42CrMo 15CrMo Alloy Carbon Steel Pipe St37 C45 Sch40 A106 Gr. B A53 Seamless Steel Pipe

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We believe in: Innovation is our soul and spirit. Excellent is our life. Shopper need to have is our God for 42CrMo 15CrMo Alloy Carbon Steel Pipe St37 C45 Sch40 A106 Gr. B A53 Seamless Steel Pipe, Since the factory founded, now we have committed into the progress of new merchandise. Along with the social and economic pace, we’re going to continue to carry ahead the spirit of “high top quality, efficiency, innovation, integrity”, and follow the operating principle of “credit initially, customer initially, good quality excellent”. We’ll produce a fantastic long run in hair production with our companions.
We believe in: Innovation is our soul and spirit. Excellent is our life. Shopper need to have is our God for , We’ve got top engineers in these industries and an efficient team in the research. What is more, we’ve our own archives mouths and markets in China at low cost. Therefore, we can meet different inquiries from different clients. Please find our website to check more information from our solutions.
Strong resistance to rupturing at high temperatures and high pressures.

May be used for Hydrogen Sulfide Corrosion Services.

Resistant to cracking from hydrogen attack and embrittlement.

Resistant to hot sulfide corrosion cracking.

Can be used for NACE Applications where sour environments are under high temp and pressure.

Can be used in NACE-MRO 175 Sour Service.

Ideal for creep rupture applications.

Can handle high temperatures with very low elasticity.

ASTM A335 Alloy Steel Seamless2
ASTM A335 Alloy Steel Seamless1
ASTM A335 Alloy Steel Seamless4

The types of alloy steel covered by the ASTM A335 – ASME SA335 specification are designed with a “P” prefix, from P5 to P92. Grades P11/P22 and P91/92 are typically found in power stations, whereas grade P5 and P9 are more common for application in the petrochemical industry. Grades P9, P91 are, in the list, the more expensive

ASTM A335Low-Alloy Steel(Grade) UNS   equivalent C≤ Mn P≤ S≤ Si≤ Cr Mo
P1 K11522 0.10~0.20 0.30~0.80 0.025 0.025 0.10~0.50 0.44~0.65
P2 K11547 0.10~0.20 0.30~0.61 0.025 0.025 0.10~0.30 0.50~0.81 0.44~0.65
P5 K41545 0.15 0.30~0.60 0.025 0.025 0.5 4.00~6.00 0.44~0.65
P5b K51545 0.15 0.30~0.60 0.025 0.025 1.00~2.00 4.00~6.00 0.44~0.65
P5c K41245 0.12 0.30~0.60 0.025 0.025 0.5 4.00~6.00 0.44~0.65
P9 S50400 0.15 0.30~0.60 0.025 0.025 0.50~1.00 8.00~10.00 0.44~0.65
P11 K11597 0.05~0.15 0.30~0.61 0.025 0.025 0.50~1.00 1.00~1.50 0.44~0.65
P12 K11562 0.05~0.15 0.30~0.60 0.025 0.025 0.5 0.80~1.25 0.44~0.65
P15 K11578 0.05~0.15 0.30~0.60 0.025 0.025 1.15~1.65 0.44~0.65
P21 K31545 0.05~0.15 0.30~0.60 0.025 0.025 0.5 2.65~3.35 0.80~1.60
P22 K21590 0.05~0.15 0.30~0.60 0.025 0.025 0.5 1.90~2.60 0.87~1.13
P91 K91560 0.08~0.12 0.30~0.60 0.02 0.01 0.20~0.50 8.00~9.50 0.85~1.05
P92 K92460 0.07~0.13 0.30~0.60 0.02 0.01 0.5 8.50~9.50 0.30~0.60
A335 Low-Alloy Pipe UNS Number Yield Strength ksi Tensile Strength ksi Elongation % Hardness
Rockwell Brinell
P1 K11522 30 55 30
P2 K11547 30 55 30
P5 K41545 40 70 30 207 max
P9 S50400 30 60 30
P11 K11597 30 60 20
P12 K11562 32 60 30 174 max
P22 K21590 30 60 30
P91 K91560 60 85 20

Alloy Steel pipe are heat treated to achieve mechanical properties as per the desired alloying element. Below are some of the types of heat treatment.

Normalize Quench and Tempering.

Quench and Tempering.

Normalizing & Hardening.

Transverse/longitudinal: tension and flattening, hardness, bend tests- for material which has been heat-treated in batch furnaces, these tests shall be made on the 5% of the pipes from each heat lot number. For smaller lots, one pipe at a minimum has to be tested.

ASTM A335 Gr. P91 shall have a hardness of 250 HB / 265 HV (25 HRC).

Hydro testing: shall be applied to every length of pipe.

The non-destructive electric test is optional.We believe in: Innovation is our soul and spirit. Excellent is our life. Shopper need to have is our God for 42CrMo 15CrMo Alloy Carbon Steel Pipe St37 C45 Sch40 A106 Gr. B A53 Seamless Steel Pipe, Since the factory founded, now we have committed into the progress of new merchandise. Along with the social and economic pace, we’re going to continue to carry ahead the spirit of “high top quality, efficiency, innovation, integrity”, and follow the operating principle of “credit initially, customer initially, good quality excellent”. We’ll produce a fantastic long run in hair production with our companions.
OEM China Steel Pipe and Carbon Seamless Pipe, We’ve got top engineers in these industries and an efficient team in the research. What is more, we’ve our own archives mouths and markets in China at low cost. Therefore, we can meet different inquiries from different clients. Please find our website to check more information from our solutions.


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