JIS G 3445 STKM 11A Seamless CS Pipes for Mechanical Structures
JIS G 3445 STKM 11A Seamless CS pipes OD13mm x WT3.2mm,OD 8mm x ID5.1mm for Hyundai, Maruthi, Nissan, Caterpiller etc
1. Standard:
JIS G3445 Standard STKM 11A high precision seamless steel tube
2. Steel Grade:
| STKM11A STKM12A STKM12B STKM12C STKM13A STKM13B STKM13C STKM14A STKM14B STKM14C STKM15A STKM15C STKM16A STKM16C STKM17A STKM17C STKM18A STKM18B STKM18C STKM19A STKM19C STKM20A |
3. Production method:
Cold drawing on the seamless steel tubes, to reach high accuracy on the OD and WT tolerance,
with certain heat treatment to achieve better mechanical properties for bending and pressure purposes
4. Size range:
O.D.:5-100mm W.T.:1-15mm L:max12000mm
5. Packing:
In Hexagonal Bundles, with anti-rust oil protection, with seaworthy packing
6. Deliver condition:
+NAfter the final cold drawing operation the tubes are normalized in a controlled atmosphere
Please specify the final heat treatment when sending the enquiry.
7. Inspection and testing:
Chemical analysis
Tensile test
Flattening test or Drift expanding test
Dimensional inspection
Visual examination
NDT for verification of leaking tightness
| Standard & 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 | |||
| Stainless Steel | ASTM A511 Standard | MT304, MT304L, MT310S, MT316, MT316L, MT317, MT321, MT347, MT403, MT410, MT431 | ||
| ISO Standard | NACE MR-0175 | |||
|
Size |
| Size Range | Tolerance | |
| OD | 6-325mm | -0.035 -- +0.045mm | ||
| ID | 2-250mm | ±0.035mm | ||
| WT | 1-32mm | 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 | |||
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