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STANDARD
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GRADE RELEVANT STANDARD HBMCBar 200 ISO 200 EN-GJL-200C ASTM A48 CLASS 30 HBMCBar 250 ISO 250 EN-GJL-250C ASTM A48 CLASS 35 HBMCBar 300 ISO 300 EN-GJL-300C ASTM A48 CLASS 45 HBMCBar 400-15 ISO 400-15 EN-GJS-400-15C HBMCBar 450-12 ISO 450-12 EN-GJS-450-12C ASTM A536 CLASS 65-45-12 HBMCBar 500-7 ISO 500-7 EN-GJS-500-7C ASTM A536 CLASS 80-55-06 HBMCBar 600-3 ISO 600-3 EN-GJS-600-3C ASTM A536 CLASS 80-60-03
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BASE SIZES
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TOLERANCE ALLOWANCE DEFLECTION
Shape Dimension(mm) Grey Iron Bar Ductile Iron Bar Dimension Tolerance (mm) S.M.A. (mm) Deflection (mm) Dimension Tolerance (mm) S.M.A. (mm) Deflection (mm) Round φ30--φ50(grey iron) φ40--φ50(ductile iron) 0～+1.5 ≤1.5 ＜3 0～+2.0 ≤1.5 ＜5 φ55--φ100 0～+2.0 ≤2.0 ＜2 0～+2.5 ≤2.0 ＜4 φ105--φ150 0～+3.0 ≤3.0 ＜2 0～+3.0 ≤3.0 ＜3 φ155--φ210 0～+4.0 ≤4.0 ＜2 0～+4.0 ≤4.0 ＜3 φ215--φ300 0～+5.0 ≤5.0 ＜2 0～+5.0 ≤5.0 ＜3 φ310--φ400 0～+6.0 ≤6.0 ＜2 0～+6.0 ≤6.0 ＜4 Square & Rectangular □40--□50 0～+2.0 ≤2.0 ＜4 0～+2.5 ≤2.5 ＜5 □55--□100 0～+3.0 ≤3.0 ＜3 0～+3.0 ≤3.5 ＜4 □105--□150 0～+4.0 ≤4.0 ＜3 -1.0～+4.0 ≤4.5 ＜3 □155--□200 -1.0～+5.0 ≤5.0 ＜3 -2.0～+5.0 ≤5.0 ＜3
Note: 1. "S. M. A." means " Surface Machining Allowance". That is the allowance of removing the surface irregular part.
2. Before ordering, please consider S.M.A. That can be understood as" Removing Defect Deep". Especially for Square and Rectangular iron bars, if final products are right angles, please consider Chamfer angle extra. It is not included in the S.M.A.
Welcome to give us final product's dimension for comments. -
GREY IRON AND DUCTILE IRON MARK
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Grey Iron Mark GRADE HBMCBar 200 HBMCBar 250 HBMCBar 300 GRADE MARK 
SECTION COLOUR ORANGE BLUE WHITE SPC.COLOUR WHITE WHITE BLUE Ductile Iron Mark GRADE HBMCBar 400-15 HBMCBar 450-10/12 HBMCBar 400-18 GRADE MARK 
SECTION COLOUR YELLOW GREEN PURPLE SPC.COLOUR BLUE WHITE WHITE GRADE HBMCBar 500-7 HBMCBar 600-3 GRADE MARK 
SECTION VOLOR RED PINK SPC.COLOUR WHITE WHITE
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SOLID BAR
| Grey Iron |
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| Ductile Iron |
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PIPE
| Outer dia. 310mm Inner dia. 65mm Wall thickness: 20-50mm |
SPECIAL SHAPE
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