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30mm Dia 40CrMo 20CrMo 42CrMo4 Alloy Steel Round Bar Product

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30mm Dia 40CrMo 20CrMo 42CrMo4 Alloy Steel Round Bar Product

Country/Region	china
City & Province	wuxi jiangsu
Categories	Metallurgy Machinery Parts

Product Details

40CrMo 20CrMo High Tensile Strength 42CrMo4 Alloy Round Bar Steel

ROUND BAR

Products	round bar
Material	SS400 S45C S20C STUB GCr15
Standard	ASTM A240,GB/T3280-2007,JIS4304-2005,ASTM A167
Length	3-12m
Size	8-400mm
Application	ships building industry,petroleum,chemical industries, war and electricity industries, food processing and medical industry, boiler heat exchanger, machinery and hardware fields.
Payment Terms	L/C , T/T or Western Union

PROPERTIES OF FREE-CUTTING STEELS

Machinability is the main property of all free-cutting steels. It means that they are suitable to be machined with shaving removal at the maximum possible speed ensuring the least tool wear, the absolute compliance with dimensional standards and the optimal surface finish of the piece.
This is accomplished by means of maximum addition of Sulphur (and in some cases of Lead as well), that enable the steel to fragment the shaving and lubricate the tool. Such a situation naturally goes to the detriment of the mechanical properties: it is precisely for this reason that free-cutting steels are employed for large mass components which are subject to low stress and not to fatigue tests.

PRODUCT PARAMETERS

Round Bar		Round Bar
Material	Dia (mm)	Dia(mm)	Length(m)
Q235B/HPB300	8-16MM	8-16	9
SS 400Cr	16-200	16-45	5.3-12
S 20C/20#	22-260	48-95	4.9-9
S 45C/45#	22-260	100-260	4.5-10.5

PACKAGE

Packaging	Standard seaworthy export packing, other types of packing can be customized as every requirement.
Shipping packaging	Bundled with firm steel straps, easy for loading and unloading.

Shipping time	5-7 work days after delivery
Shipping way	BY SEA,BY TRAIN
Shipping port	TIANJIN PORT,JINGTANG PORT, CAOFEIDIAN PORT

The heat treatment process

Annealing	Heated to 900 ±20ºC in a hydrogen atmosphere
Holding time	1 hour
Cooling	With speed not more than 5 ºC / min. cooling to below 200 ºC

FAQ

1. What's the minimum quantity customer can order?
If we have your size in stock, we can provide any quantity you want.
If the size is not in stoct, our MOQ will be about 30kgs.
2. Customer do not have express account. How will us arrange the delivery for sample order?
Just need to provide your address information, we will check the express cost, you can arrange the express cost together with sample value.

3.What's our payment terms?
We can accept LC T/T payment terms, it also depending on delivery and total amount. Let's talk more in details after getting your detailed requirements.

4.Do you provide free samples?
If you want several meters and we have stock of your size, we can provide, customer need to bear the International express cost.

5.What's our working time?
We will give you reply through email/phone Online contact tool within 24 hours. No matter working day or holidays.