JIS G 3429 Seamless Automotive Steel Tubes for High Pressure Gas Cylinder
Product Details
low carbon steel tube
,steel mechanical tubing
JIS G 3429 Seamless Automotive Steel Tubes for High Pressure Gas Cylinder
Products Description:
JIS G 3429 Seamless Steel Tubes for High Pressure Gas Cylinder
Well-finished inside and outside surface. Alloy Steel tubes and pipes.
Standard: JIS G 3429 Seamless Steel Tubes for High Pressure Gas Cylinder
Applications: for High Pressure Gas Cylinder
Size Range:
OD: 5-420mm WT: 0.5-50mm
Relevant standard: KS D3573
| STEEL GRADE AND CHEMICAL COMPOSITIONS max % | |||||||||
| Seel Grade | Class | C | Si | Mn | P | S | Ni | Cr | Mo |
| STH11 | Manganese Steel tube | 0.50max | 0.10-0.35 | 1.80max | 0.035max | 0.035max | - | - | - |
| STH12 | 0.30-0.41 | 0.10-0.35 | 1.35-1.70 | 0.030max | 0.030max | - | - | - | |
| STH21 | Chrome-molybdenum steel tube | 0.25-0.35 | 0.15-0.35 | 0.40-0.90 | 0.030max | 0.030max | 0.25max | 0.80-1.20 | 0.15-0.30 |
| STH22 | 0.33-0.38 | 0.15-0.35 | 0.40-0.90 | 0.030max | 0.030max | 0.25max | 0.80-1.20 | 0.15-0.30 | |
| STH31 | Nickel-molybdenum Steel tube | 0.35-0.40 | 0.10-0.50 | 1.20-1.50 | 0.030max | 0.030max | 0.50-1.00 | 0.30-0.60 | 0.15-0.25 |
| Remark:1.Alloying elements not included in Table 2 may be added as required. 2.The chemical composition given in Table 2 shall be similarly applied when product analysis is required by the purchaser | |||||||||
| Dimensional Tolerances | |||
| OD % | WT % | Tolerance allowance % | L |
| ±1 | ﹢30 0 | 20max
| ﹢30mm |
| Note: the tolerance is not available for WT＜5.6mmtubes | |||
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