GB/T 3077 20cr Seamless Steel Pipe 20cr Steel Pipes

• Type: Seamless, Welded
• Technique: Hot Rolled
• Material: Carbon Steel
• Surface Treatment: Black Paint
• Usage: Mining
• Section Shape: Round
• Model NO.: WAN371
• Carbon Steel Pipe: Seamless, Welded
• Size: 1/2"~48"
• Wt: Sch5s~Xxs
• Prodduct Name: 20cr Steel Pipes
• Keyword: Seamless Carbon Steel Pipe
• Transport Package: Wooden Box, in Bundles or as Customer′s Request
• Specification: 1/2"~48"
• Trademark: Kingmertal
• Origin: China
• HS Code: 73060000
• Production Capacity: 50000tons/Year

Product Description

20Cr Steel Pipes manufacturer ,20Cr Steel Pipes exporter & 20Cr Steel Pipes supplier in China
Product description :20Cr steel pipes ,20Cr carbon steel pipes ,alloy Steel Pipe Material 20Cr,21Cr3 steel pipe

Chemical Composition

	Chemical Composition (%)
Grade	C	Si	Mn	Cr	P ≤	S ≤	Cu ≤	Ni ≤	Mo ≤
20Cr	0.18 - 0.24	0.17 - 0.37	0.50- 0.80	0.70 - 1.00	0.030	0.030	0.030	0.030	0.030

Mechanical Properties
Tensile strength:≥835 N/mm2
Yield strength:≥540 N/mm2
Elongation after break:≥10%
Rate of reduction in area:≥40%
Impact absorbing energy:≥47 J
Material Brinell hardness:≤179 (annealing or high temperature tempering state)
Test sample size:15mm

Heat treatment specification
First quenching heating temperature:880 °C (Cooling:Oil, water)
Second quenching heating temperature:780-820 °C (Cooling:Oil, water)
Tempering heating temperature:200 °C (Cooling:Water, air)
Applications
Machine gearbox gears, gear shafts, cams, worms, piston pins, dog clutches, etc.
Equivalent Grades
20Cr steel equivalent to US ASTM AISI, European Germany DIN EN, British BS EN, France NF EN, Japanese JIS and ISO standard.
More standard and material steel pipes besides 20cr seamless steel pipe we can supply is as following :

Standard	ASTM A213 ,A335,A519,EN10216-2,JIS G3458,G3462,G3467,GB5310,DIN17175
Out Diameter	10-813mm
Wall Thickness	1-41mm
Material	Cr5Mo (T5 P5 STFA 25 STPA25 STBA25) 15CrMo (T12 P12 STFA22 STPA22 STBA22) 1.25Cr0.5Mo (T11 P11 STFA23 STPA23 STBA23) Cr9Mo (T9 P9 STFA26 STPA26 STBA26) 12Cr2Mo (T22 P22 10CrMo910) 10Cr9Mo1VNb (T91 P91) 12Cr1MOV 12Cr2MoWVTiB (R102)
Length	1-12m or as customers required
Surface treatment	Black painting, black varnish, transparent oil, epoxy coating, etc.
Technique	Seamless
Usage	1.Low and middle pressure fluid transportation pipeline 2.Casing Tube 3.Boiler Pipe 4.Petroleum and natural gas industry 5.Chemistry industry 6.Electric industry
Supply	1.Seamless steel pipe 2.Steel casing 3.Tubing 4.Hot-rolled steel pipe
Contact	MS wanfury

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WHAT WE DO besides 40cr seamless Steel Pipes ?