| Name | Black key clamps fittings | ||||||||||||
| Application: | Hand railing, safety guardrails, fencing, playground equipment, shop fitting, milking parlours, racking, sports practice nets, greenhouses, exhibition stands, roof top fall prevention, pedestrian barriers and wheelchair access ramps, etc. | ||||||||||||
| Material Grade: | BS EN 1562 1997 black heart malleable iron | ||||||||||||
| Surface Treatment: | BS EN 1461 1999 hot dip galvanization | ||||||||||||
| IRAM 1451-3:1995 epoxy coating | |||||||||||||
| Dacromat two layers | |||||||||||||
| Thread: | BS 2779:1986 1/4", 3/8" | ||||||||||||
| Grub Screw: | ISO 4029, DIN 916 | ||||||||||||
| Weight Model: | Light, Medium, Heavy, | ||||||||||||
| Packing: | By Cartons or by cartons then on the pallets | ||||||||||||
| Chemical Composition: | |||||||||||||
| Specified values % | C | Si | Mn | P | S | Cr | Ni | Mo | Cu | N | V | Co | Ti |
| 2.4-2.9 | 1.4-1.9 | 0.4-0.65 | <0.1 | <0.2% | |||||||||
| Mechnical Properties: | |||||||||||||
| Specified Values | Rm (MPa) | Rp0.2 (MPa) | A5X10(%) | J (-46C) | HB | % | |||||||
| Tensile strength | Limit of elasticity | Elongation | Charpy Impaction | Brinell Hardness | Ferrite Percentage | ||||||||
| >=330mpa | >=8% | <=150HB | |||||||||||
