Changzhou Joyruns Steel Tube CO.,LTD
| Payment Terms | L/C, T/T |
| Supply Ability | 2000Tons/Month |
| Delivery Time | 20days |
| Packaging Details | plastic packing, end caps, wooden box packing |
| Standard | DIN2391, EN10305, EN10216, EN10210,EN10083-3 |
| Material | SAE4140, 42CrMo4, CK45,E235C,ST35 |
| OD SIZE | 6MM--137MM |
| WT | 1MM--30MM |
| Length | according customer |
| Divery condition | +BK,+C,+NBK,+QT,+N,+LC |
| Brand Name | Joyruns |
| Model Number | 6mm --137mm |
| Certification | ISO9001 |
| Place of Origin | Changzhou |
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Product Specification
| Payment Terms | L/C, T/T | Supply Ability | 2000Tons/Month |
| Delivery Time | 20days | Packaging Details | plastic packing, end caps, wooden box packing |
| Standard | DIN2391, EN10305, EN10216, EN10210,EN10083-3 | Material | SAE4140, 42CrMo4, CK45,E235C,ST35 |
| OD SIZE | 6MM--137MM | WT | 1MM--30MM |
| Length | according customer | Divery condition | +BK,+C,+NBK,+QT,+N,+LC |
| Brand Name | Joyruns | Model Number | 6mm --137mm |
| Certification | ISO9001 | Place of Origin | Changzhou |
| High Light | 48*12mm Seamless Alloy Steel Tube ，SAE4140 Seamless Alloy Steel Tube ，EN10083-3 Nickel Alloy Pipe | ||
SAE4140+QT EN10083-3 Cold drawing Alloy Precision steel tube
Typical Uses
4140 HFS tubes are for high-pressure and heavy-duty applications that require strength. They are used in a broad range of applications, including:
4140 alloy steel material is a high-quality Quenched and Tempered Alloy Structural steel, It belongs to the high-quality medium carbon alloy steel, Oil Quenched & Tempered Hardness is 28-34 HRC.4140 Annealing delivery hardness less than 250HB.
Chemical Composition of AISI 4140 QT Tubing
| Standard | Grade | C | Mn | P | S | Si | Ni | Cr | Mo |
| ASTM A29 | 4140 | 0.38-0.43 | 0.75-1.00 | 0.035 | 0.040 | 0.15-0.35 | – | 0.8-1.10 | 0.15-0.25 |
| EN 10250 | 42CrMo4/ 1.7224 | 0.38-0.45 | 0.6-0.9 | 0.035 | 0.035 | 0.4 | – | 0.9-1.2 | 0.15-0.30 |
| JIS G4105 | SCM440 | 0.38-0.43 | 0.60-0.85 | 0.03 | 0.03 | 0.15-0.35 | – | 0.9-1.2 | 0.15-0.30 |
Mechanical Properties of SAE 4140 QT Tube
| Properties | Metric | Imperial |
| Tensile strength | 655 MPa | 95000 psi |
| Yield strength | 415 MPa | 60200 psi |
| Bulk modulus (typical for steel) | 140 GPa | 20300 ksi |
| Shear modulus (typical for steel) | 80 GPa | 11600 ksi |
| Elastic modulus | 190-210 GPa | 27557-30458 ksi |
| Poisson’s ratio | 0.27-0.30 | 0.27-0.30 |
| Elongation at break (in 50 mm) | 25.70% | 25.70% |
| Hardness, Brinell | 197 | 197 |
| Hardness, Knoop (converted from Brinell hardness) | 219 | 219 |
| Hardness, Rockwell B (converted from Brinell hardness) | 92 | 92 |
| Hardness, Rockwell C (converted from Brinell hardness. Value below normal HRC range, for comparison purposes only) | 13 | 13 |
| Hardness, Vickers (converted from Brinell hardness) | 207 | 207 |
| Machinability (based on AISI 1212 as 100 machinability) | 65 | 65 |
Company Details
Business Type:
Manufacturer,Agent,Exporter,Seller
Year Established:
2000
Total Annual:
10000000-20000000
Employee Number:
150~300
Ecer Certification：
Verified Supplier
Changzhou Joyruns Steel Tube Co., Ltd specializes in the export of steel pipes for 20 years. We have been a leading supplier of high-quality steel pipes of carbon, alloy, nickel material & copper, which is one of the most professional Bundy and stainless steel pipe manufactur... Changzhou Joyruns Steel Tube Co., Ltd specializes in the export of steel pipes for 20 years. We have been a leading supplier of high-quality steel pipes of carbon, alloy, nickel material & copper, which is one of the most professional Bundy and stainless steel pipe manufactur...
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