JIS G3345 Grade Stkm11A Low Carbon Steel Tube To be used in Automobile and precision machinery parts, for cars and cylinder, pressure use etc.OD: 4-102mmWall thickness: 0.5-10mmProduction Standard and Steel Grade:DIN2391 (St35, St45, St52)ASTM A519 (1010, 1020, 1025, 1035, 1045)ASTM A513 (1010, 102......


| Standard | Material |
| EN10305-1 | E215, E235, E255, E355,C45E, 30GrMo |
DIN2391 | ST35, ST45, ST52, ST37.4 |
| DIN1630 | ST37.4,ST44.4,ST52.4 |
BS6323/4 | CFS3,CFS4,CFS5,CFS8 |
| ASTMA519 | SAE1010,SAE1020,SAE1045 |
| JISG3445 | STKM11A,STKM13A |
| SAEJ524 | SAE1010 |
| Delivery Condition | Heat Treatment Process |
+C | Cold drawn/hard. After the last cold forming, no heat treatment. |
| +LC | Cold drawn/soft.After the last heat treatment follows the cold drawing there is a light finishing pass. |
| +SR | Cold drawn and stress relieved annealed. After the final cold drawing process the tubes are stress relieved annealed in a controlled atmosphere. |
| +A | After the final cold drawing process the tubes are stress relieved annealed in a controlled atmosphere. |
| +N | Normalized. After the last cold drawing process the tubes are annealed in a controlled atmosphere. |
| Standards | Classifications | Descriptions | Applications | |
| JIS3445 Carbon Steel Tube For Mechanical Structure | Class 11 | A | STKM11A | Exhaust Pipe, Steering, Shock Absorber, Outer Diameter, Safety Handle, Print Roll, Motor Cover, Furniture |
| Class 12 | A | STKM12A | Cross Member, Axle Tube, Mechanical Roll, Bearing, Back Metal | |
| B | STKM12B | Propeller, Shaft, Oil Pressure, Cylinder | ||
| C | STKM12C | Front Took, Front Hook | ||
| Class 13 | A | STKM13A | Propeller Shaft, Steering System, Cross Member, Kiru Pipe | |
| B | STKM13B | Oil Pressure Clinder, Breaking Back Metal, Mechanical Roll, Axle Tube, Propeller Shaft, Steering System | ||
| C | STKM13C | Propeller Shaft, Axle Tube, Steering System | ||
| Class 14 | A | STKM14A | Steering System | |
| B | STKM14B | Cross Member, Push Tube, Axle Housing | ||
| C | STKM14C | Axle Tube, Oil Pressure Cylinder | ||
| Class 15 | A | STKM15A | Cross Member, Frame Valve Locker Shaft, Side Member, Axle Tube, Steering System, Exhaust Tube | |
| C | STKM15C | Propeller Shaft | ||







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