SAE4140 alloy steel hollow bar
USD $1,200 - $2,000 /Ton
Min.Order:5 Tons
Changzhou Chengxin Metal Products Co., Ltd.
SAE4140 alloy steel steel hollow bar can be used to used as hollow piston rods for hydraulic cylinders,shaft sleeves,drill collars, etc. We manufacture SAE4140 alloy steel hollow bars upto 325mm by hydraulic cold drawing or machining.
Commodity: SAE4140 alloy steel hollow bar
Steel grade: SAE4140 and other grades like 20MnV6,SAE1045,S45C,CK45,SAE4130,25CrMo4,34CrMo4,etc.
Size range: 60mm*30mm - 325mm*240mm
Manufacture method: hydraulic cold drawn, machining+deep hole drilling
Delivery condition:
BK | BKS | BKW | GBK | NBK | Q+T |
+C | +LC | +SR | +A | +N | Q+T |
cold drawn/hard | cold drawn/soft | stress relieved | annealed | normalized | quenchened+tempered |
Size tolerance: size tolerance of hollow bars can be appointed by customer. The best tolerance we can ensure is as per EN10305-1 or DIN2391-1.
Chemical composition - ASTM A519 SAE4140:
Element | C | Si | Mn | P | S | Cr | Mo |
Content(%) | 0.38-0.43 | 0.15-0.35 | 0.75-1.00 | 0.025 max | 0.025 max | 0.80-1.10 | 0.15-0.25 |
Mechanical properties - As rolled condition
Tensile strength: | 855 Mpa min |
Yield strength: | 621 Mpa min |
Elongation: | 15% min |
Hardness: | 100HRB max |
Mechanical properties - +SR condition
Tensile strength: | 855 Mpa min |
Yield strength: | 689 Mpa min |
Elongation: | 10% min |
Hardness: | 100HRB max |
Mechanical properties - +N condition
Tensile strength: | 855 Mpa min |
Yield strength: | 621 Mpa min |
Elongation: | 20% min |
Hardness | 100HRB max |
Packing: in bundles tied with steel strips. Internal and external oil coating. End plastic caps.
Marking on each bar: to be confirmed.
Mechanical stamp on each bar: to be confirmed.
Shipping: by containers.
We are ISO9001-2008 certified manufacturer with annual capacity of 12000 tons of hollow bars upto 325mm.
We have systematic manufacturing equipment to satisfy your demand whether you need hollow bars or finished machined parts.
Payment method: 30% deposit,balance before shipment or against copy of B/L or L/C at sight.
Delivery time: within 50 days after receipt of deposit.
MOQ: 5 tons for each size.
Third party inspection by SGS,BV or customer's inspection is acceptable.
Trade term:FOB,CFR,CIF,DAP.