JIS G3445 DIN2391 High precision stainless steel tubing for Automobile
JIS G3445 DIN2391 High precision stainless steel tubing for Automobile
Description:
- Product Item No.: 004Precision-Cosco Steel
- OD:6-80mm, WT:1-10mm, Length: 3000mm or 6000mm/pc
- Tolerances: OD+/- 0.05, WT: +/-5%*S, or by agreement
- Steel Grade: St30Al, St35, St37, St37.4, St44, St45, St52.4, E195, E235, E255, E355
- Delivery conditions: BK, BKS, BKW, NBK, GBK
- Tube ends: tubes are delivered with plain ends without burrs at the ends of the tube. Upon request, ends could be plugged with plastic caps
- Testing : Testing is performed in accordance with corresponding standards or by agreement
• flattening test , drift expanding test, flaring test, bending test
• mechanical properties test
• NDT for detection of transverse imperfections and wall imperfections - Packing and Protective coating:
Finished tubes are heat treated in protetive atmosphere, and light oiled, packed in round or hexagonal bundles with weight max.2000 kg. Other possibilities by agreement - Marking: Registered logo,Heat Number,Steel Grade,Standard,Size
- H.S Code: 7304.9000
- Material: A/SA179, A/SA192,
20Cr / AISI5120/ Scr420/ 20Cr4; 30CrMo/ AISI4130/ SCM430/ 25CrMo4
40Cr/ AISI5140/ Scr440/ 41Cr
ST35/ 1.0308; ST37.4/1.0255;ST45/1.0408 etc.
Standard:
American Standard ASTM A106, ASTM A519, ASTM A513,ASTM A179
Germany Standard DIN2391, DIN2445
Japanese Standard JIS G3445 etc
European Standard EN10305
Applications:
We,this type seamless steel pipe be widely used in kinds of industries:
- Bicycle spindle, hub, carriage, handle of children cart
- Automobile oil duct, oil, duct connector, shock absorb-er,sun visor,level joy stick
- Sports equipment,electric roller
- Sewing machine, medical equipment
Specifications
Standard:JIS G3445
USES:Applicable to machinery, automobile, bicycle, furniture, appliances and other mechanical parts with carbon steel pipe
The main production steel grades:
STKM11A, STKM12 (A, B, C), STKM13 (A, B, C), STKM14 (A, B, C)
| Standard | Chemical Composition(%) | |||||
| Steel Grade | C | Si | Mn | P | S | |
| JIS G3445 | STKM11A | ≤0.12 | ≤0.35 | ≤0.60 | ≤0.040 | ≤0.040 |
| STKM12A | ≤0.20 | ≤0.35 | ≤0.6 | ≤0.040 | ≤0.040 | |
| STKM12B | ||||||
| STKM12C | ||||||
| STKM13A | ≤0.25 | ≤0.35 | 0.30-0.90 | ≤0.040 | ≤0.040 | |
| STKM13B | ||||||
| STKM13C | ||||||
| STKM14A | ≤0.30 | ≤0.35 | 0.30-1.00 | ≤0.040 | ≤0.040 | |
| STKM14B | ||||||
| STKM14C | ||||||
| Mechanical Properties | ||||
| Steel Grade | (Mpa)Tensile Strength | (Mpa)Yield Strength | (%)Elongation | |
| JIS G3445 | STKM11A | ≥295 | ≥35 | |
| STKM12A | ≥345 | ≥175 | ≥35 | |
| STKM12B | ≥390 | ≥275 | ≥25 | |
| STKM12C | ≥470 | ≥355 | ≥20 | |
| STKM13A | ≥375 | ≥215 | ≥30 | |
| STKM13B | ≥440 | ≥305 | ≥20 | |
| STKM13C | ≥510 | ≥380 | ≥15 | |
| STKM14A | ≥410 | ≥245 | ≥25 | |
| STKM14B | ≥500 | ≥355 | ≥15 | |
| STKM14C | ≥550 | ≥410 | ≥15 | |
Process
Our advantage
We owned special equipment for manufacturing various high precision products
- High-precision cold drawing unit
- Bright annealing oven
- Straighter
- 100% UT inspection if buyer requested
- 100% ET inspection if buyer requested
Get in Touch
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