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                                                                                Cangzhou Spiral Steel Pipes Group Co.,Ltd.

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                                                                                l290 Spiral steel pipe
                                                                                Release date:2016-11-07

                                                                                l290Spiral steel pipe l360Spiral steel pipe

                                                                                l290Spiral steel pipe                                                                                l360 spiral steel pipe

                                                                                L290 spiral steel pipe, L360 spiral pipe specifications price list

                                                                                GB spiral pipe name GB spiral steel pipe size (diameter * wall thickness) GB spiral pipe name GB spiral steel pipe size (diameter * wall thickness)
                                                                                219Spiral steel pipe 219*6 219*7 219*8 273Spiral steel pipe 273*6 273*7 273*8
                                                                                325Spiral steel pipe 325*6 325*7 325*8 325*9 325*10 426Spiral steel pipe 426*6 426*7 426*8 426*9 426*10 426*11 426*12
                                                                                630Spiral steel pipe 630*6 630*7 630*8 630*9 630*10 630*12 630*14 630*16 720Spiral steel pipe 720*6 720*7 720*8 720*9 720*10 720*12 720*14 720*16
                                                                                820Spiral steel pipe 820*6 820*7 820*8 820*9 820*10 820*12 820*14 820*16 920Spiral steel pipe 920*6 920*7 920*8 920*9 920*10 920*12 920*14 920*16
                                                                                1020Spiral steel pipe 1020*10 1020*12 1020*14 1020*16 1020*18 1020*20 1120Spiral steel pipe 1120*10 1120*12 1120*14 1120*16 1120*18 1120*20
                                                                                1220Spiral steel pipe 1220*10 1220*12 1220*14 1220*16 1220*18 1220*20 1420Spiral steel pipe 1420*10 1420*12 1420*14 1420*16 1420*18 1420*20
                                                                                1620Spiral steel pipe 1620*10 1620*12 1620*14 1620*16 1620*18 1620*20 1820Spiral steel pipe 1820*10 1820*12 1820*14 1820*16 1820*18 1820*20
                                                                                2020Spiral steel pipe 2020*10 2020*12 2020*14 2020*16 2020*18 2020*20 2220Spiral steel pipe 2220*10 2220*12 2220*14 2220*16 2220*18 2220*20
                                                                                2420Spiral steel pipe 2420*10 2420*12 2420*14 2420*16 2420*18 2420*20 2620Spiral steel pipe 2620*10 2620*12 2620*14 2620*16 2620*18 2620*20
                                                                                2820Spiral steel pipe 2820*10 2820*12 2820*14 2820*16 2820*18 2820*20 3020Spiral steel pipe 3020*10 3020*12 3020*14 3020*16 3020*18 3020*20
                                                                                L290 (X42) spiral steel yield strength 290MPa
                                                                                L290 mechanical properties of spiral steel pipe
                                                                                Mechanical properties
                                                                                chemical composition
                                                                                 
                                                                                Yield Strength
                                                                                tensile strength
                                                                                Elongation
                                                                                C
                                                                                Si
                                                                                Mn
                                                                                S
                                                                                P
                                                                                 
                                                                                MPa
                                                                                kg/mm²
                                                                                MPa
                                                                                kg/mm²
                                                                                min
                                                                                不大于
                                                                                no greater than
                                                                                no greater than
                                                                                 
                                                                                Q215AQ215B
                                                                                215
                                                                                22
                                                                                335-410
                                                                                34-42
                                                                                31
                                                                                0.09-0.15
                                                                                0.03
                                                                                0.25-0.55
                                                                                0.0500.045
                                                                                0.045
                                                                                Q235AQ235B

                                                                                Q235C

                                                                                Q235D


                                                                                Spiral steel pipe
                                                                                235
                                                                                24
                                                                                375-460
                                                                                38-47
                                                                                26
                                                                                0.14-0.220.12-0.20

                                                                                ≤0.18

                                                                                ≤0.17
                                                                                0.30
                                                                                0.30-0.650.30-0.70

                                                                                0.35-0.80

                                                                                0.35-0.80
                                                                                0.500.45

                                                                                0.40

                                                                                0.035
                                                                                0.0450.045

                                                                                0.040

                                                                                0.035
                                                                                16Mn(Q345B)
                                                                                345
                                                                                35
                                                                                510-600
                                                                                51.60
                                                                                22
                                                                                0.12-0.20
                                                                                0.20-0.55
                                                                                1.2-1.6
                                                                                0.045
                                                                                0.045
                                                                                X42
                                                                                289
                                                                                29.5
                                                                                413
                                                                                42.1
                                                                                 
                                                                                0.28
                                                                                -
                                                                                1.25
                                                                                0.030
                                                                                0.030
                                                                                X52
                                                                                358
                                                                                36.5
                                                                                455
                                                                                46.4
                                                                                0.30
                                                                                -
                                                                                1.35
                                                                                0.030
                                                                                0.030
                                                                                X56
                                                                                386
                                                                                39.4
                                                                                489
                                                                                49.9
                                                                                0.26
                                                                                -
                                                                                1.35
                                                                                0.030
                                                                                0.030
                                                                                X60
                                                                                413
                                                                                42.1
                                                                                517
                                                                                52.7
                                                                                0.26
                                                                                -
                                                                                1.35
                                                                                0.030
                                                                                0.030
                                                                                X65
                                                                                448
                                                                                45.7
                                                                                530
                                                                                54.0
                                                                                0.26
                                                                                -
                                                                                1.40
                                                                                0.030
                                                                                0.030
                                                                                X70
                                                                                482
                                                                                49.2
                                                                                565
                                                                                57.6
                                                                                0.26
                                                                                -
                                                                                1.40
                                                                                0.030
                                                                                0.030
                                                                                L245
                                                                                245
                                                                                 
                                                                                415
                                                                                 
                                                                                21
                                                                                0.26
                                                                                 
                                                                                1.15
                                                                                0.030
                                                                                0.030
                                                                                L290
                                                                                290
                                                                                 
                                                                                415
                                                                                 
                                                                                21
                                                                                0.28
                                                                                 
                                                                                1.25
                                                                                0.030
                                                                                0.030
                                                                                L360
                                                                                360
                                                                                 
                                                                                460
                                                                                 
                                                                                19
                                                                                0.3
                                                                                 
                                                                                1.25
                                                                                0.030
                                                                                0.030

                                                                                 

                                                                                L290 spiral steel pipe, L360 spiral steel pipe process
                                                                                Inspection of raw materials - Uncoiling - First flat - Cut to butt welding - Finishing - Milling - Delivery - Molding inside and outside welding - Welding slag clearance External inspection - Automatic repair welding, X-ray inspection, filming and Manual ultrasonic re-inspection - pipe end groove machining - hydrostatic pressure test - automatic length measurement weighing - spray signs - the final inspection - storage

                                                                                l290Spiral steel pipe、L360Spiral steel pipe工藝流程

                                                                                L290 spiral steel pipe, L360 spiral steel pipe use
                                                                                L290 spiral steel pipe is an important structural parts of machine tools, such as connecting rods, bolts, gears and shafts. Hardness after tempering is generally HB200-330.
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