HAINER STEEL INDUSTRIAL CO.,LTD
| Payment Terms | T/T, L/C at sight |
| Supply Ability | 1000Tons/Month |
| Delivery Time | 20-25 days |
| Brand Name | Hainer Steel |
| Model Number | St35, St37, St45, St52, E235, E355 etc |
| Certification | ISO9001,SGS,CQC,BV, TUV etc. |
| Place of Origin | China |
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Product Specification
| Payment Terms | T/T, L/C at sight | Supply Ability | 1000Tons/Month |
| Delivery Time | 20-25 days | Brand Name | Hainer Steel |
| Model Number | St35, St37, St45, St52, E235, E355 etc | Certification | ISO9001,SGS,CQC,BV, TUV etc. |
| Place of Origin | China |
DIN 2391 ST35 BK Thick Wall High - Precision Steel Tube , Round Cold Rolled Pipe
QuickDetail:
Description:
Standard:
ChinaStandardGB8162-2008,GB3639-2000
AmericanStandardASTMA106,ASTMA519,ASTMA513,ASTMA179
GermanyStandardDIN2391,DIN2445
JapaneseStandardJISG3445etc
European Standard EN10305
Specification
| Designation | Symbol | Description |
| Cold finished (hard) | BK(+C) | 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(+SR) | 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(+A) | The last Cold forming process is followed by annealing in a controlled atmosphere. |
| Normalized | NBK(+N) | The last cold forming process is followed by annealing above the upper transformation point in a controlled atmosphere. |
DIN 2391 Precision seamless steel tube
This Standard applies to seamless precision steel tubes; and, in compliance with ISO/DIS 3304, those tube dimensions have een selectied from the range of manufactura le tu e dimensions which are mainly used as design elements
If tubes having the tolerances and are produced according to the technical conditions of deivery as specified in this Standard are to e used as pipelines, then the dimensions specified in DIN 2448 may from time to time be used. These tubes must be ordered according to quality grade C.
| Grade | Mfg. Process | Chemical composition | |||||||||
| C | Si | Mn | P | S | Ni | Cr | Mo | Others | ① | ||
| ② | |||||||||||
| ③ | |||||||||||
| ④ | |||||||||||
| St30Si | S | 0.10Max | 0.30Max | ≤0.55 | 0.040Max | 0.040Max | - | - | - | - | ① |
| ② | |||||||||||
| ③ | |||||||||||
| ④ | |||||||||||
| St30A1 | S | 0.10Max | 0.05Max | ≤0.55 | 0.040Max | 0.040Max | - | - | - | Al deoxydized | ① |
| ② | |||||||||||
| ③ | |||||||||||
| ④ | |||||||||||
| St35 | S | 0.17Max | 0.35Max | ≥0.40 | 0.050Max | 0.050Max | - | - | - | - | ① |
| ② | |||||||||||
| ③ | |||||||||||
| ④ | |||||||||||
| St45 | S | 0.21Max | 0.35Max | ≥0.40 | 0.050Max | 0.050Max | - | - | - | - | ① |
| ② | |||||||||||
| ③ | |||||||||||
| ④ | |||||||||||
| St52 | S | 0.22Max | 0.55Max | ≥1.60 | 0.050Max | 0.050Max | - | - | - | - | ① |
| ② | |||||||||||
| ③ | |||||||||||
| ④ | |||||||||||
①Cold-finished/hard ②Cold-finished/soft ③Annealed ④Normalized
| Grade | Material | Tensile Test MPa or N/mm2 | Remaks(Similar to JIS) | Possibility Temperature | |
| Min Yield point | Tensile Strength | ||||
| St30Si | 1.0211 | - | 400Min | (STKM11) | |
| - | 355Min | ||||
| - | 285Min | ||||
| 215 | 295~420 | ||||
| St30Al | 1.0212 | - | 400Min | (STKM11) | |
| - | 355Min | ||||
| - | 285Min | ||||
| 215 | 295~420 | ||||
| St35 | 1.0308 | - | 440Min | (STC38) | |
| - | 370Min | ||||
| - | 315Min | ||||
| 235 | 340~470 | ||||
| St45 | 1.0408 | - | 540Min | (STKM13) | |
| - | 470Min | ||||
| - | 390Min | ||||
| 255 | 440~570 | ||||
| St52 | 1.0580 | - | 590Min | (STKM19) | |
| - | 540Min | ||||
| - | 490Min | ||||
| 350 | 490~630 | ||||
Applications:
1. Automotive fields
A. Fuel injection lines/nozzles
B. CNG (Compressed Nature Gas) tube-- Burst pressure: 1307Bar, Working Pressure: around 350bar
C. Drive transmission: Steering column elements
D. Gear shafts, hand brake, front axles, airbag inflators, stabilizers, seat fasteners, front-wheel drive shafts
2. Hydraulic Fields
A. Hydraulic circuits (HPL), pneumatic lines, and hydraulic suspension system
B. Hydraulic cylinders (HPZ)
Ouradvantage
Weownedspecialequipmentformanufacturingvarioushighprecisionproducts
Company Details
Year Established:
2010
Total Annual:
5000000-10000000
Employee Number:
500~1000
Ecer Certification：
Active Member
HAINER STEEL INDUSTRIAL CO.,LTD was established in November 3rd,2010,The formerly deal in stainless steel products for domestic market 15years. Recently,the most of business in international market,likePakistan,Jordan,U.A.E,USA Bangladesh,Saudi Arabia,Middle East,South American,Africa... HAINER STEEL INDUSTRIAL CO.,LTD was established in November 3rd,2010,The formerly deal in stainless steel products for domestic market 15years. Recently,the most of business in international market,likePakistan,Jordan,U.A.E,USA Bangladesh,Saudi Arabia,Middle East,South American,Africa...
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