ASTM 304 310 316 316L Stainless Steel Section Tube

• Type: Stainless Steel Pipes
• Standard: ASTM, AISI, GB, JIS, DIN, EN
• Grade: 300 Series
• Certification: ISO, SGS, BV, RoHS, AISI, ASTM, GB, EN, DIN, JIS
• Shape: Round
• Technique: Cold Rolled
• Model NO.: 304 310 316 316L
• Surface Treatment: Polish, Pickling, Bright Annealing
• Perforated: Not Perforated
• Outside Diameter: 4mm - 914.4mm;8mm-630mm
• Wall Thickness: 0.6mm - 30mm;0.5mm-45mm
• Length: 5.8-6.1 M or as Customers′ Request
• Inspection: Dekra,TUV
• Transport Package: Woven Bags, Plastic Bags, Cap Ends, Plywood Cases
• Specification: 8mm*0.5mm-3000mm*45mm
• Trademark: ZJDP
• Origin: China
• HS Code: 73061100
• Production Capacity: 23000 Ton/Year

Product Description

Honed Tube trader
Cylinder ID: 40mm-400mm      Thickness: ≥4mm
Material: 20#  45#(ck45)  16Mn(ST52)  25Mn  27SiMn
Standard: GB/T8713-88  ISO4394/1-1980(EN10305/DIN2391)
 

Chemical compisition

Material	C	Si	Mn	S(≤)	P(≤)	Cr	Ni	Mo	other
C20#	0.17-0.23	0.17-0.37	0.35-0.65	0.035	0.035	≤0.25	≤0.30		Cu≤0.25
CK5#	0.42-0.50	0.17-0.37	0.50-0.80	0.035	0.035	≤0.25	≤0.30		Cu≤0.25
Q345B	≤0.20	≤0.55	1.00-1.60	0.04	0.04	V:0.02-0.15	Nb:0.015-0.06	Ti:0.02-0.20	Alt≥0.015
ST52 E355 16Mn	≤0.20	≤0.55	1.00-1.60	0.045	0.045	V:0.02-0.15	Nb:0.015-0.06	Ti:0.02-0.20	16Mn
25Mn	0.22-0.30	0.17-0.37	0.70-1.00	0.035	0.035	≤0.25	≤0.25
27SiMn	0.24-0.32	1.10-1.40	1.10-1.40	0.03	0.03
42SiMn	0.39-0.45	1.10-1.40	1.10-1.40	0.03	0.03
42CrMo	0.38-0.45	0.17-0.37	0.50-0.80	0.025	0.025	0.90-1.20		0.15-0.25

 
 
Hydraulic&pneumatic liner actuator standard/size/precise

Working method	Cylinder ID (mm)	Length (m)	Straightness (mm/m)	Tolerance on ID	Tolerance on WT	Roughness (μm)
Cold drawn	40-320	≤12M	0.2-0.5	/	±5%	0.8-1.6
Cold rolling	30-100	≥12M	0.2-0.5	/	±5%	0.8-1.2
Cold drawn-honed	40-500	8M	0.2-0.3	H8-H9	±5%	0.2-0.8
Cold drawn-skived	40-400	9M	0.2-0.3	H8-H9	±5%	≤0.4
Hole boring-honed	320-400	8M	0.2-0.3	H7-H9	±8%	≤0.8
Hole boring-skived	320-400	9M	0.2-0.3	H8-H9	±8%	≤0.4

 
 
Mechanical property

Final Supply Condition	cold finished (hard)    (BK)		cold drawn and stress-relieved(BK+S)			Hardness HB
Parameters	T.S	Elongation	T.S	Y.S	Elongation
20#	≥550	≥8	≥520	≥470	≥12	175
45#	≥650	≥5	≥600	≥520	≥12	207
16Mn	≥640	≥5	≥600	≥520	≥15	190
25Mn	≥640	≥5	≥600	≥510	≥15	195
27SiMn	≥840	≥5	≥800	≥720	≥10	230