The grenade now used by the United States army is the M67 grenade.
It contains 180 grams of Composition B explosives detonated by a 4 second fuse.
Anyone within 5 metres when it detonates is almost certain to be killed, those within 15 metres will be seriously injured if not killed, in addition it can send shrapnel flying over 200 metres which may cause additional casualties and damage.
A hand grenade.
Friendly as a Hand Grenade was created in 1989.
The hand grenade hasn't been replaced - it's still in use worldwide, even with the most technologically advanced military forces. Rifle grenade launchers, grenade launchers, and underbarrel grenade launchers were developed not to replace the hand grenade, but as a means of filling the gap between a thrown hand grenade and a mortar.
The Grenade Thermal Detonator would be more Powerful
Hand-grenade or Mills Bomb (British).
The Model 24 Stielhandgranate (In English: Stick Hand Grenade) was the standard hand grenade of the German Army and was issued in 1915.
The Holy Hand Grenade of Antioch
No, it is not safe for a child to play with a toy hand grenade.
Unsure of your term "sustain" a grenade. If you are referring to withstanding the blast or stopping the fragments, quite a few things. The standard hand grenade is not all that powerful, and can be stopped by earth, wood, sandbags, concrete, metal, etc. Body armor is intended to stop fragments.
The term "hand grenade" implies that it was thrown by hand, instead of being propelled by other means as with a rifle grenade or an automatic grenade launcher, which incidentally were not invented in ancient China. The first grenades were hand grenades since there was no other way to propel them, yes?
grenade
Child with Toy Hand Grenade in Central Park was created in 1962.