Yosun (Tianjin) Piping Engineering Co., Ltd. is one of the most credible manufacturers and suppliers of gray iron casings for pipe fitting in China. Please feel free to wholesale customized gray iron casings for pipe fitting at competitive price from our factory. If you have any enquiry about quotation, please feel free to email us.
Metric Equivalents
| in. | 1/8 | 1/4 | 1/2 | 3/4 | 7/8 | 1 1/8 | 1.2 | 1 9/32 | 1 1/2 | 1 3/4 | 2 3/4 | 13 |
| mm | 3.2 | 6.4 | 12.7 | 19.0 | 22.2 | 28.6 | 30.5 | 32.5 | 38.1 | 44.4 | 69.8 | 1330 |

Metric Equivalents
| in. | mm | in. | mm |
| 1 1/8 | 28.6 | 3 3/4 | 95.2 |
| 1 3/4 | 44.4 | 5 5/8 | 142.9 |
| 1 7/8 | 47.6 | 7 1/2 | 290.5 |

Tensile Requirements
| Class A | Class B | Class C | |
| Tensile strength,min,ksi(MPa) | 21[145] | 31[214] | 41[283] |
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