- Steel Rebars[2]
- Steel Round Bars[10]
- Cast & Forged[7]
- Steel Pipes[7]
- Steel H-Beams[3]
- Steel Angles[4]
- Stainless Steel Pipes[1]
- Stainless Steel Bars[1]
- Steel Sheets[10]
- Spring Steel[8]
- Bearing Steel[7]
- Steel Billets[1]
- Square Steel[6]
- Steel Rails[8]
- Structural Steel[2]
- Baking Equipment[3]
- Contact Person : Ms. Liu Adela
- Company Name : Laiwu Le Ren Trade Co., Ltd.
- Tel : 86-634-5648998
- Fax : 86-634-5648997
- Address : Shandong,Laiwu,NO.008 WENHUA SOUTH ROAD,LAICHENG DISTRICT(ROOM1802, F18, INZONE CITY SQUARE)
- Country/Region : China
- Zip : 271100
65# 70# 75# 85# 65Mn 55Si2Mn 60Si2Mn 60Si2CrA 50CrMn 50CrVA spring round stee barl
65# 70# 75# 85# 65Mn 55Si2Mn 60Si2Mn 60Si2CrA 50CrMn 50CrVA spring round stee barl
1.quality; 65# 70# 75# 85# 65Mn 55Si2Mn 60Si2Mn 60Si2CrA 50CrMn 50CrVA Sup3 Sup6 Sup7 Sup9 Sup10 Sup11A CK67 C75 55Si7 65Si7 67SiCr5 55Cr3 50CrV4 ASTM1064 1065 ASTM1070 ASTM1084 ASTM1566 ASTM9255 ASTM9260 ASTM9254 ASTM6150
2.Size: 12-180mm
3.MOQ:50mt
4.Chemical composition:
China standard
Grade | C | Si | Mn | Cr | Mo | V |
65# (CK67 C67) | 0.62 0.70 | 0.17 0.37 | 0.50 0.80 | Max 0.25 | ||
70# (CK67 C67) | 0.62 0.75 | 0.17 0.37 | 0.50 0.80 | Max 0.25 | ||
85# (SUP3) | 0.82 0.90 | 0.17 0.37 | 0.50 0.80 | Max 0.25 | ||
65Mn | 0.62 0.70 | 0.17 0.37 | 0.90 1.20 | Max 0.25 | ||
55Si2Mn (SUP6) (55Si7) | 0.52 0.60 | 1.50 2.00 | 0.60 0.90 | Max 0.35 | ||
60Si2Mn (SUP7) (65Si7) | 0.56 0.64 | 1.50 2.00 | 0.60 0.90 | Max 0.35 | ||
60Si2CrA (67SiCr5) | 0.56 0.64 | 1.40 1.80 | 0.40 0.70 | 0.70 1.00 | ||
50CrMn (SUP9) (55Cr3) | 0.52 0.60 | 0.17 0.37 | 0.65 0.95 | 0.65 0.95 | ||
50CrVA (SUP10) (50CrV4) | 0.46 0.54 | 0.17 0.37 | 0.50 0.80 | 0.80 1.10 | 0.10 0.20 |
Janpan standard
Grade | C | Si | Mn | P max | S max | Cr | Cu | V |
SUP3 (85#) | 0.75 0.90 | 0.15 0.35 | 0.30 0.60 | 0.035 | 0.035 | Max 0.30 | ||
SUP6 (55Si2Mn) (55Si7) | 0.56 0.64 | 1.50 1.80 | 0.70 1.00 | 0.035 | 0.035 | Max 0.30 | ||
SUP7 (60Si2Mn) (65Si7) | 0.56 0.64 | 1.80 2.20 | 0.70 1.00 | 0.035 | 0.035 | Max 0.30 | ||
SUP9 (50CrMn) (55Cr3) | 0.52 0.60 | 0.15 0.35 | 0.65 0.95 | 0.035 | 0.035 | 0.65 0.95 | Max 0.30 | |
SUP10 (50CrVA) (50CrV4) | 0.47 0.55 | 0.15 0.35 | 0.65 0.95 | 0.035 | 0.035 | 0.80 1.10 | Max 0.30 | 0.15 0.25 |
SUP11A | 0.56 0.64 | 0.15 0.35 | 0.70 1.00 | 0.035 | 0.035 | 0.70 1.00 | Max 0.30 | B Min0.0005 |
5.Size Tolerance:
Length tolerance: +100mm/-0mm
Side length tolerance: +/-2mm
Straightness: max 6mm/m
6.Quality Contation
Both end of each bar must be cut.
Ladle furnanced and vacuum de-gassed
Show heat No. on each bar
Surface condition the surface of the hot rolled square bar shall befree cracks, scar and wrinkles that affect the use of the billets. In case there is the above-mentioned defect, it shall be remove.
The mill test certificate shall show the chemical composition, and it is guaranteed that the chemical composition shall be within the limit stipulated in the contract.
65# 70# 75# 85# 65Mn 55Si2Mn 60Si2Mn 60Si2CrA 50CrMn 50CrVA spring round stee barl
