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JIS G3445 DIN2391 High precision stainless steel tubing for Automobile
Description:
20Cr/AISI5120/Scr420/20Cr4;30CrMo/AISI4130/SCM430/25CrMo4
40Cr/AISI5140/Scr440/41Cr
ST35/1.0308;ST37.4/1.0255;ST45/1.0408etc.
Standard:
AmericanStandardASTMA106,ASTMA519,ASTMA513,ASTMA179
GermanyStandardDIN2391,DIN2445
JapaneseStandardJISG3445etc
European Standard EN10305
Applications:
We,thistypeseamlesssteelpipebewidelyusedinkindsofindustries:
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
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