mm) | Length(M) | Dia Tolerance | Straightness | Shape |
|---|---|---|---|---|
| 12-530 | 3.0-8.0 | 1.5% of dia. | 3/1,000 | Round, Hexagon, |
| Square & Flat |
Tolerances of Hot Rolled Round Bar and Square Bar
| Item | Dimensional Tolerance | |
|---|---|---|
| Tolerances on diameter or width across flats | ±1.5% with the minimum value of 0.4mm | |
| Deviation of diameteror deviation | Not exceeding 70% of range of tolerance on diameter or width across flats | |
| Tolerances on length | For length not exceeding 7m | +40mm -0mm |
| For length exceeding7m | Add 5mm to plus side tolerance for every increase of 1m or its fraction | |
| Radius on corners(R) | 10 to 20% of width across flats, as a rule | |
| Twist | To be practically straight | |
| Bend | Not exceeding 3mm for every 1m and not exceeding 3mm X length(m)/1m for total length | |