| 
 Nickel  | 
 Chromium  | 
 Iron  | 
 Molybdenum  | 
 Carbon  | 
 Manganese  | 
 Silicon  | 
 Sulfur  | 
 Aluminum  | 
 Titanium  | 
 Copper  | 
| 
 %  | 
 %  | 
 %  | 
 %  | 
 %  | 
 %  | 
 %  | 
 %  | 
 %  | 
 %  | 
 %  | 
| 
 
  | 
 
  | 
 min.  | 
 
  | 
 max.  | 
 max.  | 
 max.  | 
 max.  | 
 max.  | 
 
  | 
 
  | 
| 
 38.0-46.0  | 
 19.5-23.5  | 
 22.0  | 
 2.5-3.5  | 
 0.05  | 
 1.0  | 
 0.5  | 
 0.03  | 
 0.2  | 
 0.6-1.2  | 
 1.5-3.0  | 
Norm Equivalence
| 
 Grade  | 
 UNS No  | 
 Euro norm  | 
|
| 
 No  | 
 Name  | 
||
| Alloy | ASTM/ASME | EN10216-5 | EN10216-5 | 
| 825 | N08825 | 2.4858 | NiCr21Mo | 
				
				
ASTM B704 / ASME SB704, Incoloy 825, UNS N08825
ASTM B751 / ASME SB751
| Size OD | Tolerance OD | Tolerance WT | 
| 1/8’’≤OD<5/8’’ (3.18≤OD<15.88 mm) | ±0.004’’ (±0.10 mm) | ±12.5% | 
| 5/8≤OD≤1’’ (15.88≤OD≤25.4 mm) | ±0.0075’’ (±0.19 mm) | ±12.5% | 
Meilong Standard
| Size OD | Tolerance OD | Tolerance WT | 
| 1/8’’≤OD<5/8’’ (3.18≤OD<15.88 mm) | ±0.004’’ (±0.10 mm) | ±10% | 
| 5/8≤OD≤1’’ (15.88≤OD≤24 mm) | ±0.004’’ (±0.10 mm) | ±8% | 
ASTM B423 / ASME SB423, Incoloy 825, UNS N08825
| Size OD | Tolerance OD | Tolerance WT | 
| 1/8’’≤OD<3/16’’ (3.18≤OD<4.76 mm) | +0.003’’ (+0.08 mm) / -0 | ±10% | 
| 3/16≤OD<1/2’’ (4.76≤OD<12.7 mm) | +0.004’’ (+0.10 mm) / -0 | ±10% | 
| 1/2’’≤OD≤1’’ (12.7≤OD≤25.4 mm) | +0.005’’ (+0.13 mm) / -0 | ±10% | 
Meilong Standard
| Size OD | Tolerance OD | Tolerance WT | 
| 1/8’’ ≤OD<3/16’’ (3.18≤OD<4.76 mm) | +0.003’’ (+0.08 mm) / -0 | ±10% | 
| 3/16≤OD<1/2’’ (4.76≤OD<12.7 mm) | +0.004’’ (+0.10 mm) / -0 | ±10% | 
| 1/2’’≤OD≤1’’ (12.7≤OD≤25.4 mm) | +0.004’’ (+0.10 mm) / -0 | ±8% | 
| Alloy | 
 O.D.  | 
 W.T.  | 
 Yield Strength  | 
 Tensile Strength  | 
 Elongation  | 
 Hardness  | 
 Working Pressure  | 
 Burst Pressure  | 
 Collapse Pressure  | 
| 
 inch  | 
 inch  | 
 MPa  | 
 MPa  | 
 %  | 
 HV  | 
 psi  | 
 psi  | 
 psi  | 
|
| 
 
  | 
 
  | 
 min.  | 
 min.  | 
 min.  | 
 max.  | 
 min.  | 
 min.  | 
 min.  | 
|
| Incoloy 825 | 
 0.250  | 
 0.035  | 
 241  | 
 586  | 
 30  | 
 209  | 
 7,627  | 
 29,691  | 
 9,270  | 
| Incoloy 825 | 
 0.250  | 
 0.049  | 
 241  | 
 586  | 
 30  | 
 209  | 
 11,019  | 
 42,853  | 
 12,077  | 
| Incoloy 825 | 
 0.250  | 
 0.065  | 
 241  | 
 586  | 
 30  | 
 209  | 
 15,017  | 
 58,440  | 
 14,790  |