JIANGSU MITTEL STEEL INDUSTRIAL LIMITED
| Model NO. | ST37 ST52 |
| Surface Treatment | Black |
| Section Shape | Round |
| Outer Diameter | 6-630mm |
| Wall Thickness | 0.5-15mm |
| Length | max 25m |
| Material Grade | Carbon Steel / Alloy Steel |
| Delivery Condition | BK, BKS, BKW, NBK, GBK |
| Coating | Black painting, anti-rust oiled or varnish |
| Chemical Composition C | 0.17-0.22% |
| Chemical Composition Si | 0.35-0.55% |
| Chemical Composition Mn | 0.40-1.60% |
| Tensile Strength | 480-640 N/mm² |
| Yield Strength | 315-450 N/mm² |
| Elongation | 4-25% |
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Product Specification
| Model NO. | ST37 ST52 | Surface Treatment | Black |
| Section Shape | Round | Outer Diameter | 6-630mm |
| Wall Thickness | 0.5-15mm | Length | max 25m |
| Material Grade | Carbon Steel / Alloy Steel | Delivery Condition | BK, BKS, BKW, NBK, GBK |
| Coating | Black painting, anti-rust oiled or varnish | Chemical Composition C | 0.17-0.22% |
| Chemical Composition Si | 0.35-0.55% | Chemical Composition Mn | 0.40-1.60% |
| Tensile Strength | 480-640 N/mm² | Yield Strength | 315-450 N/mm² |
| Elongation | 4-25% | ||
| High Light | ST37 ST52 Seamless Steel Pipe ，OD 6-630mm Cold Drawn Pipe ，Cold Drawn Precision Carbon Steel Tube | ||
| Designation | Symbol | Description |
|---|---|---|
| Cold finished (hard) | BK | Tubes with high resistance to deformation, no heat treatment after final cold forming |
| Cold finished (soft) | BKW | Limited deformation with final heat treatment, suitable for cold forming |
| Cold finished and stress-relieved | BKS | Heat treatment after last cold forming, suitable for forming and machining |
| Annealed | GBK | Annealing in controlled atmosphere after last cold forming process |
| Normalized | NBK | Annealing above upper transformation point in controlled atmosphere |
| Standard | Steel Grade |
|---|---|
| Chinese Standard GB5310 | 20G, 15MoG, 12CrMoG, 12Cr2MoG, 15CrMoG, 12Cr1MoVG |
| American Standard ASTM | A106 Gr.A,B,C; A53 Gr.A,B; A179; A210 A-1,C; A333 Gr.1,3,6 |
| German Standard DIN17175 | ST35.8, ST45.8, ST37.0, ST44.0, ST52.0 |
| Japanese Standard JIS | G3454 STPG370, STPG410; G3461 STB340, STB410, STB440 |
| Grade | C max | Si max | Mn | P max | S max |
|---|---|---|---|---|---|
| St 35 | 0.17 | 0.35 | ≥0.40 | 0.025 | 0.025 |
| St 45 | 0.21 | 0.35 | ≥0.40 | 0.025 | 0.025 |
| St 52 | 0.22 | 0.55 | ≤1.60 | 0.025 | 0.025 |
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Exporter
Total Annual:
>1000000
Employee Number:
>100
Ecer Certification：
Verified Supplier
Our company is located in Wuxi City, China, we are a stainless steel plate, seamless steel pipe, round steel, steel belt, decorative pipe and other products distribution wholesale private enterprise. Our company operates stainless steel plate, seamless steel pipe, round steel, steel belt, decorative... Our company is located in Wuxi City, China, we are a stainless steel plate, seamless steel pipe, round steel, steel belt, decorative pipe and other products distribution wholesale private enterprise. Our company operates stainless steel plate, seamless steel pipe, round steel, steel belt, decorative...
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