Active Member
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[China]
Address: Daqiao Developing Zone Haiyan,Zhejiang Province,China
Contact name:Richard
Torich International Limited |
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Carbon Steel AISI 1045 Precision Ground Shafting Precision Ground Tubing
andard & Material | Carbon Steel | ASTM A519 Standard | MT1010, MT1020, 1008, 1010, 1018, 1020, 1025, 1030, 1045, 1518 | |
| JIS G3445 Standard | STKM11A STKM12A STKM12B STKM12C STKM13A STKM13B STKM13C STKM14A STKM14B STKM14C STKM15A STKM15C STKM16A STKM16C STKM17A STKM17C STKM18A STKM18B STKM18C STKM19A STKM19C STKM20A | |||
| JIS G3473 Standard | STC370, STC440, STC510A, STC510, STC540, STC590A, STC590B | |||
| DIN 2391 Standard | St 35, St45, St52 | |||
| EN 10297-1 Standard | E235, E275, E315, E355, E470 | |||
| EN 10305-1 Standard | E215, E235, E355 | |||
| EN 10305-4 Standard | E215, E235, E355 | |||
| BS 6323-3 Standard | HFS 3, HFS 4, HFS 5, HFS 8 | |||
| NF A49-311 | TU 37-b, TU 52-b, TU 56-b, TU XC35 | |||
| Alloy Steel | ASTM A519 Standard | 1345, 3140, 4130, 4135, 4140, 4150, 4320, 4340, 5120, 5130 | ||
| JIS G3429 Standard | STH11, 12 STH21, 122 STH31 | |||
| JIS G3441 Standard | SCR420TK, SCM415TK, SCM418TK, SCM420TK, SCM430TK, SCM440TK | |||
Size | Size Range | Tolerance | ||
| OD | 10-80mm | -0.035 -- +0.045mm | ||
| ID | 5-74mm | ±0.035mm | ||
| WT | 1-14mm | depends on sizes | ||
| Length | random or fixed length | +0-3.5mm | ||
| Straightness | 0.15:1000, 0.4:1000, 0.5:1000 1:1000 or customized | |||
| Surface Roughness | Ra 0.02—0.4μm | |||
| Final supply conditions | ||
| Designation | Symbol | Description |
| Cold finished (hard) | BK | Tubes do not undergo heat treatment following the final cold forming and, thus, have a rather high resistance to deformation. |
| Cold finished (soft) | BKW | The final heat treatment is followed by cold drawing involving limited deformation. Appropriate further processing allows a certain degree of cold forming (e.g. bending, expanding). |
| Cold finished and stress-relieved | BKS | Heat treatment is applied following the last cold forming process. Subject to appropriate processing conditions, the increase in the residual stresses involved enables both forming and machining to a certain degree. |
| Annealed | GBK | The last cold forming process is followed by annealing in a controlled atmosphere. |
| Normalized | NBK | The last cold forming process is followed by annealing above the upper transformation point in a controlled atmosphere. |
