Steel grade: 10#, 20G, 16Mn, 15MnV, 12CrMo, 15CrMo etc;Standard: GB6479. Steel grade: 10#, 20G, 16Mn, 15MnV, 12CrMo, 15CrMo etc; Standard: GB6479; Application: This product applies to non-alloy and alloy seamless steel pipe used for chemical fertilizer equipment and pipeline at work temperature -40°C to 400°C and work pressure 10N/mm2.