SUZHOU FRANK STEEL CO.,LTD.
| Payment Terms | T/T, L/C |
| Supply Ability | 1000 Ton per 30 days |
| Delivery Time | about 30 work days |
| Packaging Details | Simple packing in hexagon shape per bunch or plywooden boxes |
| Application | Heavy Industrial Machinery Pipe |
| Standard | DIN2391 ST30Al |
| Thickness | 0.8-12mm |
| Technique | Cold Drawn |
| Length | As customer's require |
| Type | Seamless，spin over |
| Outer diameter | 6-168mm |
| Features | No deformation in Cold bending |
| Brand Name | FRANK STEEL |
| Model Number | DIN2391 ST30Al |
| Certification | DNV / LR / BV/ SGS |
| Place of Origin | P.R.CHINA |
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Product Specification
| Payment Terms | T/T, L/C | Supply Ability | 1000 Ton per 30 days |
| Delivery Time | about 30 work days | Packaging Details | Simple packing in hexagon shape per bunch or plywooden boxes |
| Application | Heavy Industrial Machinery Pipe | Standard | DIN2391 ST30Al |
| Thickness | 0.8-12mm | Technique | Cold Drawn |
| Length | As customer's require | Type | Seamless，spin over |
| Outer diameter | 6-168mm | Features | No deformation in Cold bending |
| Brand Name | FRANK STEEL | Model Number | DIN2391 ST30Al |
| Certification | DNV / LR / BV/ SGS | Place of Origin | P.R.CHINA |
| High Light | 2391 precision steel pipe ，ST30Al seamless steel tube | ||
DIN2391 ST30Al Precision Seamless Steel Pipe, Flaring Without Crack
1. Description
DIN2391 ST30 AI precision cold-rolled seamless steel pipe, after cold drawing, pickling, cold rolling and high temperature heat treatment, the steel pipe surface is bright and smooth, with high precision and high finish. This kind of steel pipe has low carbon content and very low silicon content, and its hardness, tensile strength and yield strength are slightly lower than those of other steel grades. However, due to this feature, it is easier to be reprocessed, and its process performance is excellent, such as bending steel pipe. Steel pipe can bear high pressure and impact, especially suitable for hydraulic machinery and auto parts industry. This steel pipe is widely used in hydraulic equipment, die casting machinery, engineering machinery, automobile industry, and chemical fiber.
Size: 6mm-168mm.
W.T.: 0.8mm-12mm.
Shape: Round.
Production type: Cold drawn or cold rolled.
Length: Single random length/ Double random length or as customer’s actual request max length is 10m.
Grade: St30 Si, St30 Al, St35, St45, St52.
2. Surface Quality
There are generally three delivery states.
A. NBK state (no oxidation bright heat treatment) Features--- high precision, good finish, no oxide layer.
B. Black phosphating state Features--- bright in black, good color, strong rust resistance.
C. Galvanizing State Features--- meet special requirements
3. Chemical Composition
| Steel name | C max | Si max | Mn | P max | S max |
| St 30 Si | 0.1 | 0.3 | ≤0.55 | 0.025 | 0.025 |
| St 30 Al | 0.1 | 0.05 | ≤0.55 | 0.025 | 0.025 |
| 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 |
4. Mechanical Properties
| Steel Grade | Minimum values for the delivery condition | ||||||||||||
| Steel Name | Steel Number | BK | BKW | BKS | GBK | NBK | |||||||
| Rm | A % | Rm | A % | Rm | ReH | A % | Rm | A % | Rm | ReH | A % | ||
| Mpa | Mpa | Mpa | Mpa | Mpa | Mpa | Mpa | |||||||
| St 30 Si | 1.0211 | 430 | 8 | 380 | 12 | 380 | 280 | 16 | 280 | 30 | 290 to 420 | 215 | 30 |
| St 30 Al | 1.0212 | 430 | 8 | 380 | 12 | 380 | 280 | 16 | 280 | 30 | 290 to 420 | 215 | 30 |
| St 35 | 1.0308 | 480 | 6 | 420 | 10 | 420 | 315 | 14 | 315 | 25 | 340 to 470 | 235 | 25 |
| St 45 | 1.0408 | 580 | 5 | 520 | 8 | 520 | 375 | 12 | 390 | 21 | 440 to 570 | 255 | 21 |
| St 52 | 1.058 | 640 | 4 | 580 | 7 | 580 | 420 | 10 | 490 | 22 | 490 to 630 | 355 | 22 |
5. Details picture
Company Details
Business Type:
Manufacturer,Exporter,Seller
Year Established:
2005
Total Annual:
400000-500000
Employee Number:
280~300
Ecer Certification：
Active Member
Founded in 2005 in Suzhou, China, Frank steel specializes in seamless steel tube production and international trade, With the rapid development of Internet business, Frank steel, together with many famous seamless steel tube manufacturers, has jointly built an Internet business platform... Founded in 2005 in Suzhou, China, Frank steel specializes in seamless steel tube production and international trade, With the rapid development of Internet business, Frank steel, together with many famous seamless steel tube manufacturers, has jointly built an Internet business platform...
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