
| Specification | Pipe Type | Manufacturing Process | Outer Diameter (OD) | Ready Sizes |
| Details | Carbon Welded Steel Pipe, ERW Steel Pipe, SAN657-3 ERW Steel Pipe, SAN657-3 Welded Steel Pipe, SAN657-3 Conveyor Tube | High Frequency Welding | 101MM - 219MM | 127MM, 152MM, 165MM, 178MM, 219MM |
PRODUCT DESCRIPTION
Applications: SANS657-3 steel tubes for rolls for conveyor belt idlers
DESCRIPTION:
Standard: SANS 657-3
Grade: C250-CQ
Length: 5.5-8M or specified length as required.
Ends: Plain End, Beveled End, threaded
Finishes: Bare, Oiled, Mill Varnish, Galvanized,
Packing: Tubes shall be supplied loose or bundled as required.When supplied in bundles, only tubes of the same nominal outside diameter and wall thickness shall be packed together.
| SANS 657-3:2015-CONVEYOR ROLLER TUBES | |||||
| Nominal Outside Diameter | Actual outside Diameter | Outside Diameter (MM) | Ovality | Wall Thickness | |
| MM | MM | Max | Min | Max | MM |
| 101 | 101.6 | 101.8 | 101.4 | 0.4 | 3 |
| 127 | 127 | 127.2 | 126.8 | 0.4 | 3.8 |
| 152 | 152.4 | 152.6 | 152.2 | 0.4 | 3.8 |
| 165 | 165.3 | 165.3 | 165 | 0.5 | 4.5 |
| 178 | 177.8 | 178.1 | 178 | 0.5 | 4.5 |
| 219 | 219.1 | 219.4 | 219 | 0.6 | 6 |
Chemical Composition and mechanical properties SAN657-3 ERW Steel Pipe
Grade and Chemical Composition (ï¼…)
| Grade | C≤ | P≤ | S≤ |
| C250-CQ | 0.25% | 0.060% | 0.060% |
Mechanical Properties
| Grade | Tensile Strength (Min) | Yield Strength | Elongation(Min ) |
| C250-CQ | 320N/mm2 | 230 N/mm2 | 10% |
| API 5L / ASTM A53 Carbon Welded Steel Pipe | API 5L / ASTM A53 ERW Steel Pipe |
| seam welded tube manufacturer | API 5L / ASTM A53 butt welded pipe |
| high frequency welded pipe supplier | galvanized pipe welding |
| API 5L / ASTM A53 erw efw steel pipes | seam welded pipe |
| electric welded pipe suppliers in China | API 5L / ASTM A53 gr.b erw welded pipe manufacturer |
| Api 5l cs erw pipe suppliers in Korea | astm a53 grade b erw pipe |
| A53 erw black pipe suppliers | electric resistance welded pipe |
| A53 pipe welded sch 40 | erw steel tube |
| straight seam welded pipe | erw steel pipe |
| helical welded pipe | welding tube steel |
| A53 gr.b rolled and welded pipe manufacturer | welding black pipe manufacturer |
| carbon steel welded pipe | seamed pipe |
| erw line pipe supplier | A53 erw pipe manufacturer manufacturer |
| erw carbon steel pipe supplier | erw steel pipes |
| hfw steel pipe supplier | erw welding steel pipes |
| hfw pipes manufacturer | erw tube |
| longitudinal welded pipe suppliers | erw pipe |

| Specification | Outside Diameter (OD) | Wall Thickness (WT) | Standard | Steel Material |
| Details | 50mm - 140mm (2 inch - 5 inch) | 2.5mm - 8.0mm | YB/T 5209-2010, DIN 17230, ASTM A295, ASTM A534, JIS G 4805, JASOC 301-1977, DIN2293, DIN2394, DIN2395, JIS3445 | 100Cr6, GCr15, 52100, 5195, 5090M, 1070M, 5160, 4118H, 4320H, 4620H, SUJ 1, SUJ 2, SUJ 3, SUJ 4, SUJ 5 |
PRODUCT DESCRIPTION
Automobile transmission shaft is one of the main components of automobile transmission system. The steel pipe for transmission shaft is a special thinwall thicknes straight seam welded pipe. In order to ensure stable and reliable torque transmission.
There is strict technical requirements on these drive shaft tube:
1. high strength yield
2. strict precision on dimension
3. The most optima Manufacturing process -
anneal the tube blank before cold drawing to improve the metallographic structure of the pipe and weld, reduce the strength and improve the plasticity. Then straightening, pickling, phosphating, saponification, cold drawing.
| No. | Size | Inside burr height | Degree of Curvature | Ellipticity | Coaxiality | Outside diameter flaring degree | Flatten |
| 1 | 50*2.5 | +0.15/-0.05 | ≤ 0.30 | ≤ 0.25 | ≤ 0.20 | 10% | 2/3D |
| 2 | 63.5*2.5 | +0.15/-0.05 | ≤ 0.30 | ≤ 0.25 | ≤ 0.20 | 10% | 2/3D |
| 3 | 76*2.5 | +0.20/-0.05 | ≤ 0.30 | ≤ 0.25 | ≤ 0.20 | 10% | 2/3D |
| 4 | 89*2.5 | +0.20/-0.05 | ≤ 0.30 | ≤ 0.25 | ≤ 0.20 | 10% | 2/3D |
| 5 | 89*4 | +0.20/-0.05 | ≤ 0.30 | ≤ 0.30 | ≤ 0.20 | 10% | 2/3D |
| 6 | 89*5 | +0.20/-0.05 | ≤ 0.30 | ≤ 0.30 | ≤ 0.20 | 10% | 2/3D |
| 7 | 90*3 | +0.20/-0.05 | ≤ 0.30 | ≤ 0.30 | ≤ 0.20 | 10% | 2/3D |
| 8 | 108*7 | +0.20/-0.05 | ≤ 0.30 | ≤ 0.30 | ≤ 0.20 | 8% | 3/4D |
| 9 | 109.8*6 | +0.20/-0.05 | ≤ 0.30 | ≤ 0.30 | ≤ 0.20 | 8% | 3/4D |
| 10 | 109.8*7 | +0.20/-0.05 | ≤ 0.30 | ≤ 0.30 | ≤ 0.20 | 8% | 3/4D |
| 11 | 120*4 | +0.20/-0.05 | ≤ 0.30 | ≤ 0.30 | ≤ 0.20 | 10% | 2/3D |
| 12 | 120*6 | +0.20/-0.05 | ≤ 0.30 | ≤ 0.30 | ≤ 0.20 | 8% | 3/4D |
| 13 | 120*8 | +0.20/-0.05 | ≤ 0.30 | ≤ 0.30 | ≤ 0.20 | 8% | 3/4D |
| 14 | 134*4 | +0.20/-0.05 | ≤ 0.30 | ≤ 0.30 | ≤ 0.20 | 10% | 2/3D |
| 15 | 140*6 | +0.20/-0.05 | ≤ 0.30 | ≤ 0.30 | ≤ 0.20 | 8% | 3/4D |
| Grade | c | Si | Mn | P | S | Nb | V | Ti | Cr | Cu | Ni | Als | N | B | Mo |
| CZ300 | 0.05-0.12 | ≤ 0.37 | 0.35 〜0.65 | 0.035 | 0.035 < | — | — | 0.06-0.14 | 0.1 | 0.25 | 0.25 | — | — | — | — |
| CZ350 | 0.17-0.24 | 0.17-0.37 | 0.35-0.65 | 0.035 | 0.035 | — | — | — | 0.25 | 0.25 | 0.25 | — | — | — | — |
| CZ420 | ≤ 0.20 | ≤ 0.50 | 0.80-1.70 | 0.03 | 0.03 | 0.07 | 0.2 | W 0.20 | 0.3 | 0.25 | 0.8 | 0.015 | 0.015 | — | 0.2 |
| CZ460 | ≤ 0.20 | ≤ 0.50 | 1.0 〜1.80 | 0.03 | 0.03 | 0.11 | 0.2 | W 0.20 | 0.3 | 0.25 | 0.8 | 0.015 | 0.015 | 0.004 | 0.2 |
| CZ500 | ≤ 0.18 | ≤ 0.50 | 1.0 〜1.80 | 0.03 | 0.03 | 0.11 | 0.12 | W 0.20 | 0.6 | 0.25 | 0.8 | 0.015 | 0.015 | 0.004 | 0.2 |
| CZ550 | ≤ 0.18 | ≤ 0.50 | 1.0-2.0 | 0.03 | 0.03 | 0.11 | 0.12 | W 0.20 | 0.08 | 0.25 | 0.8 | 0.015 | 0.015 | 0.004 | 0.2 |
| 440QZ | ≤ 0.12 | ≤ 0.30 | ≤ 1.30 | ≤ 0.025 | ≤ 0.02 | — | |||||||||
| 480QZ | ≤ 0.16 | ≤ 0.30 | ≤ 1.40 | ≤ 0.025 | ≤ 0.02 | — | |||||||||
| T700QZ | ≤ 0.10 | ≤ 0.15 | ≤ 12.10 | ≤ 0.025 | ≤ 0.01 | — | |||||||||
| ZQS700Z | ≤ 0.12 | ≤ 0.20 | ≤ 12.10 | ≤ 0.025 | ≤ 0.01 | — |
| Mechanical Properties | ||||
| Type | Grade | T.S.Rm Mpa | Y.S.Rel MPa | Percentage Elongation After Fracture % |
| Iã€II | CZ300 | 450-570 | N 300 | N 15 |
| CZ420 | 520-680 | N 420 | m 15 | |
| CZ460 | 550-720 | N 460 | m 15 | |
| CZ500 | 610-770 | 3500 | m 15 | |
| CZ550 | 670〜830 | m 550 | N 14 | |
| 440QZ | 500-600 | N 440 | N 22 | |
| 480QZ | 550 ~ 650 | N 480 | N 22 | |
| T700QZ | 750 ~ 950 | > 700 | N 15 | |
| ZQS700Q | 750 ~ 950 | m 700 | N 15 | |
| III | CZ350 | 460-590 | m 350 | m 10 |

| Specification | Outside Diameter (OD) | Wall Thickness (WT) | Standard | Application |
| Details | 60mm - 219mm (2 inch - 8 inch) | 3.0mm - 8.0mm | SAN 657-3, ASTM A500, GB/T 13793-2010 | Welded steel tubes used for rolls for conveyor belt idlers |
| No. | 0.D | W.T | O.D Deviation | W.T Deviation | The hardness of burr | Ellipticity | Flexib ility | Coaxiality | Outer tube flaring rate | Flatten |
| 1 | 89 | 3.0-4.0 | ±0.40 | +0.1/0.2 | +0.20/-0.05 | 0.40 | W0.30 | <0.20 | 10% | 2/3D |
| 2 | 108 | 3.0-5.0 | ±0.40 | ±5%t | +0.20/-0.05 | 0.40 | W0.30 | W0.20 | 10% | 2/3D |
| 3 | 127 | 3.0-5.0 | ±0.40 | ±5%t | +0.20/-0.05 | 0.40 | W0.30 | W0.20 | 10% | 2/3D |
| 4 | 133 | 3.5-5.0 | ±0.60 | ±5%t | +0.20/-0.05 | 0.53 | <0.30 | W0.20 | 10% | 2/3D |
| 5 | 152 | 3.5-6.0 | ±0.60 | ±5%t | +0.20/-0.05 | 0.53 | W0.30 | <0.20 | 10% | 2/3D |
| 6 | 159 | 3.5-6.0 | ±0.60 | ±5%t | +0.20/-0.05 | 0.60 | W0.30 | W0.20 | 10% | 2/3D |
| 7 | 178 | 5.0-8.0 | ±0.60 | ±7.5%t | +0.20/-0.05 | 0.53 | W0.30 | W0.20 | 10% | 2/3D |
| 8 | 194 | 5.0-8.0 | ±0.60 | ±7.5%t | +0.20/-0.05 | 0.6 | W0.30 | <0.20 | 10% | 2/3D |
| 9 | 219 | 5.0-8.0 | ±0.5%D | ±7.5%t | +0.20/-0.05 | 0.6 | W0.30 | <0.20 | 10% | 2/3D |
| Grade | Re|./(N/mm2) Lower yield strength | FUN mm” Tensile strength | A/% Elongation after fracture |
| Not less than | |||
| 08ã€10 | 195 | 315 | 22 |
| 15 | 215 | 355 | 20 |
| 20 | 235 | 390 | 19 |
| Q195 | 195 | 315 | 22 |
| Q215AQ215B | 215 | 335 | 22 |
| Q235Aã€Q235Bã€Q235C | 235 | 375 | 20 |
| Q295Aã€Q295B | 295 | 390 | 18 |
| Q345Aã€Q345Bã€Q345C | 345 | 470 | 18 |
| C250-CQ | 230 | 320 | 10 |
| Re|./(N/mm2) Lower yield strength | RJfN/ mm2) Tensile strength | A/% Elongation after fracture | |
| Grade | Not less than | ||
| 08ã€10 | 205 | 375 | 13 |
| 15 | 225 | 400 | 11 |
| 20 | 245 | 440 | 9 |
| Q195 | 205 | 335 | 14 |
| Q215Aã€Q215B | 225 | 355 | 13 |
| Q235Aã€Q235Bã€Q235C | 245 | 390 | 9 |
| Q295Aã€Q295B | —— | —— | —— |
| Q345Aã€Q345Bã€Q345C | —— | —— | —— |

| Specification | Pipe Type | Ready Sizes |
| Details | Carbon Welded Steel Pipe, ERW Steel Pipe, ASTM A53 GRB ERW Structural Steel Pipe | 4, 6, 8, 10, 12, 16, 18, 20, and 24 inch |
PRODUCT DESCRIPTION
ASTM A53 Gr.B electric resistance welded(ERW) steel pipes are manufactured as per ASTM A53 specification,they are welded steel pipes made by electric resistance welding method. ASTM A53 specification covers seamless and welded black and hot-dipped galvanized steel pipe in NPS 1⁄8 to NPS 26(DN6 to DN 650).It is acceptable for welding,flagging,and bending.
1. ASTM A53 GR.B ERW steel pipe Testing and Inspection Reports: EN 10204 3.1, PMI Test Reports, Visual Inspection Reports, Third Party Inspection Reports, Destructive Test Report, Non Destructive Test Reports, Mill TC EN 10204 3.1, NABL Approved Lab, Chemical and Mechanical Reports, India Boiler Regulations (IBR) Test Certificate
2. Packing: ASTM A53 GR.B ERW Steel Pipe Packed in Wooden Boxes, Plastic Bags, Steel Strips Bundled, or as per Customers Requests
3. Finishes: Bare, Oiled, Mill Varnish, Galvanized, FBE, FBE Dual, 3LPE, 3LPP, Coal Tar, Concrete Coating and Tape Wrap.End Finishes:Beveled, Square Cut, Threaded & Coupled.
4. Application & uses: Suitable for Conveying gas, water, oil, and other liquefied media.
Value added service;steel structure.
| Type S (seamless) | Type E (electric-resistance welded) | Type F (furnace- welded pipe) | |||
| Grade A | Grade B | Grade A | Grade B | Grade A | |
| Carbon max. % | 0.25 | 0.30 | 0.25 | 0.30 | 0.3 |
| Manganese % | 0.95 | 1.2 | 0.95 | 1.2 | 1.2 |
| Phosphorous, max. % | 0.05 | 0.05 | 0.05 | 0.05 | 0.05 |
| Sulfur, max. % | 0.045 | 0.045 | 0.045 | 0.045 | 0.045 |
| Copper, max.% | 0.40 | 0.40 | 0.40 | 0.40 | 0.4 |
| Nickel, max. % | 0.40 | 0.40 | 0.40 | 0.40 | 0.4 |
| Chromium, max. % | 0.40 | 0.40 | 0.40 | 0.40 | 0.4 |
| Molybdenum, max. % | 0.15 | 0.15 | 0.15 | 0.15 | 0.15 |
| Vanadium, max. % | 0.08 | 0.08 | 0.08 | 0.08 | 0.08 |
| For NPS 1 1/2 and Smaller Sizes | For NPS 2 and Larger Sizes | ||
| 1/64" | 1/32" under | 1% over | 1%under |
Tensile Requirements
| Seamless and Electric-resistance-welded | Continuous-Welded | ||
| Grade A | Grade B | ||
| Tensile Strength, min., psi | 48,000 | 60,000 | 45,000 |
| Yield Strength, min., psi | 30,000 | 35,000 | 25,000 |
ASTM A53 Grade B ERW structural steel Pipe Equivalent
| UNS | KS | JIS | DIN Type | DIN Number | EN |
| K03005 | SPPS42 | STPG410 | St45/St42-2/ST37 | 1629 /1626 | 1.0408/1.0040 |
TECHNICAL FLOWS
Steel-making in Converter → Refine → Continuous Casting → Hot Rolling → Uncoiling → Accumulator → Cross Welding → Strip End Shear → Strip Leveling → Edge Milling →Strip UT → Forming → Electric Resistance Welding → Sizing → Air Cooling+ Water Cooling → Online Weld Seam Heat Treatment → Online Weld SEAM UT → Beveling → Hydro-static Testing → Weld Seam UT → Pipe UT → Appearance and Dimension Check → Coating → Marking → Length-measuring and weighing → Packing → Transportation
| API 5L / ASTM A53 Carbon Welded Steel Pipe | API 5L / ASTM A53 ERW Steel Pipe |
| seam welded tube manufacturer | API 5L / ASTM A53 butt welded pipe |
| high frequency welded pipe supplier | galvanized pipe welding |
| API 5L / ASTM A53 erw efw steel pipes | seam welded pipe |
| electric welded pipe suppliers in China | API 5L / ASTM A53 gr.b erw welded pipe manufacturer |
| Api 5l cs erw pipe suppliers in Korea | astm a53 grade b erw pipe |
| A53 erw black pipe suppliers | electric resistance welded pipe |
| A53 pipe welded sch 40 | erw steel tube |
| straight seam welded pipe | erw steel pipe |
| helical welded pipe | welding tube steel |
| A53 gr.b rolled and welded pipe manufacturer | welding black pipe manufacturer |
| carbon steel welded pipe | seamed pipe |
| erw line pipe supplier | A53 erw pipe manufacturer manufacturer |
| erw carbon steel pipe supplier | erw steel pipes |
| hfw steel pipe supplier | erw welding steel pipes |
| hfw pipes manufacturer | erw tube |
| longitudinal welded pipe suppliers | erw pipe |
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