Brass melts at just under 2000F which is a bright yellow heat, not red hot.
1	Brass	brass	NOUN	NN	Number=Sing	2	nsubj	2:nsubj	_
2	melts	melt	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	0:root	_
3	at	at	ADP	IN	_	7	case	7:case	_
4	just	just	ADV	RB	_	5	advmod	5:advmod	_
5	under	under	ADP	IN	_	7	case	7:case	_
6	2000	2000	NUM	CD	NumForm=Digit|NumType=Card	7	nummod	7:nummod	SpaceAfter=No
7	F	F	PROPN	NNP	Number=Sing	2	obl	2:obl:at|13:nsubj	_
8	which	which	PRON	WDT	PronType=Rel	13	nsubj	7:ref	_
9	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	13	cop	13:cop	_
10	a	a	DET	DT	Definite=Ind|PronType=Art	13	det	13:det	_
11	bright	bright	ADJ	JJ	Degree=Pos	12	amod	12:amod	_
12	yellow	yellow	ADJ	JJ	Degree=Pos	13	amod	13:amod	_
13	heat	heat	NOUN	NN	Number=Sing	7	acl:relcl	7:acl:relcl	SpaceAfter=No
14	,	,	PUNCT	,	_	13	punct	13:punct	_
15	not	not	PART	RB	_	13	advmod	13:advmod	_
16	red	red	ADV	RB	_	17	advmod	17:advmod	_
17	hot	hot	ADJ	JJ	Degree=Pos	13	amod	13:amod	SpaceAfter=No
18	.	.	PUNCT	.	_	2	punct	2:punct	_
