Audited Supplier
alloy steel bar
Round or Hexagon
AISI, ASTM, DIN, JIS
Ferrous Steel Scrap
Hot Rolled+Qt or Cold Drawn+Qt
Bar
Polished,Cold Drawn or Griding
Fasteners
Structural Steel Bar
Alloy Steel Rod
High Tensile Bolt
Threaded Rod
ASTM A193 B7,B16,4140,Scm440
Dajin
Anti-Rust Packaging
size: 5-100mm
China
Product Description
ASTM A193 Gr.B7 F1554 Gr.55 alloy steel bar for high tensile bolt
Alloy steel bar B16 B6 B7 B7M(AISI 4140 4142 4145 4140H) for high tensile bolts
Grade: ASTM A193 B16 B7 B
Mark: Cr-Mo
Size: 12mm-300mm
Application:autopart or high tensile bolts
Chemical composition:
Type: Ferrite steel
Shapes and Dimensions:
Size Tolerance:
Length tolerance: +50mm/-0mm
Side length tolerance: +/-2mm
Straightness: Max 3mm/m
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.
Alloy steel bar B16 B6 B7 B7M(AISI 4140 4142 4145 4140H) for high tensile bolts
Grade: ASTM A193 B16 B7 B
Mark: Cr-Mo
Size: 12mm-300mm
Application:autopart or high tensile bolts
Chemical composition:
| C | Mn | P | S | Si | Cr | Mo | V | Al | |
| Chemical composition | 0.36 0.47 | 0.45 0.70 | Max 0.035 | Max 0.040 | 0.15 0.35 | 0.80 1.15 | 0.50 0.65 | 0.25 0.35 | Max 0.015 |
| tolerance | +-0.02 | +-0.03 | +-0.005 | +-0.005 | +-0.02 | +-0.05 | +-0.03 | +-0.03 |
Shapes and Dimensions:
| Nominal Size(mm) | Cross Section Size(mm) | Length (mm) | Straightness (mm/m) | Corner Angle | Corner Radius (mm) | Ground Roughness Rt(max) |
| 125-130RCS | 125-130 (+3, -5) | 2800-3000 | Max. 5 | 90°+-2° | 10-25 | 100um |
Length tolerance: +50mm/-0mm
Side length tolerance: +/-2mm
Straightness: Max 3mm/m
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.