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Stainless steel shaped steel pipe is a general term for steel pipe with a cross-sectional shape other than a round pipe, there are welded shaped pipe and seamless shaped pipe. Because of the material, stainless steel shaped pipe is generally more than 304 material, 200, 201 material hardness, forming difficulty.
Stainless steel round tube, stainless steel square tube, stainless steel rectangular tube for stainless steel conventional pipe.
Stainless steel shaped tube is widely used in a variety of structural parts, tools and mechanical parts. Compared with round tubes, stainless steel shaped tubes generally have a larger moment of inertia and cross-sectional modulus, have greater resistance to bending and torsion, can greatly reduce the weight of the structure, saving steel.
Stainless steel shaped pipe is generally based on the broken cross-section, the overall shape to distinguish, generally can be divided into: oval shaped steel pipe, triangular shaped steel pipe, hexagonal shaped steel pipe, rhombus shaped steel pipe, stainless steel patterned pipe, stainless steel U-shaped steel pipe, D-shaped pipe, stainless steel bend, S-shaped pipe bend, octagonal shaped steel pipe, semi-circular shaped steel circle, unequal hexagonal shaped steel pipe, five-petal plum-shaped shaped steel pipe, Double convex shaped steel pipe, double concave shaped steel pipe, melon shaped shaped steel pipe, conical shaped steel pipe, corrugated shaped steel pipe, etc.
Material | 201 | 202 | 304 | 316 | 430 |
C | ≤0.15 | ≤0.15 | ≤0.08 | ≤0.08 | ≤0.12 |
Si | ≤1.00 | ≤1.00 | ≤1.00 | ≤1.00 | ≤1.00 |
Mn | 5.5-7.5 | 7.5-10 | ≤2.00 | ≤2.00 | ≤1.00 |
P | ≤0.06 | ≤0.06 | ≤0.045 | ≤0.045 | ≤0.040 |
S | ≤0.03 | ≤0.03 | ≤0.030 | ≤0.030 | ≤0.030 |
Cr | 16-18 | 17-19 | 18-20 | 16-18 | 16-18 |
N | 3.5-5.5 | 4-6 | 8-10.5 | 10-14 |
|
Mo |
|
|
| 2.0-3.0 |
|
Material Item | 201 | 202 | 304 | 316 | |
Tensile Strength | ≥535 | ≥520 | ≥520 | ≥520 | |
Yield Strength | ≥245 | ≥205 | ≥205 | ≥205 | |
Extension | ≥30% | ≥30% | ≥35% | ≥35% | |
Hardness (HV) | <253 | <253 | <200 | <200 |
Name | Stainless steel special-shaped tube | |||||
Standard | ASTM A554,A249,A269 and A270,A312 | |||||
Material Grade | 201 ( Ni 1.2%), 202 (Ni 3.5%~4.5%), | |||||
Outer Diameter | 6mm--159mm | |||||
Thickness | 0.25mm - 3.5mm | |||||
Length | 6m or as customer's request | |||||
Tolerance | a) Outer diameter: +/- 0.2mm b) Thickness: +/- 0.02mm | |||||
Surface | 180G, 320G, 400G Satin / Hairline 400G, 500G, 600G or 800G Mirror finish | |||||
Application | Decoration,handrail,balustrade | |||||
Test | Squash test,extended test,water pressure test,crystal rot test,heat treatment,NDT |